• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer
  • Locations:
  • Canyon
  • Center
  • College Station
  • Gonzales
  • TVMDL Career Center
  • Contact Us

Texas A&M Veterinary Medical Diagnostic Laboratory

Apple App

download on the Apple App Store
download the app on Google Play

Search

Translate:

  • Find a Form
  • Deliver a Sample
    • Specimen Collection Information
    • Packaging Samples for Shipment
    • Drop Off a Sample
    • Cremation
    • Order Supplies
  • Client Portal
    • Get Test Results
    • SVA Portal
    • Pay a Bill
  • Become a Client
  • Resources
    • TVMDL Bovine Testing Guidance and Reference Material
    • Diagnostic Plans
      • Bovine Syndromic Diagnostic Plans
      • Equine Syndromic Diagnostic Plans
      • Small Ruminant Syndromic Diagnostic Plans
      • Small Animal Syndromic Diagnostic Plans
    • Education Library
    • Case Study Library
    • Electronic Reporting: QR Coding Process
    • CoreOne Resources
  • About Us
    • Locations and Hours
    • Agency Leadership
    • Speaker’s Bureau
    • Texas Pullorum-Typhoid Program
    • TVMDL Mobile app
    • Contact Us
  • Locations
    • College Station Laboratory
    • Canyon Laboratory
    • Center Laboratory
    • Gonzales Laboratory
  • Contact Us

analytical chemistry

TVMDL adds three heavy metal panels to test catalog

March 22, 2023 by Mallory Pfeifer

hand scooping up animal feed from gray bucket

The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) has added three panel options for clients interested in testing for heavy metals. Previously, TVMDL offered one heavy metal panel for avian, mammalian, and non-animal samples. … [Read more...] about TVMDL adds three heavy metal panels to test catalog

Filed Under: News, Test Catalog Updates Tagged With: analytical chemistry, Avian, feed, heavy metal, mammalian, toxicology

Exercise caution prior to exhibition: Copper toxicity in show animals

February 10, 2023 by Mallory Pfeifer

Exercise caution prior to exhibition: Copper toxicity in show animals Guy Sheppard, DVM As youth prepare livestock projects for exhibition at stock shows across the state, it is important to keep in mind the possibility of copper toxicity, … [Read more...] about Exercise caution prior to exhibition: Copper toxicity in show animals

Filed Under: DX Guidance, News Tagged With: analytical chemistry, caprine, copper, goat, heavy metal, livestock, livestock shows, ovine, sheep, toxicity

Larson recognized as recipient of 2022 Director’s Excellence Award

January 19, 2023 by Mallory Pfeifer

woman white white shirt and overalls accepting award from woman in maroon vest and white hair

Malerie Larson, technician in the toxicology laboratory, is the 2022 recipient of the Texas A&M Veterinary Medical Diagnostic Laboratory’s (TVMDL) Director’s Excellence Award in the technical category. Larson has been a dedicated TVMDL … [Read more...] about Larson recognized as recipient of 2022 Director’s Excellence Award

Filed Under: Awards & Honors Tagged With: analytical chemistry, award, director's excellence awards

TVMDL to discontinue cyanide and nitrate testing for hay and forage samples

December 1, 2022 by Mallory Pfeifer

Straw bales on farmland with blue cloudy sky

Due to a decrease in requests, the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) will soon discontinue nitrate and cyanide (prussic acid) testing for hay and forage samples. Starting immediately, TVMDL will no longer accept hay … [Read more...] about TVMDL to discontinue cyanide and nitrate testing for hay and forage samples

Filed Under: News, Test Catalog Updates Tagged With: analytical chemistry, forage, hay, plants, toxicology

Collecting hair for livestock drug testing

September 13, 2022 by Mallory Pfeifer

The collection of hair samples should be undertaken by a competent individual within a secure, contamination-free facility. Hair is a strong, stable tissue that is simple to collect, transport, and store. Data suggest hair is as effective a matrix as … [Read more...] about Collecting hair for livestock drug testing

