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cattle

Arnold contributes to evaluation of Salmonella prevalence in feeder cattle

March 16, 2023 by Mallory Pfeifer

Feedlot Cows in the Muck and Mud

Texas A&M Veterinary Medical Diagnostic 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 … [Read more...] about Arnold contributes to evaluation of Salmonella prevalence in feeder cattle

Filed Under: News, Research & Publications Tagged With: bovine, cattle, feeder, research, salmonella

Texas Animal Health Commission updates trichomoniasis testing requirements

January 5, 2023 by Mallory Pfeifer

Black Angus bull covered in mud, walking toward the camera with Angus and Charolais heifers behind him.

On December 27, the Texas Animal Health Commission (TAHC) updated the requirements for the Texas Trichomoniasis Program. Among the updates, TAHC increased the duration of transport time for direct smegma samples shipped in phosphate buffered saline … [Read more...] about Texas Animal Health Commission updates trichomoniasis testing requirements

Filed Under: News, Test Catalog Updates Tagged With: bacteriology, bovine, canyon, cattle, college station, cows, Molecular Diagnostics, trich, trichomoniasis

Pinkeye in cattle

June 6, 2022 by Mallory Pfeifer

Close up of cow head and eye

Pinkeye in cattle Guy Sheppard, DVM Infectious Bovine Keratoconjunctivitis (IBK) or pinkeye can be very problematic at times in cattle herds. It is manifested as an inflammation/infection of the cornea and conjunctiva of one or both eyes in … [Read more...] about Pinkeye in cattle

Filed Under: Case Study Tagged With: bovine, canyon, cattle, college station, cows, diagnostics, pinkeye

Direct smegma samples now accepted for trichomonas testing at TVMDL’s Canyon lab

April 20, 2022 by Mallory Pfeifer

close up of black bull with green grass in background

The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) has expanded the Tritrichomonas foetus – Bovine (rtPCR) test offering. Clients interested in testing bovine samples for Tritrichomonas foetus can now submit direct smegma samples to … [Read more...] about Direct smegma samples now accepted for trichomonas testing at TVMDL’s Canyon lab

Filed Under: News, Test Catalog Updates Tagged With: bovine, bulls, cattle, cows, Molecular Diagnostics, trich, trichomonas, trichomonias, Virology

Diagnostic guidance: Calf diarrhea

February 7, 2022 by Mallory Pfeifer

Black calf in green pasture with one ear sticking up

This post is from the TVMDL Calf Diarrhea producer handout.  Diarrhea is the most prevalent illness in calves during the first 28 days of life. Although diarrheas are discussed as being caused by a single disease entity, most cases of diarrhea are … [Read more...] about Diagnostic guidance: Calf diarrhea

Filed Under: DX Guidance, News Tagged With: bovine, calf, cattle, cow, diarrhea

Diagnostic Guidance: Bovine Respiratory Disease (BRD) Complex

January 31, 2022 by Mallory Pfeifer

Cow standing in a pasture on a cattle ranch in Oklahoma

This post is from the BRD Complex producer handout. Bovine Respiratory Disease, commonly called “Shipping Fever”, is said to be the most costly disease affecting stocker and feedlot cattle. It is estimated that over $3 billion is spent annually on … [Read more...] about Diagnostic Guidance: Bovine Respiratory Disease (BRD) Complex

Filed Under: DX Guidance, News Tagged With: bovine, cattle, livestock

Keeping livestock healthy during a Texas winter

January 19, 2022 by Mallory Pfeifer

Red calf standing beside mother in snowy field

Texas winters are infamously fickle. Each year, weather conditions range from mild temperatures with high humidity to record-setting rain, sleet, and sometimes, snow. It’s also not uncommon for Texas to experience these weather conditions throughout … [Read more...] about Keeping livestock healthy during a Texas winter

Filed Under: News Tagged With: bovine, cattle, livestock, Texas, veterinary diagnostics, winter

Best practices for submitting samples for brucellosis testing

November 22, 2021 by Mallory Pfeifer

Feedlot Cows in the Muck and Mud

Each year, the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) performs thousands of tests for brucellosis. To ensure samples are accessioned and tested quickly and accurately, TVMDL recommends the following best … [Read more...] about Best practices for submitting samples for brucellosis testing

Filed Under: DX Guidance, News Tagged With: brucellosis, cattle, pseudorabies, submissions, swine

Polio Syndrome in Ruminants

November 1, 2021 by Mallory Pfeifer

Brown, white and black goat eating green grass

Polio Syndrome in Ruminants Guy Sheppard, DVM Polioencephalomalacia “Polio” is a syndrome of ruminant animals affecting the central nervous system. Seizures are the most notable sign, progressing quickly to the death of the affected animal … [Read more...] about Polio Syndrome in Ruminants

Filed Under: Case Study Tagged With: bovine, cattle, college station, ruminants, TVMDL, vitamins

