Results 1–112 of 112 for "lead."
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Chronic lead exposure in flock of backyard chickens
...gg Yolk 3 – 2.05 ppm; Egg Yolk 4 – 1.40 ppm. Based on reference values for lead in poultry, the lead liver values were within the normal range. Levels aren’t considered toxic until they are more than 18 ppm. There are currently no reference values for egg yolks, therefore no comparisons were made. Although toxic levels of lead, toxic to the chicken, were not present in the liver sample or any egg, levels above what are considered normal, backgroun...
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Burn-pile leads to arsenic poisoning
...e potential to poison livestock. For example, calves will find and chew on lead battery plates, resulting in lead poisoning. A calf that appears blind, or has an ear twitch, starts head-pressing or becomes aggressive could be lead poisoned. Whole blood (EDTA) is the best sample to submit for diagnostic testing. To learn more about this case, contact Dr. Cat Barr, Veterinary Toxicologist at the College Station laboratory. For more information about...
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Lead poisoning in guinea fowl
...testinal scrapings demonstrated small numbers of roundworm larvae. Chronic lead poisoning was the presumptive diagnosis. Due to the presence of lead shot in the gizzard, confirmatory testing of the liver was declined. Most lead poisoning in birds is chronic. Clinical disease is usually seen as wasting, ataxia, lameness or paralysis, and anemia. In acute cases, anorexia, weakness, prostration, and anemia may be prominent. At necropsy emaciation may...
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TVMDL leading grant-funded project to develop rapid response methods for influenza A viruses in birds
...ncipal investigator for this project with David Suarez, DVM, PhD, research leader at the USDA’s Southeast Poultry Research Laboratory (SEPRL), and Diego Diel, DVM, PhD, director of virology at Cornell University’s Animal Health Diagnostic Center (AHDC) serving as co-principal investigators, and Pam Ferro, MS, PhD, TVMDL molecular diagnostics section head, and Patrick Mitchell, MS, SCD, AHDC bioinformatics analyst, serving as co-investigators. Fund...
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Lead (ICP/MS)
Measurement of lead by inductively-coupled plasma/mass spectrometry. A $10.75 sample preparation fee will be added to tissue and feed specimens.
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TVMDL promotes three professionals to leadership roles
...Medical Diagnostic Laboratory (TVMDL) has promoted three professionals to leadership roles. On October 1, Julie Piccione, DVM, MS, DACVP, Gabriel Gomez, DVM, PhD, DACVP, and Kiril Dimitrov, DVM, PhD, began new roles as assistant agency directors. Piccione has served as TVMDL’s clinical pathology section head since 2015. She earned a bachelor’s degree from the University of Central Florida and her Doctor of Veterinary Medicine from the University...
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Collaborative project leads to improved diagnostic detection of strangles
...some tests may not be able to differentiate between the two organisms and lead to false positives. Conversely, there are instances where the typically targeted sequence of S. equi has been truncated or deleted and therefore testing leads to a false negative. Other PCR tests, such as the one previously offered at TVMDL, cannot differentiate coinfection with S. equiand S. zoo due to the organisms’ multiple genetic similarities. Improved PCR testing...
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Small Ruminant Syndromic Diagnostic Plans
...iver,50 mg liver biopsy, 500 g feed 2-5 days Analytical Chemistry CS MTWRF Lead (ICP/MS) 0.5 mL EDTA or heparin whole blood 1-3 days Analytical Chemistry CS MTWRF Lead (ICP/MS) 5 g kidney, 5 g liver, 50 mg liver biopsy, 500 g feed, 5 mL water 2-5 days Analytical Chemistry CS MTWRF Metal & Mineral Panel (ICP/MS): cobalt, copper, iron, manganese, molybdenum, selenium, zinc, arsenic, cadmium, lead, and thallium Both 0.5 mL EDTA whole blood and 1 mL s...
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Morris promoted to associate director for Texas A&M Veterinary Medical Diagnostic Laboratory
...tion tools, and an educational reimbursement program. She recently assumed leadership of an agency interdisciplinary team that administers TVMDL’s laboratory information management system (LIMS), and implemented a data-driven fee analysis program for TVMDL’s 700+ test offerings and services. Her leadership has led to improved quality control of data inputs, allowing maximization of the agency’s analytical capabilities. Additionally, Morris’s agenc...
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Stacy Morris, MAg, BS
...erformance evaluation tools, and an educational reimbursement program. She leads an agency interdisciplinary team that administers TVMDL’s laboratory information management system (LIMS), and implemented a data-driven fee analysis program for TVMDL’s 700+ test offerings and services. Her leadership has led to improved quality control of data inputs, allowing maximization of the agency’s analytical capabilities. Additionally, Morris’s agency-wide m...
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Akey set to retire from Texas A&M Veterinary Medical Diagnostic Laboratory
...ife Sciences and director of Texas A&M AgriLife Research, said. “Under his leadership, the agency surpassed several great milestones to further enhance its reputation as a global leader in veterinary diagnostics. We are thankful for his dedication to serving Texans, and beyond, for the past seven years.” Building a lifetime of service to veterinary medicine Akey graduated from the College of William and Mary with a bachelor’s degree in biology in...
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“Hardware Disease” in Backyard Chickens
...ultimately penetrate the gizzard to objects that may contain zinc or lead leading to zinc or lead toxicosis or some other heavy metal toxicosis. Two case histories are presented to demonstrate this condition. In the first case, one dead, 18-month-old female chicken, weighing 1.09 kilograms, was presented to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in Gonzales for necropsy. A two-day clinical history noted anorexia and ruffle...
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Ernst receives 2019 Vice Chancellor’s Award in Excellence for Diagnostic Services
...State University in 2014, Ernst worked in TVMDL’s virology section, again leading sample receipt and performing various testing procedures. In 2015, Ernst was promoted to a supervisory position in the diagnostic services section. For three years, she led and trained a team of individuals responsible for arguably the most crucial part of diagnostic testing; sample receiving, processing, and distribution. During her tenure at supervisor, Ernst impr...
