The effect of administering long-acting oxytetracycline and tilmicosin either by dart gun or by hand on injection site lesions and drug residues in beef cattle.
Forty yearling cattle were injected intramuscularly with long-acting oxytetracycline and subcutaneously with tilmicosin by dart gun or by hand in a chute 28 days prior to slaughter. The drugs caused injection site lesions and antibiotic residues in the neck and thigh that varied by technique, dose, and site.
Van Donkersgoed
J
J
Canadian Cattlemen's Association, #216, 6715-8th Street N.E., Calgary, Alberta T2E 7H7.
VanderKop
M
M
Salisbury
C
C
Sears
L
L
Holowath
J
J
D000818:Animals; D000900:Anti-Bacterial Agents / Q000008:administration & dosage / Q000009:adverse effects / Q000493:pharmacokinetics*; D002417:Cattle / Q000378:metabolism*; D004350:Drug Residues / Q000032:analysis*; D007273:Injections, Intramuscular / Q000009:adverse effects / Q000662:veterinary; D007279:Injections, Subcutaneous / Q000009:adverse effects / Q000662:veterinary; D018942:Macrolides; D018482:Muscle, Skeletal / Q000737:chemistry / Q000378:metabolism / Q000473:pathology; D010118:Oxytetracycline / Q000008:administration & dosage / Q000009:adverse effects / Q000493:pharmacokinetics*; D014018:Tissue Distribution; D015645:Tylosin / Q000008:administration & dosage / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000493:pharmacokinetics*
D000900:Anti-Bacterial Agents; D018942:Macrolides; D010118:Oxytetracycline; C052319:tilmicosin; D015645:Tylosin