STUDY OF LACTATION CURVE IN HOLSTEIN FRIESIAN CATTLE ON AN ORGANIZED FARM
Ashish C. Patel & P.H.Vataliya
Date : 2011-12-17 Volume : 3

The production performance from 213 cows maintained at H.F Project, Anand Agricultural University, Anand over a period from 1992-2007 were studied. The gamma function was used to fit lactation curve for first to fifth parity in Holstein Friesian cows and the lactation curves were fitted based on daily milk production up to 43 weeks (300 days). The coefficient of determination (R2) for gamma function of lactation curve was observe to be higher in all lactations indicating that the gamma function provided the best fit for lactation curve. 1324127910.php