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Jordan Brod
...ated in various leadership programs, including Texas A&M AgriLife Emerging Leaders, TAMU Employee & Organizational Development Group Leadership Forum and TVMDL Supervisors Program. He has received several TVMDL awards including the 2009 Director’s Excellence Award, the 2005 and 2007 Director’s Service Awards, and was named Employee of the Year in 2000 and 2006. Mr. Brod is a 2000 graduate of Texas A&M University with a BS in animal science. Prior...
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Gomez selected as 2021 recipient of Director’s Excellence Award in professional category
...ked with several administrative duties, Gomez takes a hands-on approach to leadership within his sections. This was especially evident last summer when the College Station laboratory experienced a significant surge in testing for Chronic Wasting Disease (CWD). In light of a Texas Parks and Wildlife Department (TPWD) mandate, TVMDL received an influx of submissions for CWD testing. Gomez worked closely with his section and other agency leaders to s...
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Porcine Reproductive and Respiratory Syndrome: A focus on the respiratory syndrome
...is apoptosis of the infected and surrounding macrophages and lymphocytes, leading to immunosuppression and increased susceptibility to secondary infections. However, it is believed that the most significant mechanism of cellular injury associated with PRRSV infection is indirectly through the induction of inflammatory mediators, acute inflammation, and the degradative enzymes released by the inflammatory cells at the site of inflammation. The pri...
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Don’t let your pet pick their poison: Stay vigilant of potentially toxic sources this New Year’s Eve
...s. Plants Holiday favorites, such as poinsettias, mistletoe, and holly can lead to various health issues if ingested by a pet. Anything from plant leaves to their berries can lead to toxicosis. Animals that ingest these plants may experience gastric distress, such as vomiting and diarrhea. TVMDL recommends pet owners contact their local veterinarian if they believe an animal has been exposed to a potentially toxic substance. TVMDL offers a variety...
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How to create a comprehensive serology testing plan
...tests? What is the most practical sample to collect? Example: Tissues may lead to a more definitive result, but are they practical to collect? Establish a plan for sample collection based on possible further testing: Collect multiple samples of the same type at the same time Example: Blood to be used for additional testing Collect multiple samples of the same type over a certain period of time Example: Paired blood samples to evaluate titer level...
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Pet owners should be vigilant of potentially toxic sources during the holidays
...s. Plants Holiday favorites, such as poinsettias, mistletoe, and holly can lead to various health issues if ingested by a pet. Anything from plant leaves to berries can lead to toxicosis. Animals that ingest these plants may experience gastric distress, such as vomiting and diarrhea. TVMDL recommends pet owners contact their local veterinarian if they believe an animal has been exposed to a potentially toxic substance. TVMDL offers a variety of te...
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Gomez awarded 2021 Vice Chancellor’s Award in Excellence for Diagnostic Services
...sections in addition to serving as a pathologist. “Since assuming this new leadership role, Dr. Gomez has continued to flourish,” TVMDL Director Amy Swinford, DVM, MS, DACVM, said. “Dr. Gomez looks beyond the microscope and sees each case from a client’s perspective. He has instilled this same compassion in each of his staff members and because of that, TVMDL has furthered our reputation as a client-centric agency.” Among clients, Dr. Gomez is kno...
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TVMDL adds three heavy metal panels to test catalog
...of requesting a heavy metal panel for their desired species or sample type. Test: Heavy Metal Panel (ICP/MS) – Avian Test Code: 1038 Targets: lead, arsenic, cadmium, zinc, and thallium Price: $32.25 Test: Heavy Metal Panel (ICP/MS) – Mammalian Test Code: 1595 Targets: lead, arsenic, cadmium, thallium Price: $32.25 Test: Heavy Metal Panel (ICP/MS) – Non-Animal Test Code: 1596 Targets: lead, arsenic, cadmium, thallium Price: $32.25 For more informat...
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Diagnostic guidance: Mycoplasma testing options
...be particularly problematic in poultry and swine production, where it can lead to reduced mobility and pain. Mycoplasma infections can lead to lethargy and reduced activity levels in animals. They may appear sluggish, lose interest in food or social interactions, and spend more time resting. Fever is a common response to mycoplasma infections. Mycoplasma infections can also result in reproductive issues for breeding animals such as infertility, m...
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The threat of canine herpesvirus to pregnant bitches and neonate puppies
...ortation, immunocompromising disease, or immunosuppressive therapy. It may lead to viral shedding in secretions from the genital and respiratory tracts. The asymptomatic nature of latency may pose diagnostic challenges. Despite these, understanding the characteristics of CHV latency is crucial for managing the disease, as it plays a central role in maintaining the virus within canine populations. The clinical manifestations of CHV infection range...
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Swinford named sole finalist for director of the Texas A&M Veterinary Medical Diagnostic Laboratory
...ceptional leader. I am confident TVMDL will continue to flourish under her leadership.” During her tenure as associate director, Swinford has elevated TVMDL’s testing services and ensured the agency maintained a strong presence across national organizations, such as the American Association of Veterinary Laboratory Diagnosticians, AAVLD. She has served in multiple capacities within AAVLD, most recently as the current co-chair for the accreditation...
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Rosario receives 2022 Director’s Excellence Award in administrative category
...th the Texas Animal Health Commission, and asserted herself as an industry leader in the three short years she has been with the agency.” In addition to her dedication to TVMDL’s poultry clients, Rosario is also committed to internal agency outreach. She has led staff holiday celebrations, appreciation events, and fundraising efforts. Through this, she has developed a reputation within the agency for how well she works with peers. “Sydney has demo...
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About TVMDL
...A&M Veterinary Medical Diagnostic Laboratory’s vision is to be the global leader in providing innovative and state-of-the-art veterinary diagnostic services. Overview The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) is a member of The Texas A&M University System and is composed of two full-service laboratories, located in College Station and Canyon, and two poultry laboratories, located in Center and Gonzales. With its strategic loc...
