贵州香猪蛋白质沉积与代谢规律研究

An investigatron in Protein Deposition and Metabolic Regularity of Guizhou Xiang-pigs

笔者等选用（7．53±0．56）kg从江香猪34头，采用扣除蛋白质等消化能（DEpf）日粮设计和比较屠宰试验研究了贵州香猪蛋白质沉积代谢规律。结果表明，在相同DEpf进食水平下，贵州香猪DCP转化为维持与增重的综合效率为69．51％；维持的DCP需要为1．91W^075；每1kg增重生长的DCP需要，7～16kg体重段为256g、16-25kg体重段为231g。以此建立贵州香猪的DCP需要模型为：DCP（g／d）=2235．0064W^0.75-938．6982W＋0．3065W^e＋5911．9084△W-18419．6420△W^2＋3250154．5557△W^0.6733e-3815．1850（R^2=0．9925，P〈0．01）。

Using the protein - free equalized digested energy （DEpf） design and comparative slaughter trails, an experi- ment on protein deposition and metabolic regularity of Guizhou Xiang - pig breed was carried out in 34 Congjing Xiangpigs （7.53 ±0.56 kg） in the current work. The findings indicated that comprehensive conversion efficiency of DCP to weightgaining and maintenance was 69.51% , and DCP for maintenance requirement was 1.91W^0.75. The DCP requirements per 1 kg weightgaining for 7 - 16 kg or 16 -25 kg body weight grade pigs were 256 g or 231 g, respectively g. The DCP requirement model was set up as ： DCP（g/d） = 2 235. 006 4W^0.75 -- 938. 698 2W ＋ 0. 306 5W° ＋ 5 911. 908 4△ W - 18419.642 0△W^2 ＋3250 154.5557△W^2.6733e -3815.1850 （R^2 =0.9925, P〈0.01）.