Hygiene in the Prevention of Udder Infections. VI. Comparative Efficacy of a Teat Dip Under Experimental and Natural Exposure to Mastitis Pathogens

Abstract

Efficacies (reduction of new intramammary infections) of a bronopol teat dip under experimental exposure to Streptococcus agalactiae and Stapbylococcus aureus were 41.7 and 54.4%. Under natural exposure, efficacy was 35.0% (P>.05) against Streptococcus species and 50.0% against Stapbylococcus aureus during the first 9 mo of a 12-mo trial when favorable milking equipment and labor conditions prevailed. Corresponding figures were 20.0 and 13.0% during the last 3 mo following onset of malfunctioning equipment and deterioration of labor services. © 1978, American Dairy Science Association. All rights reserved.