Exigências nutricionais de energia e proteína para mantença e ganho de caprinos Canindé em em confinamento

Abstract

The aim of this study was to determine body composition in Caninde kids, energy and protein requirements for maintenance and growth. In the trial 33 Caninde male castrates were used, averaging 15.62 ± 0.87 kg of BW. A group consisted of five kids was slaughtered as baseline. The remaining kids (n=28) were allocated randomly to seven groups with four levels of feed intake. The levels were: ad libitum, 80%, 60% or 40% of the ad libitum intake. A slaughter group contained one kid from each level, and kids were slaughtered when the ad libitum level kid reached 25 kg of BW. The comparative slaughter was used to calculate the requirements. The protein body composition ranged from 177.43 to 166.98 g/EBW (empty BW); fat ranged from 127.92 to 193.46 g/EBW and energy ranged from 2.15 to 2.69 Mcal/kg of EBW. The calculated daily maintenance requirement for NE was 52.64 kcal/kg0.75 of EBW and 1,28 g/kg0.75 of EBW to protein. Net energy requirements for growth ranged from 2.96 to 4.84 Mcal/kg of EBW gain, and net protein requirements for growth ranged from 164.76 to 161.59 g/kg of EBW gain for Caninde kids at 15 and 25 kg of BW.