Filed Under: DX Guidance, News Tagged With: analytical chemistry, college station, drug testing, livestock

March 20-26: National Animal Poison Prevention Week

March 21, 2022 by Mallory Pfeifer

Little white maltese dog and food ingredients toxic to him

Each year, National Animal Poison Prevention Week is observed the third week of March. This week is used to demonstrate safety practices and mitigation strategies to prevent pets from accidentally being exposed to potentially toxic sources. Although … [Read more...] about March 20-26: National Animal Poison Prevention Week

Filed Under: DX Guidance, News Tagged With: analytical chemistry, poison prevention, toxic, toxicology

Possible chocolate poisoning in a dog

February 24, 2022 by smorris

brown dog with pointy ears walking in snow

Possible chocolate poisoning in a dog Travis Mays, MS, PhD The TVMDL received a full set of fresh and fixed tissue samples and stomach content from a four-year-old Belgian Tervuren for testing. The dog appeared normal in the morning, running … [Read more...] about Possible chocolate poisoning in a dog

Filed Under: Case Study Tagged With: analytical chemistry, canine, toxicology

TVMDL retires Ammonia (Distilation)

December 29, 2021 by Mallory Pfeifer

woman with brown hair and safety glasses pouring liquid into tube in laboratory

Starting December 30, the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) will no longer offer Ammonia (Distilation). Requests for this test have remained consistently low the past two years. As an alternative, clients interested in … [Read more...] about TVMDL retires Ammonia (Distilation)

Filed Under: News, Test Catalog Updates Tagged With: analytical chemistry, bovine, caprine, cervid, ovine, toxicology, TVMDL

Pet owners should be vigilant of potentially toxic sources during the holidays

December 20, 2021 by Mallory Pfeifer

Cat and Dog eating and drinking Santa's cookies and milk.

Each year the holidays bring together family, friends, and food. Spending time with others is a special part of the season. The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) encourages pet owners to remain vigilant during … [Read more...] about Pet owners should be vigilant of potentially toxic sources during the holidays

Filed Under: DX Guidance, News Tagged With: analytical chemistry, holidays, pet, toxicology

Test for aflatoxin added to TVMDL catalog

October 27, 2021 by Mallory Pfeifer

Bowls with dry pet food on floor

The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) is pleased to announce the addition of Aflatoxin (Immunoaffinity-Fluorometry). This new offering aims to detect aflatoxins in livestock feed or pet food. Aflatoxin is produced by … [Read more...] about Test for aflatoxin added to TVMDL catalog

Filed Under: News, Test Catalog Updates Tagged With: analytical chemistry, livestock feed, pet food, toxicology, toxins

Sample instructions to improve vitamin and trace mineral test results

August 11, 2021 by Mallory Pfeifer

blue gloved hands holding blood tube with blue top

Sample instructions to improve vitamin and trace mineral test results Cat Barr, PhD, DABT The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) has recently updated the sample requirements for Vitamins A and E in serum and for Trace … [Read more...] about Sample instructions to improve vitamin and trace mineral test results

Filed Under: Disease Updates, News Tagged With: analytical chemistry, blood, college station, metal, mineral, toxicology, TVMDL

Analytical chemistry research testing capabilities

August 6, 2021 by Mallory Pfeifer

laboratory beakers with a scientist in white coat in the background

Analytical chemistry research testing capabilities Travis Mays, MS, PhD The analytical chemistry section at the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) is equipped with instrumentation, including eight mass spectrometers, … [Read more...] about Analytical chemistry research testing capabilities

Filed Under: Case Study Tagged With: analytical chemistry, chemistry, college station, drug testing, TVMDL

