Journal of Dairy Science · 1986 · 33 citations · 7 references
Veterinary MedicineInfectious DiseasesVeterinary Clinical SciencesRuminant MedicineDairy Herd HealthDry Cow ManagementLivestock Infectious DiseasesRuminant Herd HealthRuminant Infectious DiseasesSmall Ruminant MedicineAntibiotic Dry Cow TherapyDry Cow NutritionIntramammary Drug AdministrationIntramammary Drug TherapyIntramammary Infection ControlParenteral Drug AdministrationSelective Dry Cow Therapy
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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