| the new south wales mastitis control program. 2. effect upon bacterial infections. | bacteriological examinations were made on quarter samples from cows in 35 herds over a 3 year period to monitor the response in a mastitis control program. initially, staphylococcus aureus predominated in 32 of the herds and the mean herd prevalence was 26%. the control measures halved this rate but there was considerable variation in response between herds. the decline occurred rapidly and there was a significant reduction (p less than 0.01) by 3 months. streptococcus agalactiae predominated in ... | 1977 | 348186 |