Somatic Cell Pattern and Composition of Milk of Holstein Friesian Cross Bred Cattle

نویسنده

  • G. Kumaresan
چکیده

Holstein Friesian cross bred cow milk samples of different quarters in four stages of lactation were collected from dairy farms in the Namakkal district of Tamil Nadu and analyzed for composition and somatic cell count (SCC). No significant difference in the SCC was observed between quarters within the lactation stage. Count was significant between stages of lactation after the 2 nd stage. While data obtained in the last stage of lactation had the highest SCC. Significant (P<0.001) increase in SCC was estimated with advancing parity. The milk yield, SNF per cent tended to decrease, while the fat per cent and ash content tended to increase significantly with increase in the SCC as the lactation advances. It was concluded that the SCC can be used as a reliable indicator of udder health and milk composition for selecting the Holstein Friesian cows for milk production. When the SCC exceeds 5.69 log10 units per ml need for a course of antibiotic therapy should be ruled out to save the health of the udder.

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تاریخ انتشار 2013