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Effects of plane of nutrition on growth, feed intake, digestibility and nitrogen balance in Murrah graded male buffalo (Bubalus bubalis) calves in Nepal.

An experiment was conducted using 17 male buffalo calves to assess the effects of plane of nutrition on dry matter intake (DMI), daily gain (DG), body size measurement, apparent digestibility and nitrogen (N) balance. To attain 250kg BW, the calves were allocated into three groups: H, L-H and L, receiving the concentrate at 1.50% of BW, 0.75% of BW until 190kg BW and 1.50% thereafter and 0.75% of BW, respectively. The animals had ad libitum access to urea-treated rice straw (UTRS). The DMI of UTRS through the experiment was higher in L and L-H than H, showing 3.52, 2.90 and 2.62kg/day, respectively (P<0.01), but the total DMI did not differ among the treatment groups. The DG throughout the experiment was high in the order of H, L-H and L, showing 0.72, 0.57 and 0.45kg, respectively (P<0.01). The digestibility of DM, organic matter, crude protein, neutral and acid detergent fiber and N retention were higher in H than in L (P<0.05). The findings of this study thus revealed the greater DG has an advantage of shortening the growing period around 3months, and consequently increasing benefit in fattening of buffalo calves in Nepal.