Results 76–92 of 98 for "toxicology."

76. Herbicide (GC/MS)

    Detection of a variety of herbicides by gas chromatography/mass spectrometry.

77. Petroleum (GC/MS)

    Detection of petroleum hydrocarbons by gas chromatography/mass spectrometry.

78. Anticoagulant Rodenticides (LC/MS)

    Measurement of anticoagulant rodenticides by liquid chromatography/mass spectrometry. Targets include warfarin, bromadiolone, brodifacoum, diphacinone, chlorophacinone, coumatetralyl, difenacoum, difethialone, coumachlor, and dicoumarol.

79. Vitamin E (HPLC)

    Measurement of vitamin E by high-performance liquid chromatography.

80. Carbamate Insecticides (LC/MS)

    Detection of carbamate insecticides by liquid chromatography/mass spectrometry. Targets include aldicarb, carbaryl, carbofuran, methomyl, and oxamyl.

81. Ionophores (LC/MS)

    Detection and quantitation of a variety of ionophore compounds by liquid chromatography / mass spectrometry. 

    Targets include monensin, salinomycin, narasin and lasalocid.For feeds and feed additives, target compound and expected value are required before testing can begin. 

82. Mycotoxin (LC/MS) [Referral]

    Mycotoxin screen by liquid chromatography- tandem mass spectrometry (LC/MS/MS). This screen is for corn, grains, silage, forage, hay, DDGs, soybean meal, dry pet food, and TMR. Mycotoxins tested: Aflatoxin B1, B2, G1 and G2, T-2 toxin, Ochratoxin A, and Sterigmatocystin at 20 ppb (0.02 ppm). Fumonisin -B1, -B2, -B3, 15-ADON, 3-ADON, DAS and DON (vomitoxin) at 200 ppb (0.2 ppm). Zearalenone at 100 ppb (0.1 ppm).

83. Water Analysis – Routine [Referral]

    Measurement of ions (calcium, magnesium, sodium, potassium), sulfates, chloride, pH, conductivity, and total dissolved salts (TDS) in water.

84. 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. 

85. Water Analysis – Routine & Metals [Referral]

    Measurement of ions (calcium, magnesium, sodium, potassium), sulfates, chloride, pH, conductivity, and total dissolved salts (TDS), and metals (zinc, iron, copper, manganese) in water.

86. Know your pasture! Lantana poisoning in a group of steers

    ...zation 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 information on TVMDL’s test catalog, visit tvmdl.tamu.edu. Photomicrograph depicting bile ductule proliferation. Swollen hepatocytes with pale cytoplasm....

87. Beetle Identification (Microscopy)

    Identification of toxic blister beetles by microscopic examination.

88. Plant Identification

    Identification of both toxic and non-toxic plants.

89. Possible Wilted Maple Poisoning in Mare

    ...es of wilted maple poisoning in horses could occur wherever maple trees are damaged. Owners should be aware of such trees on their properties. To learn more about this case, contact Dr. Cat Barr, diagnostic toxicologist. For more information about TVMDL’s test offerings, visit tvmdl.tamu.edu or call 1.888.646.5623. Figure 1. Wilted maple leaf tree. Figure 2. Example of wilted maple leaves.  ...

90. pH (pH Electrode)

    Measurement of pH levels in rumen.

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

    ...ants that cause toxicity in cattle and horses? Cat Barr, PhD, DABT, is the toxicologist for the Texas A&M Veterinary Medical Diagnostic Laboratory(TVMDL). Each year, she works with animal owners from across Texas who need assistance identifying potentially toxic plants. Although Texas offers a variety of plant life, there are several common plants that grow across different regions of the state. For example, cocklebur seedlings (Xanthium strumariu...

92. Protein – Hay or Forage [Referral]

    Measurement of the total protein content a hay or forage sample.

93. Bone Marrow Fat [Referral]

    Measurement of the percent bone marrow fat to assess the nutritional status of an individual animal. Recommended for diagnosis of malnutrition / starvation. 

94. Coffee senna linked to cattle deaths in Texas

    ...this case, contact Veterinary Diagnostician Dr. Guy Sheppard or Veterinary Toxicologist Dr. Cat Barr. Visit tvmdl.tamu.edu or call 1.888.646.5623 for more information on TVMDL’ test offerings. Reference Welborn, M.G. (2008). Anthrax. Blackwell’s Five-Minute Veterinary Consult: Ruminant. S. R. R. Haskell. Ames, IA, Wiley-Blackwell: 826-827 Figure 1. In recent cases of coffee senna poisoning, diagnosis was made by identifying plant materials in rume...

95. Burn-pile leads to arsenic poisoning

    ...ressing 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 TVMDL’s test catalog and services, visit tvmdl.tamu.edu or call 1.888.646.5623....

96. Avermectins (LC/MS)

    Measurement of avermectins, including abamectin, doramectin, eprinomectin, ivermectin, moxidectin and selamectin, by liquid chromatography/mass spectrometry.

97. Pesticide Screen (GC/MS)

    Detection and identification of a variety of chemicals including organophosphates, organochlorines, carbamates, industrial pollutants, polycyclic aromatics, aliphatic hydrocarbons, miscellaneous pesticides, some natural products and some drugs using gas chromatography – mass spectrometry (GC/MS). Samples are screened using multiple instrument libraries containing mass spectra for thousands of compounds. Positive identification of a suspect sample is made by comparing sample mass spectra with that of a certified reference standard. 

98. Toxin Quantitation (GC/MS)

    Follow up test for TVMDL’s toxin screens to provide quantitation for carbamates, cantharidin, ethylene glycol, glycolic acid, or metaldehyde. Measurement is performed by gas chromatography/mass spectrometry.