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Case Study Library: Bovine
Over-supplementation leads to selenium toxicity in calves Cattle herds recently diagnosed with Johne’s Disease Blackleg (Clostridial myositis) in cattle Bovine CBC reveals concurrent BLV and Anaplasmosis Know your pasture! Lantana poisoning in a group of steers Bovine Abortion Diagnostics find BVD Neonatal Calf Health Issues Listeriosis in feedlot steer Burn-pile leads to arsenic poisoning Bacillary hemoglobinuria in feeder cattle Nitrate toxicit...
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Porcine Circovirus type 2: A focus on respiratory disease
...here are reports indicating that minor alterations in the viral genome can lead to altered viral function and result in a change in the degree of severity of gross and microscopic lesions. Host Factors.While all pigs are susceptible to infection with PCV-2, there is evidence to support breed-associated susceptibility. The basis for this observation is not clear but it is hypothesized that it may be linked to a difference in mounting an effective a...
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Necropsy of a Sulcata Tortoise (Geochelone sulcate) with Urinary Calculi
..., it was determined that this was a urinary calculi obstructing the cloaca leading to increased fluid in the coelomic cavity and the apparent bloating observed clinically. A retained egg was also considered; however, because the mineralized mass was solid, a urinary calculi was considered more likely. The exact cause of the formation of urinary calculi in tortoises is not known. It is thought to be a combination of dehydration, urine retention, se...
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Arsenic – Inorganic (Reinsch)
Detection of arsenic salts by the qualitative Reinsch test. Targets include calcium arsenate, lead arsenate, and lead arsenate.
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Heavy Metal Panel – Avian (ICP/MS)
Measurement of heavy metals by inductively-coupled plasma/mass spectrometry. Targets for avian samples include lead, arsenic, cadmium, zinc, and thallium. A $10.75 sample preparation fee will be added to tissue specimens.
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Heavy Metal Panel – Mammalian (ICP/MS)
Measurement of heavy metals by inductively-coupled plasma/mass spectrometry. Targets for mammalian species include lead, arsenic, cadmium, and thallium. If zinc testing is desired, please see Metal & Mineral Panel. A $10.75 sample preparation fee will be added to tissue specimens.
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Heavy Metal Panel – Non-Animal (ICP/MS)
Measurement of heavy metals by inductively-coupled plasma/mass spectrometry. Targets for feed samples include lead, arsenic, cadmium, and thallium. A $10.75 sample preparation fee will be added to feed specimens.
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Gangrenous Dermatitis diagnosed in Bobwhite quail
...nd poor ventilation may contribute to outbreaks. Management practices that lead to skin damage due to scratching such as overcrowding, feed outages, meal-time feeding, and bird migration in tunnel-ventilated houses can also lead to outbreaks. The cause in this particular case is related to the feather pecking and loss; however, the underlying cause for the pecking was not determined. For more information about this case, contact Gonzales Resident...
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Factors involved in a Bovine Respiratory Disease Complex (BRDC) diagnosis
...equently works on Bovine Respiratory Disease (BRD) cases. Multiple factors lead to a BRD diagnosis, leading many to refer to the syndrome as Bovine Respiratory Disease Complex (BRDC). Affected cattle commonly display signs of fever, lethargy, nasal discharge, and coughing. Some of the factors involved in BRDC are stressors such as weaning, shipping, and weather. From an infectious disease organism standpoint, respiratory viruses generally become i...
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Diagnostic Guidance: Keeping cattle hydrated and healthy
...heifer may need to drink about 20 gallons daily. The lack of rain may also lead to far less forage growth. In normal years, green forage may provide some of the daily water requirements for a grazing cow. In drought years, forage becomes much drier and the amount of water available from forage will lessen. To avoid water deprivation, ensure water is readily available to your cattle daily. Check the pumps that draw water from wells. Make certain tr...
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Molecular Diagnostics Section Overview
...rtPCR testing for multiple diseases/conditions including: Trichomoniasis Avian Influenza Bovine Export Canine Respiratory Disease Feline Respiratory Disease College Station Leadership Interim Section Head: Kiril Dimitrov, DVM, PhD Canyon Leadership Interim Section Head: Kiril Dimitrov, DVM, PhD...
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Virology Section Overview
...ears of virology expertise across a variety of animal species Overview of Virology Services Bovine Viral Diarrhea Testing Virus Isolation Epizootic Hemmorrhagic Disease Testing College Station Leadership Section Head: Mathias Martins, DVM, MS, PhD Assistant Section Head: Vanessa Andrews Canyon Leadership Interim Section Head: Kiril Dimitrov, DVM, PhD...
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Trapp named recipient of 2020 Director’s Excellence Award
...o the necropsy section approximately three years ago. He now serves as the lead necropsy technician. In his role, Trapp assists pathologists perform necropsies. This role is a challenging, yet crucial, position as it requires patience, attention to detail, and a thorough depth of knowledge. Trapp possesses all these qualities and is frequently commended for his dependability on the necropsy floor. The necropsy section regularly processes high-volu...
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Durham joins Texas A&M Veterinary Medical Diagnostic Lab as assistant agency director for finance and chief financial officer
...or finance and operations for 17 years. While there, he provided strategic leadership across all financial and operational areas. “Matthew brings a wealth of diverse leadership to the agency,” TVMDL Director Dr. Amy Swinford, said. “His experience in finance and operations and familiarity with the veterinary industry will serve as benefits to TVMDL as he begins his tenure here.” At TVMDL, Durham will be responsible for all financial activities inc...
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Jessie earns 2021 Director’s Excellence Award in technical category
...reliability, quality, and strong work ethic, the histopathology department leadership has delegated more duties to Kiana,” Assistant Agency Director for Pathology Gabriel Gomez, DVM, PhD, DACVM and nominator, said. “All her added responsibilities were once done by the section supervisory personnel; however, Kiana’s willingness and superb performance have allowed section leadership staff to focus their efforts on other pressing issues while Kiana c...
