Bacteriological examination of pathological material from cows

Abstract

A bacteriological study of pathological material from cows in livestock farms of the Leningrad region was conducted. The following were examined: mastitis milk, vaginal swabs, blood, internal organs, manure, silage. 267 cultures and 11 species of pathogenic and opportunistic microorganisms have been isolated and identified. The maximum distribution is accounted for by staphylococci – 36.33%., among which are more common: golden Staphylococcus aureus, white Staphylococcus epidermidis and lemon yellow Staphylococcus citreus. In second place in terms of prevalence was a microorganism from the Enterobacteriaceae family – Escherichia coli – 20.6%. When analyzing the isolated microflora in each individual farm, it is possible to identify the dominant microflora. This study showed that mixed infections are more common and there is an associative effect on the animal's body. When analyzing the isolated microflora in a separate farm, it is possible to identify the dominant microflora. Farms have their own microbial landscape, which must be taken into account when prescribing antibacterial therapy. Conducting a bacteriological study to isolate the pathogen and determining antibacterial sensitivity helps to prevent the formation of resistance in microbes to antibiotics.