Our Industry Today: Efficacy of Parenterally or Intramammarily Administered Tilmicosin Or Ceftiofur Against Staphylococcus aureus Mastitis During Lactation

摘要

Two antibiotic preparations, tilmicosin and ceftiofur, were tested intramammarily and parenter- ally against Staphylococcus aureus mastitis in lactat- ing cows. Neither product was effective as a lactating cow treatment at he doses and durations of treat- ment tested, Injection or infusion of tilmicosin and infusion of ceftiofur resulted in reductions of bacteria present in milk; however, only one quarter treated with infusion of tilmicosin was cured, and no cures were observed for the other treatments.