Dry cow therapy: effects of method of drug administration on occurrence of intramammary infection.
Two methods of administering a dry cow infusion product were evaluated: 1) full insertion of infusion cannula into the teat cistern, and 2) partial insertion of infusion cannula into the teat canal. Eighty-six Jersey cows were treated at dry off; two quarters of each cow were infused using method 1, and two quarters were infused using method 2. The new quarter infection rate for method 1 with major intramammary pathogens was 9.9% (17 infections/172 quarters); that for method 2 was 4.1% (7 infections/171 quarters). Treatment efficacies against major pathogens for methods 1 and 2, were 57.9% (11 cures/19 quarters) and 85.7% (12 cures/14 quarters), respectively.
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RL
Boddie
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SC
Nickerson
D000818:Animals; D000890:Anti-Infective Agents / Q000008:administration & dosage / Q000627:therapeutic use; D001424:Bacterial Infections / Q000188:drug therapy / Q000662:veterinary*; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy*; D004338:Drug Combinations / Q000627:therapeutic use; D004358:Drug Therapy / Q000379:methods*; D005260:Female; D005998:Glycine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D008321:Mammary Glands, Animal / Q000382:microbiology*
D000890:Anti-Infective Agents; D004338:Drug Combinations; D005998:Glycine