Microbiological and pathological study of udders of cows experimentally infected with mycoplasms
B"chvarova, Y.; Veselinova, A.
Veterinarnomeditsinski Nauki 10(10): 65-71
A total of 17 Sofia Brown cows, aged 3-7 yr and with daily milk yields of 3-5 l. were experimentally infected with Mycoplasma by the intramammary route; 12 cows were infected with local strains isolated from milk, 2 with strains isolated from the nasal secretion of calves, and 3 with collection strains of M. bovigenitalium, M. agalactiae subsp. bovis and M. laidlawii. A further cow served as a control.