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Dominguez joins TVMDL as section head
...the section head for Veterinary Services. As section head, Dominguez will lead TVMDL’s team of veterinary diagnosticians who provide client consultation and case coordination services for TVMDL’s 6,000-plus annual clients. Brandon Dominguez, DVM, MS, DACVPM Dominguez earned a bachelor’s degree from Texas A&M University’s Department of Animal Science in 2001. He went on to earn a Doctor of Veterinary Medicine in 2005 and master’s degree in epidemi...
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Avoid a night of fright: Dog owners encouraged to be aware of potentially toxic seasonal items
...Food and drink concerns Overindulgence in a trick-or-treater’s bounty can lead to spooky consequences in children, however candy can be especially harmful if ingested by dogs. “Chocolate toxicity can be a big issue amongst dogs,” Campbell said. “Toxicity tends to be based off the amount consumed and the type of chocolate consumed. Dark chocolate is much more of a problem than milk chocolate.” Methylxanthines in chocolate can cause gastrointestina...
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Pope recognized as 2023 recipient of Director’s Excellence Award in technical category
...ete large cases. Her enthusiasm to assist where needed transpired into her leading two large research projects. Each project involved weeks of sample collection, client communication, and tedious data entry. Her commitment to serving those clients led to the clinical pathology section gaining an additional $32,000 in revenue from those projects. In addition to her phenomenal work ethic, Pope is also praised for her positive attitude and willingnes...
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Analytical Chemistry Section Overview
...ionophores nutritional testing (trace minerals and vitamins) heavy metals (lead, arsenic) cantharidin (blister beetles) anticoagulant rodenticides mycotoxins in feed (aflatoxin and fumonisin) nitrates and prussic acid in forage and hay urolith analysis (calculi ID) therapeutic drug monitoring (potassium bromide) TVMDL proudly serves as the official drug testing lab for approximately 100 livestock shows across the country, including all major shows...
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Anguiano awarded 2020 Director’s Excellence Award in administrative category
...chnicians while also serving as a link between technical staff and section leadership. In addition to daily oversight, she is actively involved in agency-wide projects aimed at improving her section and the agency. For example, Anguiano is the section representative for an internal Laboratory Information Management System (LIMS) focus group. In her role, Anguiano advocates section concerns to LIMS developers and trains staff on the system to ensur...
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Bovine Syndromic Diagnostic Plans
...lture) CSF, brain, CNS tissue 2-7 days Bacteriology CAN CS MTWRFSa MTWRFSa Lead (ICP/MS) 10 g kidney 1-4 days Toxicology CS TR Nitrates – Fluids (Colorimetric) 1 mL ocular fluid, eyeball, urine, serum, water 1-2 days Toxicology CAN CS MTWRF MTWRF Magnesium ocular fluid or eyeball 1 day Clinical Pathology CS MTWRF Vitamin A (HPLC) 10 g liver or 2 mL serum 1-7 days Toxicology CS M Vitamin E - Liver 10 g liver or 2 mL serum 1-7 days Toxicology CS M P...
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Gabriel Gomez, DVM, PhD, DACVP
...leted his residency and earned a PhD from Texas A&M University. He is a Diplomate of the American College of Veterinary Pathologists. Since becoming section head, Gomez has streamlined the TVMDL’s anatomic pathology services. Under his leadership, the section has added several specially trained pathologists, furthering TVMDL’s ability to evaluate complex cases. As the assistant agency director for pathology, Gomez will oversee the agency’s histopa...
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Amy K. Swinford, DVM, MS, DACVM
...ons. She also oversees the agency’s quality assurance program and provides leadership to TVMDL’s three resident directors, located at the agency’s other laboratory locations in Canyon, Center and Gonzales. Dr. Swinford earned multiple degrees from the University of Illinois: two bachelor’s degrees, a master’s degree in veterinary pathobiology and a doctorate in veterinary medicine. She became a diplomate of the American College of Veterinary Micro...
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IMHA in dogs secondary to Babesia gibsoni diagnosed at TVMDL
...(e.g. infectious agents and neoplasia). IMHA is a dangerous disorder that leads to severe clinical disease and is associated with a high mortality rate. The clinical pathology laboratory at TVMDL often receives blood samples for Coombs testing, a direct antiglobulin test that can support the diagnosis of IMHA. Over the last few months, multiple samples for Coombs testing came from young to adult Pit Bull dogs with CBC data suggestive of IMHA. Eva...
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Case Study Library: Avian
...rms Found in Chukar Partridges Histomoniasis “Blackhead” in Bobwhite Quail Lead Poisoning in Guinea Fowl Staphylococcosis and Fowl Pox in Broiler Breeders Lymphoid Leukosis Discovered in Legbar Chicken Sticktight Fleas, Body Lice Discovered in 30-Week-Old Laying Chickens Salmonellosis in Racing Pigeons Aspergillosis Diagnosed in 5-Month-Old Chicken Ulcerative Enteritis Discovered in Bobwhite Quail Harris’s Hawk Diagnosed with Fatal Herpesvirus Inf...
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TVMDL Sections
...laboratory test to be completed and provide essential information that may lead to a definitive diagnosis. The Molecular Diagnostics Section performs tests based on the identification of minute amounts of genetic material (DNA or RNA) derived from infectious microbes in tissues submitted for diagnosis. This section is capable of the identification of both viral and bacterial pathogens using the polymerase chain reaction (PCR), which does not requi...
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Blackleg (Clostridial myositis) in cattle
...ricane Harvey and the subsequent dry conditions worked to stir up the soil leading to exposure of deeply hidden bacterial spores. The affected animals presented to TVMDL for necropsy ranged in age from 4 months to up to 1 year of age. The gross lesions included variably sized areas of skeletal muscle that was dark red and contained gas bubbles (necrotizing myositis). Due to the intramuscular gas bubbles, affected sections of skeletal muscle would...
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Hawk diagnosed with avian pox
...uct the airway by producing large necrotic nodules that, if severe enough, lead to suffocation. This disease is seen throughout the world in mainly temperate regions and is often associated with seasonal mosquito cycles, which is its primary vector. The disease is spread not only by mosquitos, but may also be transmitted by direct contact from bird to bird. Because the poxvirus is stable months to years in the infected scabs from the lesions, it m...
