Results 1–40 of 40 for "plant%20identification."
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Review the range: Cattle and horse owners encouraged to be aware of potentially toxic plants
...h when consumed. Cattle have been found dead within one hundred yards of a plant.” Another plant of concern is singletary pea (Lathyrus hirsutus). Also called Austrian winter pea, singletary pea is mostly found in north central, northeastern, and eastern Texas. Although the vegetation of the plant is not toxic, the seeds contain toxic amino acids. Singletary pea’s seeds are of most concern for horse owners. Horses tend to be the most sensitive spe...
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Small Ruminant Syndromic Diagnostic Plans
...ver, 50 mg liver biopsy, 500 g feed 2-5 days Analytical Chemistry CS MTWRF Plant Identification Intact, preserved plant 1-5 days Analytical Chemistry CS MTWRF Toxicology Evaluation (Digital) 2-10 JPEG/PNG images of plant, beetle, mushroom, blue-green algae, etc. 1-5 days Analytical Chemistry CS MTWRF Trace Mineral Panel (ICP/MS): copper, cobalt, iron, manganese, molybdenum, selenium, zinc 5 g liver, 50 mg liver biopsy, 500 g feed 2-5 days Analytic...
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Plant Identification
Identification of both toxic and non-toxic plants.
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Multiple goats diagnosed with senna plant toxicosis
...u westward through Arizona and southward into Mexico. All parts of a senna plant are toxic, although the relative toxicity of foliage and seed varies somewhat from species to species. All species except twinleaf are relatively unpalatable when green and are more often eaten once dry for the winter. Senna plants are toxic to all species tested, with an unidentified toxin that causes disruption of mitochondrial power gradients in myocytes. In cattle...
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Coffee senna linked to cattle deaths in Texas
...ce long, upright beans or pods in the fall (Figure 2). All portions of the plant are toxic. Although the plant is not particularly palatable, cattle will consume it when there is not much other forage available for grazing. Most of the cases this year occurred within a few weeks of the freeze that reached deep into Texas in mid-November. Once leaves are freeze-killed, palatability increases. Supportive treatments have been suggested, but are usual...
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Pyrrolizidine Alkaloid Toxicity in a mature brangus cow
...n of gastrointestinal signs allowed by overconsumption of larger perennial plants like threadleaf and Riddell’s groundsels in the more western part of the state. Plants belonging to other species including Crolataria or Cynoglossum must be avoided as well. With over 300 known variations of pyrrolizidine alkaloids, being fully aware of their prevalence is a challenge. Unfortunately, the only appropriate response to pyrrolizidine alkaloid toxicity i...
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Toxicology Evaluation (Digital)
Learn more about TVMDL’s Digital Toxicology Service then submit your specimens using the submission form for digital toxicology evaluation.
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Photosensitization: Causes and testing options
...II): Most common form observed in livestock. Occurs when an animal ingests plants that contain phylloerythrin. If the animal has liver damage, phylloerythrin will not be excreted into the animal’s bile and will eventually be circulated. When phylloerythrin reaches the skin, it will initiate a photoxic reaction, causing severe skin burns and sloughing. Causative Toxic Plants Primary photosensitization: Bishop’s weed (Ammi majus) furocoumarin Rainli...
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Don’t let your pet pick their poison: Stay vigilant of potentially toxic sources this New Year’s Eve
...olly 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 of tests to detect exposure to numerous toxic sources. For more i...
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Coffee Senna Poisoning in Cattle
...pens or shade trees rather than uniformly distributed over a pasture. The plant has linear seedpods that are 4 to 6 inches long, tend to be erect and contain numerous compressed, dull brown or dull green seeds. Clinical signs of affected animals include diarrhea, weakness, “alert downers” (not depressed, will eat, but unable to rise), dark urine, and death. Once an animal is down, it generally will not recover, even though it is bright-eyed and c...
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Pet owners should be vigilant of potentially toxic sources during the holidays
...olly 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 tests to detect exposure to numerous toxic sources. For more informa...
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Toxicology Evaluation (Microscopy)
Identification of components and toxic substances, such as plants and plant parts, algae, insects, or bait material.
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Bovine Syndromic Diagnostic Plans
...tents, feces, spoiled forages - Referral National Botulism Reference Lab - Plant ID intact plant 1-5 days Toxicology CS MTWRF Blue Green Algae Microscopic Analysis 20 mL water 1-5 days Toxicology CS MTWRF Water Quality Analysis 500 mL water - Referral TX A&M AgriLife Extension - Feed Analysis 1 lb grain based feed - Referral Servi-Tech - Schedule: M=Monday, T=Tuesday, W=Wednesday, R=Thursday, F=Friday, Sa=Saturday Bovine Neurological (CNS) Disease...
