[Psychrotrophic and coliform microflora of the udder in cows]

A study of the psychrotrophic and coliform microflora over the udders of cows was carried out. It was proved that the way and means of cleaning them exercise a great influence on the composition of the psychrotrophic and coliform microflora. The psychrotrophic flora over the udders consisted of 46.9% of specimens of p. Micrococcus, 8.7%-p. Streptococcus, 8.2% Staphylococcus, 7.4%-Corynebacterium, 2.8%-Saccharomyces, 10%-coliform bacteria, 12.5%-psychrophils, mainly of p. Pseudomonas and p. Flavobacterium. The coliform microflora over the udders consisted of 55.4% of p. Escherichia, 20.8%-p. Citrobacter, 16.8%-Klebsiella and 6.9%-p. Enterobacter.