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Cytauxzoon felis in a cat
...infection with Cytauxzoon felis. C. felis is a protozoal hemoparasite that leads to rapidly progressive, systemic fatal disease in domestic felids. The protozoan is transmitted by Ixodid ticks or through ingestion of infected blood or tissue. The organisms undergo maturation phases within the erythrocytes and macrophages before becoming infective and ready for uptake by the tick again. Histologically, it is very common to find vessels in multiple...
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Cryptosporidium serpentis in snakes
...snakes, the organisms are generally found in the stomach, which typically leads to regurgitation 1 to 3 days after eating. Because they are not assimilating food well, the snakes will often exhibit emaciation over time. There is no current effective treatment for this organism. Frequently affected snakes will die or be euthanized due to severe gastrointestinal signs. Figure 1. The black arrowhead indicates a heterophil while the three black arrow...
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Isolation of Nannizziopsis sp. from skin lesions of a veiled chameleon (Chamaeleo calyptratus )
...psis vriesii (CANV) as well as other Chrysosporium species have emerged as leading causes of fungal dermatitis in reptiles. The natural habitat of these keratinophilic fungi are environment (soil, cage substrates etc.), and damage to skin, poor husbandry and stress factors predispose captive reptiles to the fungal infection. For more information about this case, contact Dr. Owais Khan, TVMDL Amarillo bacteriology section head, Dr. Will Sims, veter...
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Metal & Mineral Panel (ICP/MS)
Measurement of metals and minerals by inductively-coupled plasma/mass spectrometry.
Targets include manganese, cobalt, copper, iron, molybdenum, selenium, zinc, arsenic, cadmium, lead, and thallium.A $10.75 sample preparation fee will be added to tissue and feed specimens.
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Water Analysis – Routine & Heavy Metals [Referral]
Measurement of ions (calcium, magnesium, sodium, potassium), sulfates, chloride, pH, conductivity, and total dissolved salts (TDS), as well as metals (zinc, iron, copper, manganese), and heavy metals (arsenic, barium, chromium, cadmium, fluoride, nickel lead) in water.
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Meningeal Worm (Parelaphostrongylus tenuis) in a Sitatunga
...they migrate to the spinal cord and brain. This protocol may inadvertently lead to anthelmintic resistance in more common intestinal parasites and should be used with caution, if at all. For questions about this case, contact Dr. Terry Hensley, veterinary diagnostician at the College Station laboratory, or Dr. Gabriel Gomez, veterinary pathologist by calling 1.888.646.5623. To view TVMDL’s full catalog of tests, visit tvmdl.tamu.edu. Figure 1. Bra...
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Gangrenous dermatitis discovered in separate broiler flocks
...ous tissue). Afterwards, these bacteria and their toxins invade the blood, leading to death of the bird. Predisposing factors to GD include immunosuppression, nutritional deficiency or imbalance, and poor management or sanitation. For more information about this case, contact TVMDL-Center Resident Director Dr. Senties-Cue. To learn more about TVMDL’s full catalog of tests, visit tvmdl.tamu.edu or call one of TVMDL’s four laboratories. Figure 1. Ga...
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Merrell recognized as Vice Chancellor’s Award in Excellence recipient
...section’s success is crucial to the final test result and due to Merrell’s leadership, each process is executed accurately and effectively. In addition to supervising diagnostic services, Merrell is also the IT point of contact for her laboratory. Although her position is not directly related to technology-support, Merrell has assumed this responsibility with confidence. One of her most notable accomplishments was her role in the creation and impl...
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TVMDL experts working toward development of Newcastle disease assay thanks to grant
...beyond – through excellence in veterinary diagnostic services. As a global leader in providing innovative and state-of-the-art veterinary diagnostic services, TVMDL recognized the need for development of an updated rapid and reliable test for detection of all types of NDV. TVMDL drafted a proposal to the NAHLN competitive grant opportunity for “Development and validation of a universal real-time RT-PCR assay to distinguish between virulent NDV and...
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Dogs will eat anything, won’t they?
...be compost piles – as was likely the source of exposure in this case. The leader of the dog pack beat the others to the smelliest, moldiest morsels, and it was his downfall. For more information about this case, contact Dr. Cat Barr, TVMDL toxicologist, at 1.888.646.5623. To learn more about TVMDL’s test offerings, visit tvmdl.tamu.edu or call one of our four laboratories. References Walter SL, 2002: Acute penitrem A and roquefortine poisoning in...
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Fatty Liver – Hemorrhagic Syndrome in a Chicken
...ing in weakening of the reticular framework and blood vessels in the liver leading to the hemorrhage. For more information about this case, contact Gonzales Resident Director Dr. Martin Ficken. To learn more about TVMDL’s test offerings, visit tvmdl.tamu.edu or call one of the agency’s four laboratories. Reference: Crespo, R, Shivaprasad, HL. Fatty Liver-Hemorrhagic Syndrome in Diseases of Poultry, 13th edition, Wiley-Blackwell, ed. Swayne, DE et...
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The Basics of Heartworm Disease Testing
...derate exercise if heartworms have only caused mild damage to the arteries leading from the heart to the lungs. As damage progresses, a dog’s blood flow may be disrupted and cause heart failure. Dogs may also suddenly die if a large number of worms are blocking the flow of blood to the heart. Cats experience heartworm-associated respiratory disease, HARD, which involves coughing, wheezing, respiratory distress, and sometimes sudden death. Whereas...
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Infectious respiratory disease in a group of dogs
...and, as in this case, with Streptococcus equi subspecies zooepidemicus can lead to severe disease and death. Streptococcus equi subspecies zooepidemicus (S. zooepidemicus) has been associated with severe, rapidly progressing hemorrhagic pneumonia in overcrowded canine environments. S. zooepidemicus is a commensal organism found on the oral cavity, tonsils, upper respiratory tract, skin and urogenital tract of horses and has been associated with re...
