Comparative Efficacy of Urea and Slow-Release Non-Protein Nitrogen on Performance of Nili-Ravi Buffalo Calves (original) (raw)

Shortage of feed for animals is becoming a serious problem. In the wake of scarcity of adequate feed, the buffalo calves are being fed feed residues or low protein feeds which adversely affect the meat quality. Feed quality can be improved by adding NPN sources. The present study was conducted to evaluate the efficacy of urea and slow release non protein nitrogen on the performance of Nili-Ravi buffalo calves. Three groups (A, B, C) of buffalo calves, each containing 5 animals of Nili-Ravi breed fed 1% urea and 1% NPN (Optigen), were used. Feed intake, growth rate, feed efficiency, blood glucose and blood urea nitrogen of male buffalo calves. Maximum feed intake and significant weight gain was observed in group B fed 1% urea (P<0.05) compared with other groups. The blood urea nitrogen of calves in group B was also higher than other groups. No difference was observed in blood glucose and blood urea nitrogen level of all groups (P>0.05). It was concluded that addition of 1% urea in the feed of calves can improve feed intake, feed conversion ratio and daily weight gain more efficiently than other NPN sources (optigen). Moreover, use of urea is more economical for fattening of Nili Ravi buffalo calves.