Detection of Neospora caninum DNA in a mummified bovine fetus

November 1, 2021 by Mallory Pfeifer

brown and white cows standing in green grass

Detection of Neospora caninum DNA in a mummified bovine fetus Andrés de la Concha-Bermejillo, DVM, MS, PhD, Pam Ferro, PhD, Megan Schroeder, PhD The body of a midterm bovine fetus and the attached placenta were submitted to the Texas A&M … [Read more...] about Detection of Neospora caninum DNA in a mummified bovine fetus

Filed Under: Case Study Tagged With: anatomic pathology, bovine, cattle, college station, histopathology, Molecular Diagnostics, pathology

Osteogenesis and dentinogenesis imperfecta in a calf

September 7, 2021 by Mallory Pfeifer

Black calf getting licked by mother in green field

Osteogenesis and Dentinogenesis Imperfecta in a Calf Randi Gold VMD, PhD, DACVP and Guy Sheppard DVM A 21 day-old calf with a history of multiple leg fractures and no evidence of external injuries was euthanized and sent into the TVMDL for … [Read more...] about Osteogenesis and dentinogenesis imperfecta in a calf

Filed Under: Case Study Tagged With: anatomic pathology, bovine, calf, cattle, histopathology, pathology, TVMDL

De la Concha presents at 2021 Therio Conference

September 3, 2021 by Mallory Pfeifer

Earlier this summer, Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) Veterinary Pathologist Andrés de la Concha, DVM, MS, PhD presented at the 2021 Therio Conference in Omaha, Nebraska. The Therio Conference is hosted by the Society … [Read more...] about De la Concha presents at 2021 Therio Conference

Filed Under: News, Research & Publications Tagged With: cattle, conference, endocrinology, equine, horses, pathology, reproduction, ruminants

Monday discusses recent anthrax cases on Around the Caprock

August 30, 2021 by Mallory Pfeifer

Hands in blue gloves writing on a paper near several colorful bacteriology plates

Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) Veterinary Diagnostician Jessie Monday, DVM, MS was a recent guest on Texas Farm Bureau Radio Network's show Around the Caprock. She discussed two recent anthrax cases TVMDL confirmed in … [Read more...] about Monday discusses recent anthrax cases on Around the Caprock

Filed Under: News Tagged With: anthrax, bacteriology, bovine, canyon, cattle, equine, horses, pandhandle, TVMDL

Photosensitization: Causes and testing options

August 16, 2021 by Mallory Pfeifer

Close up view of a brown cow with white face's sun damaged nose

Photosensitization is a serious skin condition in horses and cattle caused by a hazardous combination of certain plants and ultraviolet (UV) light. Certain plants contain photodynamic agents, which then cause a reaction in the animal’s body that … [Read more...] about Photosensitization: Causes and testing options

Filed Under: News Tagged With: bovine, cattle, livestock, plants, sun, TVMDL

Listeriosis in Cattle

August 6, 2021 by Mallory Pfeifer

Line of crossbred calves

Listeriosis in Cattle Guy Sheppard, DVM Since last summer, the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) has seen a few cases of listeriosis in cattle. Submitting veterinarians have reported profound neurological signs that … [Read more...] about Listeriosis in Cattle

Filed Under: Case Study Tagged With: bovine, canyon, cattle, college station, diagnostic testing, TVMDL

The role of diagnostic testing in establishing bovine vaccination programs

July 5, 2021 by Mallory Pfeifer

Young male cowboy sitting on gray horse in the middle of pen full of cows and calves

The role of diagnostic testing in establishing bovine vaccination programs Guy Sheppard, DVM Vaccination programs are integral to the overall health and profitability of a cattle operation. Without vaccinations, diseases such as Bovine … [Read more...] about The role of diagnostic testing in establishing bovine vaccination programs

Filed Under: Case Study Tagged With: bovine, cattle, diagnosticians, diagnostics, health, TVMDL, vaccination

Monday discusses lingering effects of Winter Storm Uri on cattle in the Texas High Plains

March 12, 2021 by Mallory Pfeifer

Black and brown cattle gathered around hay with snow on the ground

Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) Veterinary Diagnostician Jessie Monday, DVM, MS was recently interviewed for the Texas Farm Bureau Radio Network Program "Around the Caprock". She discussed how Winter Storm Uri may … [Read more...] about Monday discusses lingering effects of Winter Storm Uri on cattle in the Texas High Plains

Filed Under: News Tagged With: bovine, canyon, cattle, cows, high plains, panhandle, winter storm uri

Review the range: Cattle and horse owners encouraged to be aware of potentially toxic plants

February 2, 2021 by Mallory Pfeifer

Small purpose flower on a green steam in front of green grass.