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Bacteriology Section Overview
...ria (Rapidly-Growing)/Nocardia/Actinomyces Salmonella Anthrax Contagious Equine Metritis Trichomonas – Bovine Regulatory College Station Leadership Section Head: Narayan Paul, DVM, PhD...
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Clinical Pathology Section Overview
...gy Services Thyroid Testing Reproduction Testing Adrenocortical Testing Overview of Parasitology Services Fecal Examinations Parasite Identifications College Station and Canyon Leadership Assistant Agency Director for Clinical Pathology: Julie Piccione, DVM, DACVP Assistant Section Head: Mindy Borst, LVT...
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Histopathology Section Overview
...ecise, manual processing techniques Overview of Histopathology Services Biopsies Immunohistochemical staining Abnormal Prion Protein e.g. Chronic Wasting Disease College Station Leadership Anatomic Pathology Section Head: Gabriel Gomez, DVM, PhD, DACVP Histopathology Assistant Section Head: Alexis Templeton...
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Serology Section Overview
...nd others Overview of Serology Services ELISA Testing Chronic Wasting Disease Equine Infectious Anemia Mycoplasma spp. Detection Vaccine Titer College Station Leadership Section Head: Melanie Landis, DVM, MBA Assistant Section Head: Kalyn Green, MEIM...
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Veterinary Services Section Overview
...tions Hardworking staff who ensure specimens arrive at TVMDL safely and delivered to the appropriate testing section College Station Section Leadership Section Head: Brandon Dominguez, DVM, DACVPM...
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Pyrrolizidine Alkaloid Toxicity in a mature brangus cow
...eactive aromatic pyrroles that causes progressive liver damage, eventually leading to hepatic failure and excess ammonia in the blood. Susceptibility from highest to lowest in veterinary species is as follows: pig > horse> cattle> sheep and goats. Clinically, cattle may also demonstrate aimlessness wandering, head pressing, aggression, or other signs of encephalopathy. During the acute phase of the disease, the liver will exhibit an enlarged and j...
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Bovine thrombotic meningoncephalitis
...des other neurological diseases of cattle including polioencephalomalacia, lead poisoning, salt poisoning, listeriosis, bovine herpesvirus encephalomyelitis, rabies and others. Treatment of affected cattle involves supportive care and use of antibiotics that will cross the blood-brain barrier. Treatment is more successful if the animal is in the early stages of the disease process. To learn more about TVMDL’s test offerings for bovine diseases, vi...
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Marijuana detected in multiple dogs
...ncentrations of CBD and THC in some products may be unknown or inaccurate, leading to inadvertent exposure to THC in dogs and cats. There is little data in the scientific literature describing the pharmacokinetics of THC resulting from CBD administration in companion animals. One group of researchers observed a mean maximum plasma THC concentration of 10.5 ng/mL following the administration of escalating doses of CBD oil (549 mg CBD; ~53 mg/kg) in...
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TVMDL recognizes 2020 Director’s Excellence Award recipients
...Station Dr. Megan Schroeder, Molecular Diagnostics Assistant Section Head-College Station Technical Category Gayla Lovell, Virology Technician III-Canyon Michael Trapp, Lead Necropsy Technician-College Station Student Category Elianna Cubero, Receiving Student Worker-College Station...
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Pfeifer awarded 2020 Director’s Excellence Award
...integral part of the agency’s outreach efforts. She has taken the creative lead of the agency’s visitor experiences and tailors each item for the appropriate audience, whether that be veterinarians or school children. “I don’t know how many more hats we could ask Mallory to wear,” Stacy Morris, assistant agency director, said. “I’m very proud to tell colleagues we have a one-woman communications shop in Mallory Pfeifer. Regardless of the task, she...
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Rodriguez awarded 2020 Director’s Excellence Award
...Diagnostician Melanie Landis, DVM, said. “Through all his various roles and responsibilities, Carlos epitomizes TVMDL’s vision and mission statements by always working to ensure TVMDL is the global leader in providing innovative and state-of-the-art veterinary diagnostic services.” Please join TVMDL in congratulating this year’s Director’s Excellence Award recipients....
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Schroeder named winner of 2020 Director’s Excellence Award
...is passionate about the clients we serve and the work we do,” Molecular Diagnostics Section Head Pam Ferro, MS, PhD, said. “She is a highly valued member of the team and a leader within the organization.” Please join TVMDL in congratulating this year’s Director’s Excellence Award recipients....
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Tracking transboundary and emerging diseases: Newly funded project aims to use Next-Generation Sequencing to detect bovine diseases sooner
...Kiril Dimitrov, DVM, PhD, TVMDL virology diagnostics section head, will co-lead this $1 million project in collaboration with the National Animal Health Laboratory Network, NAHLN and the Plum Island Animal Disease Center. The project is funded by the United States Department of Agriculture’sNational Institute of Food and Agriculture, NIFA. Using Next-Generation Sequencing, NGS, the project’s goal is to develop new methods of early detection for tr...
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All TVMDL locations closed Monday, February 15 due to weather
...Due to inclement weather, all TVMDL locations will be closed on Monday, February 15. Agency leadership is actively monitoring weather conditions in College Station, Center, Canyon, and Gonzales and will make determinations for the rest of the week as soon as possible. Clients are encouraged to monitor the TVMDL website for the most current operational status of each laboratory....
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All TVMDL locations closed Tuesday, February 16
...Due to inclement weather and road conditions, all TVMDL locations will be closed on Tuesday, February 16. Agency leadership is continuing to monitor weather conditions in College Station, Center, Canyon, and Gonzales and will make determinations for the rest of the week as early as possible. Clients are encouraged to monitor the TVMDL website for the most current operational status of each laboratory....
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Operation update for Wednesday, February 17: All TVMDL locations closed
...historical week in Texas weather. Clients are encouraged to monitor the TVMDL website for the most current operational status of each laboratory....