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Know your pasture! Lantana poisoning in a group of steers
...d bile and there were many Kupffer cells with bile pigment. The skin exhibited full-thickness necrosis with a fibrinopurulent exudation, bacterial colonization and edema. All of this pointed toward a secondary photosensitization. Fragments of Lantana camara were found in the rumen content, and the plant was later found in the pasture. To learn more about this case, contact Dr. Cat Barr, Veterinary Toxicologist at the College Station lab. For more...
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TVMDL Sections
...ins. Specimens analyzed may include animal tissues, ingesta, blood, urine, plants, feed, hay, water, baits, fertilizer, etc. Toxicology staff can also identify poisonous plants and nutritional deficiencies of trace metals and vitamins. The Drug Testing Laboratory (DTL) was established in 1987 in response to the passage of the Texas Racing Act. In addition to its primary responsibilities of analyzing samples from racehorses and greyhounds for illeg...
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Nitrate Poisoning in Cattle
...ing can occur in ruminants once concentrations exceed 1% in hay or forage. Plants can accumulate toxic levels of nitrates when they are stressed. Ruminants are susceptible to nitrate poisoning as microorganisms in the rumen reduce nitrates to nitrites. The nitrite anion causes vasodilation and oxidizes ferrous iron in hemoglobin to the ferric state forming methemoglobin, which cannot accept molecular oxygen. As the percentage of methemoglobinemia...
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A dog skin infection caused by bacteria and a novel fungal pathogen, Trichocladium sp
...speculate that the cutaneous infection was initially caused by traumatic implantation of plant material containing Trichocladium sp. into the skin, followed by a secondary bacterial infection. To learn more about this case, contact Dr. Amy Swinford, Associate Director or Dr. Narayan Paul, Bacteriology Section Head at the College Station laboratory. For more information about TVMDL’s test offerings, visit tvmdl.tamu.edu or call 1.888.646.5623. Figu...
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Recent study highlights the importance of testing stray Mexico origin cattle for tick-borne pathogens
...border was established to prevent reinvasion. Since this time, Texas has remained vigilant in attempting to keep the state free of fever ticks and cattle fever. However, a joint study between the United States Department of Agriculture (USDA) Agricultural Research Service (ARS), USDA Animal Plant Health Inspection Service (APHIS), Virginia Tech Animal Laboratory Services, Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) and Texas A&M Un...
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Specimen Collection Information
...er of bales. Forages: Collect and combine into a composite sample 10 to 15 plants or small samples (i.e. handful) or forage from throughout the field or pasture. Fixed Tissue Samples submitted for histopathology should be representative of the lesion (if noted) and the adjacent normal tissue. The ratio of formalin to sample should be at least 10 parts formalin to one part tissue. Samples should be in a wide mouth, break-resistant (not glass), leak...
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Pet food recall expanded: TVMDL alerted to additional products recalled
...ll pet food products containing corn that were made in the firm’s Oklahoma plant and that expire on or before July 9, 2022. Over 1,000 lot codes are affected. View the FDA alert for more information on the specific products involved in this recall and resources for veterinarians and affected pet owners. What is aflatoxin and what are the clinical signs of aflatoxin poisoning? Aflatoxin is produced by the mold Aspergillus flavus. In certain conditi...
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Chronic Wasting Disease testing: TVMDL’s role in protecting Texas wildlife
...are forwarded to the United States Department of Agriculture – Animal and Plant Health Inspection Service (USDA-APHIS) National Veterinary Services Laboratory. IHC Testing TVMDL’s second CWD testing option, IHC, uses fixed or preserved tissues. If tissues arrive at TVMDL fresh or not well fixed, a day is added to the process to allow time for the tissues to be fixed in formalin until they are ready for testing. Once well fixed, tissues are placed...
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Akey set to retire from Texas A&M Veterinary Medical Diagnostic Laboratory
...ecently, Akey was appointed to a U.S. Department of Agriculture Animal and Plant Health Inspection Service, APHIS, National Animal Disease Preparedness and Response consultation board. He has served nationally as president of the American Association of Veterinary Laboratory Diagnosticians and been a co-chair of its Government Relations Committee for over 20 years. “Dr. Akey has been a fervent leader for TVMDL,” Patrick J. Stover, Ph.D., vice chan...
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Texas A&M agencies receive grants for animal disease response, prevention
The U.S. Department of Agriculture Animal and Plant Health Inspection Service National Animal Disease Preparedness and Response Program, NADPRP, awarded two grants totaling $668,166 to Texas A&M AgriLife Research and the Institute for Infectious Animal Diseases, IIAD. The grant funding is directed toward two projects designed to address animal disease outbreak response and mitigation.Heather Simmons, DVM, IIAD director, Bryan-College Station, sai...
