可乐×大约克后备母猪能量代谢与沉积规律

Energy Metabolism and Deposition Low of Kele×Large Yorkshire Prepubertal Gilts

为给毕节地区内二元后备母猪的科学养殖和制订《毕节高寒山区猪饲养标准》提供技术参数,选用8周龄、体重（18.89±0.61）kg的毕节内二元（可乐×大约克）健康后备母猪19头,进行生长试验和比较屠宰试验。结果表明,20~100 kg体重段消化能（DE）转化为代谢能（ME）的效率为94.82%,维持的代谢能（ME）需要为466.89 kJ/W0.75;20~50 kg、50~100 kg体重段每增重1 kg的代谢能（ME）需要分别为18.80 MJ、28.21 MJ;可乐×大约克后备母猪的能量需要模型：为20~50 kg体重段ME/（MJ/d）=0.467W0.75＋18.80ADG,50~100 kg体重段ME/（MJ/d）=0.467W0.75＋28.21ADG。

In order to provide the technical parameters for raising Kele×Large Yorkshire prepubertal gilts scientifically and establishing the Feeding Standard of Swine in Bijie High-Cold Mountainous Areas,19 Kele×Large Yorkshire prepubertal gilts with eight weeks of age and initial average body weight of（18.89±0.61） kg were selected by using growth assay and comparative slaughter experiment.The results showed that the conversion efficiency of ME to DE was 94.82% at the stage of 20~100kg body weight,ME for maintenance requirement was 466.89 kJ/W0.75,and that for growth requirement of 1kg weight gain was 18.80MJ at the stage of 20~50kg body weight and 28.21MJ at the stage of 50~100kg body weight.Therefore,the energy requirement model was set up as follows： at the stage of 20~50kg body weight： ME（MJ/d）=0.467W0.75＋18.80ADG;at the stage of 50~100kg body weight： ME（MJ/d）=0.467W0.75＋28.21ADG.