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Operation update for Thursday, February 18: Canyon laboratory closed
...After careful consideration of current weather and road conditions in Canyon, agency leadership has determined the laboratory should remain closed Thursday, February 18. As a reminder, all other laboratories are closed today. Please continue to monitor the TVMDL website for updates on each laboratory’s operational status....
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Diagnostic Guidance: Skin Biopsy Best Practices
...es per case. The best locations are from fully developed lesions or at the leading edge of a developing lesion. Chronic, ulcerative, or resolved lesions are less diagnostic. Handle biopsies with care using Adson-Brown tissue forceps making sure not to crush the delicate tissue. Submitting Biopsy Samples Once collected, submit biopsy samples in 10% formalin in individually labeled jars, if possible. If a bacterial infection is a differential, consi...
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Heavy rains increase potential for mosquito-borne diseases
...y, most of Texas has experienced record-setting rainfall. Flood waters can lead to a multitude of animal health concerns, but as the weather begins to warm up, one concern has the potential to be the most harmful: mosquitos. When it comes to animal health, mosquitos are small vectors that pack a powerful punch. They have the potential to carry numerous pathogens, but the two viruses horse owners should be concerned about are West Nile virus (WNV)...
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A tale of a tail tumor: Ferret chordoma
...pically slow-growing masses. They can be locally invasive and destructive, leading to local discomfort with possible altered ambulation or, in severe cases, paralysis. Fortunately metastasis is rare. Chordomas occurring at the tip of the tail can often be cured with surgical excision. Figure 1: A chordoma from the tail of a ferret (hematoxylin and eosin stain). Figure 2: Characteristic physaliferous cells from a ferret chordoma (hematoxylin and eo...
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Photosensitization: Causes and testing options
...photodynamic agents, which then cause a reaction in the animal’s body that leads to ultra-sensitive skin. This condition is specific to lightly or non- pigmented animals or areas of an animal that have less hair. Severe skin damage can result and include ulceration, necrosis, and edema. Photosensitization is generally classified by the source of the photodynamic agent. The three typical classifications are: Primary Photosensitization (Type I): Occ...
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Systemic Besnoitiosis in a Virginia Opossum
...sible both macroscopically and microscopically, and systemic infection can lead to debilitation and death. In disseminated cases, affected animals are suspected to have underlying immunosuppression such as from stress, endoparasitism, or other unknown causes. Systemic besnoitiosis was diagnosed in a Virginia opossum via histopathology at TVMDL. The animal was from the state of Maryland and was estimated to be a juvenile. Formalin-fixed tissues wer...
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Anatomic Pathology Section Overview
...f available after hours to assist with large animal necropsy submissions Overview of Histopathology Services Pathologic evaluation and consultation Necropsy examinations College Station Leadership Anatomic Pathology Section Head: Gabriel Gomez, DVM, PhD, DACVP Anatomic Pathology Assistant Section Head: Erin Edwards, DVM, MS, DACVP...
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Three TVMDL professionals present at Southwest Veterinary Symposium
...Pathology Assistant Section Head Proper Parasitology Procedures Is it a Parasite? Common Parasites, Pseudoparasites, and Missed Diagnoses in Small Animals Is it a Parasite? Common Parasites, Pseudoparasites, and Missed Diagnoses in Large Animals Dr. Malcolm DeLovio, Clinical Pathology Lead Scientist General Diagnostic Lab Safety Increasing The Efficiency Of Your Diagnostic Laboratory Navigating The Endocrinology Lab – Instruments, Methodologies, A...
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Diagnostic guidance: Calf diarrhea
...al tract. The loss of electrolytes and/or normal gastrointestinal function leads to secondary disease that causes many of the clinical signs recognized in calf diarrhea. Signs The severity of the diarrhea is dependent on the virulence of the organisms involved as well as host factors. The characteristics of the diarrhea are not usually diagnostic, and most of the signs observed are due to dehydration, low blood sugar, and loss of electrolyte balan...
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Matthew Durham
...or finance and operations for 17 years. While there, he provided strategic leadership across all financial and operational areas. At TVMDL, Mr. Durham is responsible for all financial activities including formulating and analyzing data in support of the agency’s mission, preparing biennial legislative budget requests, managing procurement activities, preparing the annual operating budget, and overseeing federal cooperative grants, agreements and c...
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TVMDL recognizes employees with a combined 190 years of service
...istry Scientist II – 10 years of service Dr. Malcom Delovio, Endocrinology Lead Scientist – 20 years of service Terry Dobrovolsky, Quality Assurance Program Director – 15 years of service Dr. Pamela Ferro, Molecular Diagnostics Section Head – 25 years of service Kiana Jessie, Histopathology Technician II – 5 years of service Paige Roig, Analytical Chemistry Lab Supervisor – 10 years of service Jennifer Wade, Serology Administrative Coordinator II...
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Waggoner recipient of 2021 Director’s Excellence Award in technical category
...ggoner has cemented herself as a valuable part of the Canyon lab. Numerous leaders across the agency regularly consult with her on necropsy processes, specific cases, and her expertise across the multiple areas in which she is trained. Her dedication to TVMDL is evident through her everyday service. “When something needs to be done, Aubrey clearly isn’t afraid to be the one to do it,” Merrell said. “She is a tremendous asset to this agency and I t...
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Endocarditis in a White-Tailed Deer Caused by Trueperella pyogenes
..., pulmonary and renal embolic abscesses, and rupture of a pulmonary vessel leading to hemothorax. A swab collected from the inflammatory material in the heart isolated pure colonies of Trueperella pyogenes. Bacterial endocarditis occurs in many animal species. This disease typically develops as a sequela of bacteremia when bacteria settle and colonize heart valves. Microabrasions on the heart valves caused by friction from cardiac contraction and...
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Hensley recognized as 2022-2023 Regents Fellow Service Award recipient
...s were awaiting test results. Most recently, Hensley asserted himself as a leader within TVMDL’s testing efforts for Chronic Wasting Disease (CWD). Following updated requirements from TPWD, TVMDL’s CWD submissions essentially doubled the past two years. Despite supply chain issues and staffing shortages, Hensley has worked tirelessly to provide superior service to TVMDL’s deer clients. In addition to his commitment to diagnostics, Hensley also ded...