Strychnine detected in a puppy

June 21, 2021 by Mallory Pfeifer

Strychnine detected in a puppy Travis Mays, MS, DVM The Texas A&M Veterinary Medical Diagnostic Laboratory received stomach content, fresh kidney, and serum from a two-month old mixed breed puppy for testing. The owner found the puppy … [Read more...] about Strychnine detected in a puppy

Filed Under: Case Study Tagged With: analytical chemistry, canine, dog, toxicology, TVMDL

Texas A&M Veterinary Medical Diagnostic Lab on the front lines of pet food recalls

March 30, 2021 by Mallory Pfeifer

white bowl full of brown pet food

This story originally appeared in AgriLife Today and was written by Kay Ledbetter. When small-animal veterinarians have questions or problems, they often turn to the Texas A&M Veterinary Medical Diagnostic Laboratory, TVMDL, due to the … [Read more...] about Texas A&M Veterinary Medical Diagnostic Lab on the front lines of pet food recalls

Filed Under: News Tagged With: analytical chemistry, canine, college station, companion animals, feline, pets, toxicology, TVMDL, vet-lirn

TVMDL upgrades strychnine test; Testing now offered for serum samples

March 29, 2021 by Mallory Pfeifer

Woman with brown hair and white lab coat standing in front out glass containers with clear liquid

The Texas A&M Veterinary Medical Diagnostic Laboratory’s (TVMDL) analytical chemistry section recently upgraded its strychnine test. Changes made include detection of strychnine using LC/MS instead of HPLC and detection of strychnine in … [Read more...] about TVMDL upgrades strychnine test; Testing now offered for serum samples

Filed Under: News, Test Catalog Updates Tagged With: analytical chemistry, bovine, canine, drug testing, equine, feline, toxicology

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

Don’t let your pet pick their poison: Stay vigilant of potentially toxic sources this New Year’s Eve

December 29, 2020 by Mallory Pfeifer

White dog with blue confetti streamers standing in front of a white background

Although holiday celebrations are coming to a close, it is important pet owners continue to stay vigilant about potentially toxic sources. The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) encourages pet owners to take steps to … [Read more...] about Don’t let your pet pick their poison: Stay vigilant of potentially toxic sources this New Year’s Eve

Filed Under: DX Guidance, News Tagged With: analytical chemistry, canine, college station, feline, holiday, pet, toxicity, toxicosis, TVMDL

Zinc contamination in serum samples

December 7, 2020 by Mallory Pfeifer

Ten test tubes with colored tops

Zinc contamination in serum samples Cat Barr, PhD, DABT Recently, the Texas A&M Veterinary Medical Diagnostic Laboratory’s (TVMDL) analytical chemistry section performed zinc testing on a small set of paired samples. Prior to testing, blood … [Read more...] about Zinc contamination in serum samples

Filed Under: Case Study Tagged With: analytical chemistry, college station, minerals, serum, toxic, toxicology, TVMDL

Marijuana detected in multiple dogs

December 7, 2020 by Mallory Pfeifer

Old brown dog with blue collar laying down on floor

Marijuana detected in multiple dogs Travis Mays, MS, PhD The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) received serum for marijuana testing from three different dogs over a period of five days. Each case was unrelated, and … [Read more...] about Marijuana detected in multiple dogs

Filed Under: Case Study Tagged With: analytical chemistry, canine, college station, dogs, drug testing, TVMDL

Failed Equine Pre-Purchase Drug Screen

October 5, 2020 by Mallory Pfeifer

Brown quarter horse standing with head looking over shoulder amongst dark background

Failed Equine Pre-Purchase Drug Screen Travis Mays, MS, PhD Blood was collected during a routine pre-purchase examination on a horse and submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in College Station for drug … [Read more...] about Failed Equine Pre-Purchase Drug Screen

Filed Under: Case Study Tagged With: analytical chemistry, drug testing laboratory, equine, horse

