EN
The studies were carried out on 228 cows with clinical symptoms of mastitis in one or more quarters. Mastisan PN/MC was administered only once into 318 sick quarters. The preparation was made out in the Veterinary Institute on the basis of the experiences of the author. One dose of Mastisan PN/MC contains 600 000 iu of procainic penicillin, 300 000 iu of neomycin and components intensifying phagocytosis. Control examinations including clinical, cellular (CMT) and bacteriological tests were performed on the day 7, 14, 21 and 28 after treatment. The full effect of therapy was established in 87.1% of treated quarters in 85.5% of cows. It was found that Mastisan PN/MC revealed a high therapeutic efficacy in mastitis caused by Streptococcus agalactiae, S. dysgalactiae, S. uberis. Staphylococcus aureus, Staph. epidermidis, Micrococcus sp. and Escherichia coli. The best effects were noted both in subacute and acute forms of mastitis.