Vol. 9, Issue 1 (2020)

Author(s):
Swarnalata Bara, SK Chaurasia, BPS Kanwar and AK Chaturvedani

Abstract:
The present study was carried out in the herd of Jersey crossbred cows at private dairy farm located at Durg, Chhattisgarh. Milk samples were analyzed to evaluate the effect of season, stage of lactation and parity on somatic cell counts (SCC). The mean SCC in low and high milk yielders groups were 1.323 ± 0.043 and 1.274 ± 0.046 x 10⁵ cell/ml, respectively while in different season (spring and summer) were noted as 1.125 ± 0.034 and 1.475 ± 0.034 x 10⁵ cell/ml, respectively. In early, mid and late stage of lactation the SCC were 1.189 ± 0.051, 1.271 ± 0.051 and 1.439 ± 0.051 x 10⁵ cell/ml, while in early, mid and late parities were found to be 1.215 ± 0.053, 1.299 ± 0.053 and 1.385 ± 0.053 x 10⁵ cell/ml, respectively. The milk somatic cell counts of Jersey crossbred cows was found highly significant (p<0.01) with season and stage of lactation while non-significant (p>0.01) with parities. Non genetic factors such as season and stage of lactation affect the SCC.