Beetles found in alfalfa hay

September 7, 2020 by Mallory Pfeifer

Four dead blister beetles on white background

Beetles Found in Alfalfa Hay Travis Mays, MS, PhD Beetles found in a new batch of alfalfa hay were submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) for identification. TVMDL’s toxicology section can identify toxic … [Read more...] about Beetles found in alfalfa hay

Filed Under: Case Study Tagged With: analytical chemistry, beetles, college station, equine, horses, toxicology, TVMDL

Gopher bait with anticoagulant detected in horses

August 3, 2020 by Mallory Pfeifer

Four brown horses standing at silver gate

Gopher bait with anticoagulant detected in horses Guy Sheppard, DVM and Cat Barr, PhD, DABT The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) was contacted by a client who was concerned a group of horses had potentially consumed … [Read more...] about Gopher bait with anticoagulant detected in horses

Filed Under: Case Study Tagged With: analytical chemistry, college station, equine, horse, toxicology, TVMDL

TVMDL group authors article for Texas Equine Veterinary Association

July 21, 2020 by Mallory Pfeifer

Veterinary great performing a scan to a young mare

A group of veterinarians and scientists from the Texas A&M Veterinary Medical Diagnostic Laboratory's (TVMDL) College Station laboratory recently authored an article for the Texas Equine Veterinary Association's (TEVA) publication, The Remuda. … [Read more...] about TVMDL group authors article for Texas Equine Veterinary Association

Filed Under: News, Research & Publications Tagged With: analytical chemistry, bacteriology, clinical pathology, equine, histopathology, horse, microbiology, Molecular Diagnostics, necropsy, pathology, serology, toxicology, TVMDL, veterinary diagnostics, Virology

Arsenic toxicosis in two calves

July 20, 2020 by Mallory Pfeifer

Cows who were weaned from their calves three days ago.

Arsenic toxicosis in two calves By Randi Gold, VMD, PhD, DACVP and Cat Barr, PhD, DABT Two hundred and forty straight stocker cattle were on a wheat and grass pasture with access to old barns filled with moldy hay, chemicals, fertilizers, and … [Read more...] about Arsenic toxicosis in two calves

Filed Under: Case Study Tagged With: analytical chemistry, bovine, calves, college station, histopathology, pathology, toxicology, TVMDL

Pentobarbital in a Turkey Vulture

July 13, 2020 by Mallory Pfeifer

A turkey vulture (Cathartes aura), also know as a turkey buzzard, sits perched in a tree in the hills of Monterey in central California.

Pentobarbital in a Turkey Vulture Travis Mays, MS, PhD Twenty turkey vultures were found dead near the vicinity of a horse that was euthanized. One of the turkey vultures was submitted to the Texas A&M Veterinary Medical Diagnostic Laboratory … [Read more...] about Pentobarbital in a Turkey Vulture

Filed Under: Case Study Tagged With: analytical chemistry, Avian, bird, college station, toxicology, TVMDL, vulture

  • Go to page 1
  • Go to page 2
  • Go to Next Page »

Primary Sidebar

Latest News

  • The passing of Dr. John Reagor, Veterinary Toxicologist Emeritus April 21, 2023
  • 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

Footer

For Employees

  • Employee Email
  • TVMDL Rules & Procedures
  • TVMDL Career Center
  • Emergency Alert Systems
  • AgriLife People Directory
  • AgriLife Administrative Services
  • TAMUS Single Sign On
  • Facebook

State of Texas

  • Texas.gov Portal
  • Texas Veterans Portal
  • Statewide Search
  • Texas Homeland Security
  • Risk, Fraud, & Misconduct Hotline

Policies

  • Privacy and Security Policy
  • Accessibility Policy
  • Texas A&M AgriLife
  • Texas A&M Veterinary Medical Diagnostics Laboratory
  • Texas A&M Forest Service
  • Texas A&M AgriLife Extension Service
  • Texas A&M AgriLife Research

483 Agronomy Rd
College Station, TX 77843