Frequency of infectious streptococcal mastitis in the Sombor area
Milojevi,; Isakov, M.
Veterinarski Glasnik 19(6): 463-466
ISSN/ISBN: 0350-2457 Accession: 024718014
In 1963 and 1964, 2 complete bacteriological examinations of milk were performed in order to establish the frequency of Streptococci agalactiae as a causal agent of mastitis. Milk samples were taken from 5000 cows on 18 farms. They were incubated at 37[degree]C for 24 hours and seeded on TKT media according to the method of Hauge and Kohler-Ellingsen/. The percentage of infected cows in 1963 ranged from 9.3% to 33.3% (average 17.02%) and in 1964, from 2.5% to 12.1%/average 7.59%/. The highest decrease in the number of infected cows in 1964 occurred on 6 farms where all the planned preventative measures were included isolation of infected cows, disinfection of the udders and disinfection of the stables.