Leczenie i profilaktyka mastitis jako element poprawy jakosc higienicznej mleka

The hygienic parameters of bulk tank milk were assessed in 10 farms (131 cows) before treatment with Mastisan PN, antibiotics and Lydium KLP - during the treatment and after completion of the treatment. Inflammation of the udders was found in 48 per cent of the cows; advanced forms of the disease were noticed in 10.3 per cent of the quarters and subclinical forms were found in 17.2 per cent of the quarters. All the farms had some problems with milk quality. The worst parameters of milk quality were observed before and during the treatment. The restoration to health, culling chronically infected cows, the control of milking hygiene and advisory service improved the milk quality. The average somatic cell count decreased to 81.8 per cent, the total count of bacteria was reduced to 71.0 per cent and total count of Staphylococci spp. to 52 per cent; the total count of coagulase positive strains of Staphylococcus spp. was diminished to 93 per cent, the amount of aesculin positive streptococci was lowered to 42.6 per cent and aesculin negative strains of Streptococcus spp. to 55.5 per cent. The presence of bacteria on milk for a long period after the treatment indicated a sloppy system of milk collection.