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Client Rights and Responsibilities
...return remains or body parts such as fur clippings, feathers, bones, or implants to the Client. Private crematoriums may pick up remains on behalf of Clients in accordance with our crematorium release policy. Clients are not allowed in the laboratory during testing or diagnostic procedures. Receive clear guidance on sample needs for all diagnostic tests. Recognize the limits of veterinary diagnostics, the suitability of a sample for certain tests...
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Possible chocolate poisoning in a dog
...eath of this animal. Methylxanthines are alkaloids that occur naturally in plants and are found in coffee beans, tea, and cocoa beans. The methylxanthines in chocolate include caffeine and theobromine. Methylxanthines are rapidly absorbed by mouth and metabolized in the liver. Methylxanthines undergo enterohepatic recirculation and can be reabsorbed via the bladder wall.1 The elimination half-life of methylxanthines varies widely by species. In do...
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Three TVMDL professionals present at Southwest Veterinary Symposium
...ist Feed-Associated Toxin and Nutritional Testing, Ruminant Focus Frequent Plant Poisonings, Ruminant Focus Mindy Borst, Clinical 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 L...
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Diagnostics of a disaster: Skin and foot concerns during floods
...wners. Excessive rainfall can contribute to mosquito-borne diseases, toxic plants, dermatologic conditions, and many other diseases. The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) offers testing and diagnostic consultations to assist animal owners and practitioners with many issues contributed to flooding. This is the final post in a series that cover the various animal health concerns contributed to flooding. Here are some of the...
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Diagnostics of a disaster: Insect-borne disease concerns during floods
...wners. Excessive rainfall can contribute to mosquito-borne diseases, toxic plants, dermatologic conditions, and many other diseases. The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) offers testing and diagnostic consultations to assist animal owners and practitioners with many issues contributed to flooding. This post is the second in a series that cover the various animal health concerns contributed to flooding. Here are some of the...
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Diagnostics of a disaster: Animal disease concerns during floods
...wners. Excessive rainfall can contribute to mosquito-borne diseases, toxic plants, dermatologic conditions, and many other diseases. The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) offers testing and diagnostic consultations to assist animal owners and practitioners with many issues contributed to flooding. This post is the first in a series that cover the various animal health concerns contributed to flooding. Here are some of the...
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Akey appointed to USDA APHIS consultation board
The United States Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) has appointed Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) Director Bruce Akey, MS, DVM to a national consultation board. This consultation board will assist USDA APHIS with implementing the National Animal Disease Preparedness and Response Program (NADPRP). According to USDA APHIS, the NADPRP was established in 2018 by the Farm B...
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Protein – Hay or Forage [Referral]
Measurement of the total protein content a hay or forage sample.
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Nitrate toxicity in a herd of cattle
...evels of nitrates from the fertilizer. Sources of nitrate include numerous plants known to concentrate nitrate, contaminated forages, contaminated water, and direct exposure to fertilizers. Acute nitrate poisoning is most likely to occur when forage nitrates exceed 10,000 ppm (dry weight bases) or when water contains 1500 ppm or more. Clinical signs include gastrointestinal irritation, dyspnea, ataxia, terminal convulsions, death 6 to 24 hours aft...
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TVMDL Mobile app
...to allow for fast submission of each new sample. Quick results allow for rapid clinical intervention and treatment. Digital Toxicology submission: Submit images of potentially toxic plants, mushrooms, baits, and other substances Easy submission process with abbreviated submission form Removes hassle of shipping forages...
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Listeriosis in a feed yard steer
...ymptomatic animals. Soil or fecal contamination results in its presence on plants and in silage. Most infections are acquired by ingestion, but Listeria can also spread by inhalation or direct contact. Venereal transmission might also be possible. Listeriosis is primarily a winter-spring disease of feedlot or housed ruminants. The less acidic pH of spoiled silage enhances multiplication of L monocytogenes. Outbreaks may occur around 10 days after...
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Case Study Library: Ovine/Caprine
...Q fever abortion diagnosed at TVMDL Multiple goats diagnosed with senna plant toxicosis Abortion of a sheep fetus due to Cache Valley Fever Virus Avoid the Madness of Rabies Submissions Copper Toxicity in Show Animals Rabies in a Sheep Pathologic Diagnosis of Coccidiosis in Goats Enterotoxemia in sheep and goats Polio Syndrome in ruminants Listeriosis in a goat doe...
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Analytical Chemistry Section Overview
...ssants Overview of Toxicology Services microscopic identification of toxic plants, toxic baits, toxic algae pesticides, herbicides, petroleum hydrocarbons, 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 (...
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Travis Mays, MS, PhD
...es associated with forages and grasses, poisons and many other toxicology-related questions. He also serves as a subject matter expert in microscopic identification of toxic plants in GI contents. He is the Analytical Chemistry Section Head, a section that comprises drug testing and toxicology....