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Lemburg honored with Vice Chancellor Award in Excellence
...is best known for his teamwork. An example of this was last year during a leadership transition in the client services section. During this transition, the section was short staffed. Lemburg volunteered his time and abilities to help this section by taking out the garbage each day, reorganizing workspaces, and cross training to ensure this section could still provide exceptional service to TVMDL’s clients. “It is reasonable to state Rod is the mo...
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Brandon Dominguez, DVM, MS, DACVPM
...became a diplomate of the American College of Veterinary Preventative Medicine. Dominguez serves as the Veterinary Services Section Head at the College Station laboratory. In his role, he leads TVMDL’s team of veterinary diagnosticians who provide client consultation and case coordination services for TVMDL’s 6,000-plus annual clients....
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Neurologic Disease due to Bovine Herpesvirus-5 (BHV-5) Infection in a 3-week-old Charolais mix calf
...(Clostridium perfringens Type E). The hepatic levels of arsenic, cadmium, lead, and thallium were under the detection limit and zinc was normal. BVDV nucleic acid was not detected in the ear skin by rtPCR and Neospora caninum DNA was not detected in brain tissue PCR by rtPCR. Given that the changes observed in the brain were highly suggestive of a viral infection, additional testing was performed in consultation with the submitter. A bovine herpe...
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Arnold contributes to evaluation of Salmonella prevalence in feeder cattle
...stic Laboratory (TVMDL) Client Services Section Head Dr. Ashley Arnold was lead author for a longitudinal evaluation of Salmonella in cattle. Environmental components and the cattle’s lymph nodes were evaluated from weaning to finish at three feeding locations. Data from this study provide insight into Salmonella prevalence differences among cattle feeding operations and the possible influence of environmental and/or management practices at each o...
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Too much (or too little) of a good thing: Thyroid disease testing at TVMDL
...important function in the overall health of animals. However, it can also lead to a host of health issues if not functioning properly. The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) offers several options for assessing thyroid disorders. In addition to individual tests, TVMDL offers several panels specifically for canine, feline, and equine clients. In general, thyroid tests require 1 mL of serum in an additive-free tube. However...
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Kleinhenz joins Canyon laboratory as veterinary pathologist
...rved as an agricultural specialist at Iowa State University. While at TVMDL, Kleinhenz will be part of a pathology team responsible for serving the state’s leading cattle producing region. Join TVMDL in welcoming Dr. Kleinhenz to the agency....
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Diagnostic guidance: Hemorrhagic disease in deer
...may result in lameness; ulcers, scars or erosions in the rumen, which may lead to emaciation. Deer with the chronic form are ill for several weeks, but may gradually recover. Affected deer are drawn to streams, lakes, ponds and other water sources as they seek relief from high fever and dehydration. Hemorrhagic disease does not spread directly from deer to deer, but depends on a biological vector for transmission. Both the epizootic hemorrhagic d...
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Shipping samples in the Texas heat
...res will affect the condition of samples if not shipped properly. This may lead to delays in results if samples arrive at TVMDL in an untestable condition. TVMDL encourages clients to beat the heat when shipping samples this summer by following these best practices: Overnight ship during the week | Samples shipped overnight on a Saturday will arrive at the postal warehouse on Sunday. Even with the best cold packs, samples are unlikely to arrive at...
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Campbell joins TVMDL as veterinary diagnostician
...red to the Austin-area veterinary community since 2007. She is an active member of both the Texas and American Veterinary Medical Associations and has served on multiple state-level boards and committees since joining both associations in 1990. Campbell has also served in various leadership positions within several area veterinary medical associations. At TVMDL, Campbell will provide case coordination and guidance to the agency’s small animal clie...
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Ficken recognized as 2022-2023 Regents Fellow Service Award recipient
...e official, and he began his tenure as the lab’s resident director. Ficken leads a four-person staff at TVMDL’s Gonzales laboratory. Though his team is small, they are directly responsible for over one third of TVMDL’s poultry testing. The agency’s poultry client roster includes multiple state and national producers in addition to backyard bird owners. As a board-certified poultry pathologist and veterinarian, Ficken is accustomed to working with...
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Arnold recipient of 2023 Director’s Excellence Award in professional category
...rnold is the driving force behind our section’s success,” Schulz said. “Since joining our team, she has helped usher in many positive changes. She is a leader who makes us feel heard, appreciated, and encourages us to work hard.”...
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Paperwork: The more information, the better
...questions. However incomplete, missing, or vague submission paperwork only leads to more questions, rather than answers. As soon as samples arrive at TVMDL, receiving staff immediately start the accessioning process to ensure testing can begin as soon as possible. Part of the accessioning process is manually reviewing and entering the information listed on the accompanied submission paperwork. If forms are incomplete, lacking detailed information,...
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Determining the cause of diarrhea in pre-weaning calves
...Osm/kg) can damage the lining of the gastrointestinal tract which can also lead to diarrhea. Inconsistent feeding times and milk temperatures, ideally between 101.0 and 102.5 F, can contribute to diarrhea. These factors increase a calf’s risk for diarrhea but alone, are not sufficient. Figure 2. Component causes of calf diarrhea. The components are sufficient to cause diarrhea only when they occur together. Host, agent, and environmental factors b...
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Equine Syndromic Diagnostic Plans
...and Mineral Panel – (ICP/MS) 5 grams fresh liver 2-5 days Toxicology CS TF Lead (ICP/MS) 0.50 mL EDTA whole blood or heparinized blood 1-3 days Toxicology CS MTWRF Vitamin E (HPLC) 10 g liver 1-7 days Toxicology CS R Vitamin E (HPLC) 2 mL serum 1-7 days Toxicology CS R Sarcocystis neurona (Western blot) 2 mL serum - Referral EDS KY - Sarcocystis neurona SAG 2/4/3 ELISA 1 mL serum and 1 mL CSF in red top tubes - Referral EDS KY - Sarcocystis neuron...