Spring is getting closer and summer is not far behind. As the seasons change, it’s important to be aware of the different plants that have grown or been added to your surroundings and their potential toxic effects on cattle and horses. What are … [Read more...] about Review the range: Cattle and horse owners encouraged to be aware of potentially toxic plants

Filed Under: DX Guidance, News Tagged With: analytical chemistry, bovine, cattle, cow, equine, horse, toxic plants, toxicology, toxicosis

Tracking transboundary and emerging diseases: Newly funded project aims to use Next-Generation Sequencing to detect bovine diseases sooner

January 22, 2021 by Mallory Pfeifer

White cow and brown cow staring at camera while standing in a dirt pen during sunset

Transboundary and emerging diseases are constant threats to the livestock industry. Even as biosafety measures have evolved, there is always the lingering peril of highly contagious or newly discovered diseases impacting animal health. Through a … [Read more...] about Tracking transboundary and emerging diseases: Newly funded project aims to use Next-Generation Sequencing to detect bovine diseases sooner

Filed Under: News, Research & Publications Tagged With: bovine, cattle, cow, grant, Molecular Diagnostics, NAHLN, next generation sequencing, Virology

Cryptosporidiosis in cattle

January 18, 2021 by Mallory Pfeifer

Black calf in green pasture with one ear sticking up

Cryptosporidiosis in cattle Guy Sheppard, DVM and Gabriel Gomez, DVM, PhD, DACVP A seven-day-old angus bull calf with a history of diarrhea was necropsied by the submitting veterinarian. The small intestine, liver, kidney and the lymph node were … [Read more...] about Cryptosporidiosis in cattle

Filed Under: Case Study Tagged With: bovine, cattle, cow, crytpo, histopathology, necropsy, pathology

Diagnostic Guidance: Rumen Acidosis (Grain Overload)

November 30, 2020 by Mallory Pfeifer

Farmer Feeding His Baby Cows from a Blue Bucket

Diagnostic Guidance: Rumen Acidosis (Grain Overload) Guy Sheppard, DVM Grain is certainly an important feedstuff for livestock, but it can also be deadly if not fed correctly. Grains are rich in carbohydrates and provide energy for the animals … [Read more...] about Diagnostic Guidance: Rumen Acidosis (Grain Overload)

Filed Under: DX Guidance, News Tagged With: bovine, cattle, college station, grain, nutrition, TVMDL

Anaplasmosis in cattle

October 19, 2020 by Mallory Pfeifer

Small herd of red free-range cattle on a rural farm

Anaplasmosis in cattle Guy Sheppard, DVM Anaplasmosis is a blood cell parasite of cattle with a worldwide distribution, but the disease is most common in tropical and subtropical areas. Anaplasma marginale is the most common organism involved in … [Read more...] about Anaplasmosis in cattle

Filed Under: Case Study, DX Guidance Tagged With: bovine, cattle, college station, parasite, parasitology, TVMDL

Bovine thrombotic meningoncephalitis

September 14, 2020 by Mallory Pfeifer

Angus cows and calves standing in green grass with blue sky

Bovine thrombotic meningoncephalitis Guy Sheppard, DVM and Andrés de la Concha-Bermejilla, DVM, MS, PhD Bovine thrombotic meningoencephalitis (TEM), formerly known as thromboembolic meningoencephalitis (TEME), is a neurological disease, primarily … [Read more...] about Bovine thrombotic meningoncephalitis

Filed Under: Case Study Tagged With: bovine, cattle, college station, cow, histopathology, pathology, TVMDL

Pyrrolizidine Alkaloid Toxicity in a mature brangus cow

August 28, 2020 by Mallory Pfeifer

Black brangus cow standing in green grass

Pyrrolizidine Alkaloid Toxicity in a mature brangus cow David A. Sher, B.S, Catherine Barr, PhD, Dipl ABT, Gabriel Gomez, DVM, PhD, Dipl ACVP An adult, female, 800 lb., Brangus cow in poor body condition was submitted to the Texas A&M … [Read more...] about Pyrrolizidine Alkaloid Toxicity in a mature brangus cow

Filed Under: Case Study Tagged With: bovine, cattle, cow, histopathology, pathology, toxicology

Testing Options for Anaplasma marginale in Cattle

June 22, 2020 by Mallory Pfeifer

Angus cows and calves standing in green grass with blue sky

Testing Options for Anaplasma marginale in Cattle Melanie T. Landis, DVM, MBA Anaplasma marginale is a rickettsial bacterium that invades the red blood cells (RBCs) of ruminants, primarily cattle, and is considered the most common tick-borne … [Read more...] about Testing Options for Anaplasma marginale in Cattle

Filed Under: Case Study Tagged With: bovine, cattle, clinical pathology, college station, parasite, ruminant, serology, TVMDL

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Latest News

  • Too much (or too little) of a good thing: thyroid disease testing at TVMDL March 22, 2023
  • TVMDL adds three heavy metal panels to test catalog March 22, 2023
  • Arnold contributes to evaluation of Salmonella prevalence in feeder cattle March 16, 2023
  • Cytauxzoon felis: An Overview March 16, 2023
  • Martins joins College Station laboratory as Virology Section Head March 2, 2023
  • Neurologic Disease due to Bovine Herpesvirus-5 (BHV-5) Infection in a 3-week-old Charolais mix calf February 27, 2023

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