Field Use and Evaluation of a Vaccine for Bovine Staphylococcic Mastitis

Abstract

A commercial staphylococcic vaccine was evaluated for the treatment and prevention of Staphylococcus aureus mastitis. There was no significant therapeutic effect upon the udder infections or the clinical incidence of mastitis in 13 cows with chronic mastitis. Prophylactic vaccination in two dairy herds resulted in an insignificant decrease in the clinical incidence of mastitis of both herds and a significant decrease in the rise of infected quarters in one herd. Vaccination was of limited value for controlling S. aureus mastitis. © 1967, American Dairy Science Association. All rights reserved.