Prediction of lifetime milk production on the basis of lactation traits in Phule Triveni crossbred cattle

Abstract

The data on early lactation traits, production efficiency traits of Phule Triveni Cows maintained at the MPKV, Rahuri, Maharashtra from 1978 to 2007 were used to predict lifetime milk production up to third lactation. Set-I consisting of 2 out of 7 for first lactation traits the best equation under multiple egression model explained 50.91% accuracy of prediction in LTP–3. The best equation under Set-II containing 3 out of 11 for first and second lactation traits showed 74.28% accuracy. When only production efficiency traits were incorporated in the prediction equation then the best equation having 3 out of 6 production efficiency traits explained 48.70% accuracy of prediction. The optimum equations under Set-IV including 4 out of 17 traits for LTP–3 lactation explained 88.03% accuracy of prediction. It was observed that the inclusion of production efficiency traits along with first and second lactation traits in an equation showed significant increase in R2 value.