Bulgarian Journal of Agricultural Science
Array ( [session_started] => 1656340893 [LANGUAGE] => EN [LEPTON_SESSION] => 1 )
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STAPHYLOCOCCUS AUREUS AND OTHER PATHOGENS IN RELATION TO BREED OF CATTLE AND SOMATIC CELL COUNT
M. Vyletelova-Klimesova, O. Hanus, A. Dufek, I. Nemeckova, J. Horacek, A. Ponizil, L. Nejeschlebova
Abstract: Influence of breed on somatic cell count (SCC) and occurrence of particular species was evaluated. The samples were collected from farms with Holstein (H; 10 farms - 365 cows) breeding and from farms with Czech Fleckvieh (CF; 2 farms - 67 cows). The obtained dataset was statisticaly evaluated by analysis of variance. The occurrence of pathogens was compared between H and CF. The relationship between SCC and incidence of pathogens was determined as well. It is evident that more positive cows were in breed H compared to CF (H 41.6%; CF 26.9%). The most frequent pathogens in H breed were S. aureus (13.7%), S. uberis (9.6%), S. haemolyticus (8.5%), S. agalactiae (6.9%), E. faecalis (2.5%) and E. faecium (0.8%), while only S. uberis (19.4%), S. haemolyticus (6%) and S. aureus (1.5%) were found in CF. SCC results showed the higher SCC in H breed in case of both negative and positive cows as well and significant impact of breed on logSCC (F = 6.4, P = 0.012). The significant effects of bacterial species were confirmed (F = 13.6, P < 0.001). Multiple comparison among groups of bacterial species showed significant differences between negative and S. aureus, S. agalactiae, S. uberis (P = 0.012, P < 0.001, P < 0.001). Differences between negative and other pathogens were not signifiant.
Keywords: Czech Fleckvieh; Holstein; pathogens; raw milk; somatic cell count
Date published: 2017-10-13
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