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Abstract
Erdem, H., Atasever, S. and Kul, E. 2007. Some environmental factors affecting somatic cell count of Holstein cows. J. Appl. Anim. Res., 32: 173–176.
This study was conducted to determine some effective factors on somatic cell count (SCC of 123 Holstein cows raised in a private dairy farm in Samsun, Turkey on 70±14, 140±14 and 210±14 days in milk in 5 parities and 4 seasons. It was found that logSCC numbers increased with advanced parities and also in the summer season. Effect of stage of lactation on SCC was not significant (P>0.05) but, correlations between logSCC values of each stage of lactation and overall mean oflogSCC was significantly high (P<0.01). Thus, the results of the present study demonstrate that mastitis risks rise with increasing age or parity and during summer, late spring and early autumn.