@article{article_195621, title={-}, journal={İstanbul Üniversitesi Veteriner Fakültesi Dergisi}, volume={39}, pages={76–83}, year={2012}, DOI={10.16988/iuvfd.78480}, url={https://izlik.org/JA25HC93FZ}, author={Mıtev, Jurii and Gergovska, Zhivka and Mıteva, Tchonka and Vasılev, Nasko and Uzunova, Krassimira and Penev, Toncho}, keywords={Meme hijyen skoru, somatik hücre, süt sığırları, serbest gezinmeli sistem, bağlamalı sistem}, abstract={The study includes a total o f 310 Black-and-white cows from 9 herds throughout the period from November 2010 t i l l January 2011. The farms used two rearing technologies (free and tied) and were o f different capacity. To assess the degree o f udder contamination a 4-grade system has been used. The rearing technology and the farm capacity had a reliable effect on somatic cells count (SCC) i n milk. I n tied rearing higher SCC have been recorded than i n free rearing, a lesser relative share o f cows w i t h clean udders (hygiene score -1) and a greater one o f cows w i t h contaminated udders (hygiene score 3 and 4). The greatest was the relative share o f cows w i t h contaminated udders (hygiene score 3 and 4) and the least clean were the cows i n farms w i t h tied rearing and capacity from 50 to 100 cows. Cows w i t h score 1 (clean udder) had the smallest somatic cell count - 172.4x103/ml, which was related to l o w risk o f mastitis diseases. The ones w i t h score 3 and 4 had somatic cell count over 400x103/ml. The availability o f more than 20% o f cows w i t h udder hygiene score 3 and 4 was an indicator for increased risk o f mastitis i n the herd and obtaining l o w quality milk. Somatic cell count i n m i l k depended largely on the maintenance o f bedding and the farm hygiene rather than the farm capacity and the rearing technology}, number={1}