15～30kg烟台黑猪可消化赖氨酸需要量的研究  

Digestible Lysine Requirements for Yantai Black Pigs in 15-30 kg Growth Stage

作　　者：远德龙[1] 姜建阳[1] 韩先杰[1] 于光辉[1] 宋春阳[1] 肖倩倩[1] 

机构地区：[1]青岛农业大学动物科技学院,山东青岛266109

出　　处：《中国畜牧杂志》2015年第7期59-64,共6页Chinese Journal of Animal Science

基　　金：山东省现代农业产业技术体系生猪创新团队资助(SDAIT-06-022-09);山东省良种工程重大项目(2009LZ012-04)

摘　　要：试验旨在研究15-30kg烟台黑猪对可消化赖氨酸的需要量。选取6头体重（25．00±1．25）kg的健康烟台黑生长猪阉公猪，用玉米、花生粕、麸皮等原料配制成试验日粮进行消化试验，获取试验日粮的回肠表观可消化氨基酸数据。选择体重（15．00±1．25）kg的烟台黑生长猪120头，公、母各半，采用消化试验测定结果，按照日粮可消化赖氨酸水平（0．60％、0．70％、0．80％、0．90％）设4个组，每个组分为6个重复，体重达30kg左右时试验结束。结果表明：0．80％组试验猪饲料增重比（F／G）较0．60％、0．70％极显著降低了12．80％、10．39％（P〈0．01），较0．90％组显著降低了4．56％（P〉0．05）；平均日增重（ADG）分别提高了46．43％（P〈0．01）、20．59％（P〈0．01）、5．13％（P〉0．05）；平均日采食量（ADFI）分别提高了28．72％（P〈O．01）、10．OO％（P〈O．01）、3．42％（P〉0．05），ADG、ADFI、F／G随日粮可消化赖氨酸水平增加呈显著二次曲线变化；0．60％、0．70％和0．90％组血清尿素氮含量较0．80％组升高了27．67％（P〈0．05）、21．90％（P〉0．05）和17．29％（P〉0．05）；0．60％、0．70％和0．90％组血清总蛋白含量较0．80％组降低了13．60％（P〈0．05）、7．76％（P〈0．05）和4．86（P〉0．05）；0．80％组血清中游离赖氨酸、总氨基酸浓度显著高于0．60％组（P〈0．05），而两组蛋氨酸、苏氨酸等氨基酸的浓度差异不显著（P〉0．05）。由试验结果结合回归分析可知，烟台黑猪15-30kg生长阶段可消化赖氨酸需要量为0．85％。The study was conducted to determine the digestible lysine requirements for early growth stage of Yantai black pigs （15-30 kg）. Firstly, six healthy Yantai black barrows with an average weight of （25.00±1.25） kg were selected. The diet was formulated with raw materials such as corn, peanut meal, bran mixture, and was used to determine the ileum apparent amino acid digestibility of feeds. Secondly, a total of 120 Yantai black growing pigs （half barrows and half sows） with an average initial body weight of （15.00±1.25） kg were used in this test. According to the results of previous tests and the dietary digestible lysine levels, the pigs were divided into 4 groups： 0.60%, 0.70%, 0.80% and 0.90%, and each group had 6 replicates with 5 piglets. The experiment would be finished when the pigs＇ weight reached about 30 kg. The results showed that for experimental pigs, compared with 0.60%, 0.70% and 0.90% groups, the F/G of 0.80% group decreased by 12.80% （P〈0.01）, 10.39% （P〈0.01）and 4.56% （P〉0.05） respectively. The ADG of 0.80% group increased by 46.43% （P〈0.01）, 20.59% （P〈0.01）and 5.13% （P〉0.05）. The ADFI of 0.80% group increased by 28.72% （P〈0.01）, 10.00% （P〈0.01）and 3.42% （P〉0.05）. The ADG, ADFI and F/G showed a significant quadratic curve change with the inctease feed digestible lysine;0.80% group had the lowest UN content and the highest TP content. Compared with 0.60%, 0.70% and 0.90% groups, the UN of 0.80% group increased by 27.67% （P〈0.05）, 21.90% （P〉0.05）and 17.29% （P〉0.05）; the TP of 0.80% group decreased by 13.60% （P〈0.05）, 7.76% （P〈0.05）and 4.86% （P〉0.05） respectively; The content of free lysine, arginine, serine, essential, non-essential and total amino acid showed a significant difference among treatment groups （P〈0.05）. The rest of the serum free amino acid content in different groups was not significant （P〉0.05）. It can be concluded that the digestible lysine requirement of Yantai

关 键 词：生长性能 可消化赖氨酸 血清游离氨基酸 烟台黑猪 

分 类 号：S828.5[农业科学—畜牧学]