Modeling Lactation Curve Standards for Test-day Milk Yield in Holstein , Brown Swiss and Simmental Cows

Standard lactations (305 days [d]) of Brown Swiss (BS, n = 54,985), Simmental (SM, n = 114,189) and Holstein (HO, n = 137,703) breeds of cow were analyzed, and their lactation curves were calculated. For the prediction of the milk yield of cows at 305 d and the prediction of lactation – curve standards (LCS), a regression equation system was developed… (More)