EN
The study was carried out on 217 cows affected with acute or chronic udder inflammations. The subsequent procedures were followed: 1 - Nafpenzal MC (three times every 24 hours) - a control group consisting of 44 cows; 2 - Lydium-KLP: 0.02 mg/kg of body weight once and antibiotics 3 times intramuscular every 24 hours in 20 cows; 3-a single injection of Lydium KLP (0.01 mg/kg b.w. intravenously) and Mastisan PN intramammary (58 - cows); 4-a single intramammary administration of Mastisan PN after 4-7 days from unsuccessful Lydium treatment; 5 - Mastisan PN used in 67 control cows (94 quarters). The following percentage of recoveries was observed: group 1-78 per cent of quarters of 79.5 per cent of cows; group 2 - 87.9 per cent of the quarters in 90 per cent of the cows; group 3 - 92.8 per cent of the quarters in 94.8 per cent of the cows; 4 - 89.7 per cent of the quarters in 92.9 per cent of the cows; 5 - 84.4 per cent of the quarters in 83.6 per cent of the cows. At day 5 after the antibiotic administration, a lack of clinical signs in milk (34.0 per cent) and in 30.8 per cent of the quarters was observed. 59.3 per cent of recoveries were recorded at that time after the combined treatment. The studies indicated that Lydium KLP at a dose of 0.01 mg/kg increased the efficacy of intramammary antibiotic treatment in cows.