Comparison of performance between (50%HF×50%SL) Crossbred and (50%HF×50%L) Crossbred

Abstract

The present study was undertaken to compare productive and reproductive performances between 50% HF × 50% SL crossbred and 50 for (50% HF×50%L) crossbred. The study was conducted at sreepur Upozila of Magura districts in Khulna division, Bangladesh from August, 2016 to November, 2016. A total of 100 dairy cows 50 each for Friesian x Sahiwal and Friesian x indeginious were selected from same farm. The study found that the daily milk yield, male birth weight, female birth weight, male weaning weight, female weaning weight, mature weight from 50%HF×50%SL crossbred are 11.7L, 28.26 kg, 24kg, 109kg, 110kg, 294kg, 321kg respectively. The daily milk yield, birth weight male, birth weight female, weaning weight male, weaning weight female mature weight from 50%HF×50%L crossbred are 6.5L, 23.8kg, 21.94kg, 90kg, 88kg, 191kg, & 289 kg, respectively. The age of sexual maturity maturity & calving interval of 50%HF×50%SL crossbred and 50%HF×50%L crossbred are 622 days & 676 days and 389 days & 397 days respectively. In case of age at first heat, age at first calving, post partum heat period, days open and gestation length of different genotypes were not statistically significant. The overall productive and reproductive performance of (50%F×50%SL) crossbred cows were superior to the (50%F×50%L) crossbred in same dairy farm. The finding of this study may assist farmers and policy makers in making decision for future dairy cow farming and undertaking the genetic improvement program to increase the milk and meat production in Bangladesh.