15～30kg烟台黑猪可消化苏氨酸需要量的研究  

Research on Digestion of Threonine Requirement of 15-30 kg of Yantai Black Pig

作　　者：孙朋朋[1] 姜建阳[1] 韩先杰[1] 于光辉[1] 宋春阳[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13期43-48,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项目(SDAIT-06-011-09);山东省良种工程重大项目(2009LZ012-04)

摘　　要：试验旨在研究15～30k烟台黑猪对可消化苏氨酸的需要量。先选取6头体重（15．00±1．31）kg的健康烟台黑阉公猪进行消化试验，获取试验日粮的回肠表观可消化氨基酸数据；然后选择体重（15±1．53）妇的烟台黑生长猪120头，公、母各半。根据前期的试验结果，日粮可消化赖氨酸水平均设定为0．85％，按照日粮表观可消化苏氨酸水平设置0．48％、0．51％、0．54％、0．57％4个水平处理组，每个处理5个重复，每个重复6头猪。平均体重达到30kg左右时试验结束。结果表明：0．51％组试验猪与0．48％、0．54％、0．57％组相比，平均日增重分别提高了28．13％（P〈0.01）、5．13％（P〉0．05）、13．89％（P〈0.01），饲料增重比分别降低了13．02％（P〈0.01）、3．37％（P〉0．05）、8．41％（P〈0.01）；同0．51％组相比，0．48％组、0．57％组平均日采食量分别降低了11．57％、4．96％（P〈0.01）；0．51％组试验猪血清尿素氮含量最低，血清总蛋白含量最高，在血清尿素氮含量及血清总蛋白含量方面，各组间差异均不显著；其他方面，血清游离苏氨酸舍量0．51％组显著高于0．48％组（P〈0.05），总氨基酸含量含0．51％组与0．54％组差畀显著（P〈0.05），其余各处理组间均差畀极显著（P〈0.01）。由试验结果结合回归分析，15～30kg烟台黑生长猪可消化苏氨酸需要量为0.53％。This experiment of this study was to research 15 kg-30 kg Yantai black pigs of digestible threonine requirement. Select 6 head weight （15.00 ± 1.31） kg health Yantai black barrows, digestion experiment, obtain the test diets on apparent ileal digestible amino acid data. Then select the weight （15.00 ±1.53） kg Yantai black 120 growing pigs, half male and half female. According to the test results of the early, dietary digestible lysine （Dig-Lys） level was set to 0.85%, in accordance with the diet apparent digestible threonine level set 0.48%, 0.51%, 0.54%, 0.57%4 level in treatment group, each treatment was divided into 5 replicates, each consisting of 6 pigs. The average weight is 30 kg about the end of the test. The results showed that： compared with 0.51% groups of experimental pigs and 0.48%, 0.54%, 0.57% groups average daily gain were increased by 28.13% （P〈0.01）, 5.13% （P〉0.05）, 13.89% （P〈0.01）, feed to gain ratio were decreased by 13.02% （P〈0.01）, 3.37% （P〉0.05）, 8.41% （P〈0.01）, average daily feed intake, 0.48% group, 0.57% group significantly lower than the 0.51% groups （P〈0.01）. 0.51% groups of piglets serum urea nitrogen content was the lowest, the highest content of serum total protein, compared with 0.48%, 0.54%, 0.57% group and 0.51% group, the serum urea nitrogen content were increased by 30.65%, 9.32%（P〉0.05）, 23.55% （P〉0.05）, serum total protein content decreased 11.97%, 6.63%, 8.29% （P〉0.05）. serum free threonine content of 0. 51% group was significantly higher than that of the 0.48% groups （P〈0.05）, the total content of amino acids containing 0.51% group and the 0.54% group had significant difference （P〈0.05）, the rest of the treatment groups were significant difference （P〈0.01）. The test results with regression analysis, 15 kg-30 kg Yantai black pig growth digestible threonine requirement is 0.53%.

关 键 词：烟台黑猪生长猪 生长性能 可消化苏氨酸 血清游离氨基酸 

分 类 号：S828.5[农业科学—畜牧学]