Somatic Cells Counts (SCC) in the milk of Holstein - Friesian (HF) and Brown-Swiss (BS) were determined by using direct microscopic technique. In total, 1,415 sets of SCC data from 67 HF and 16 BS cows were analyzed. Breed, parity milking time, lactation month and the interactions of herd x lactation month, breed x lactation month, and parity x lactation month had significant effects on SCC as
... [Show full abstract] well the covariable daily milk yield. The SCC means were 312,464 cells/ml and 491,813 cells/ml for BS and HF cows, respectively. Resistance mechanisms, morphological conformations of udders and milk yields could be the possible reasons of the differences between HF and BS. Improving milking management, hygiene, nutrition and barn conditions on these farms could decrease SCC in milk.