不同水平精氨酸生素对断奶仔猪生长性能和血液指标的影响  

Effects of Different Dietary Arginine Activator Additive on Growth Performance and Plasma Biochemical Parameters in Early-weaned Piglets

作　　者：周锡红[1,2] 吴信[1,2] 唐香山[1,2] 高运苓[1,2] 黄瑞林[1] 印遇龙[1] 

机构地区：[1]中国科学院亚热带农业生态研究所农业生态过程重点实验室,湖南省畜禽健康养殖工程技术研究中心,湖南长沙410125 [2]中国科学院研究生院,北京100049

出　　处：《农业现代化研究》2010年第2期237-240,共4页Research of Agricultural Modernization

基　　金：中国科学院知识创新重要方向项目(编号:KSCX2-YW-N-051);国家863项目(编号:2008AA10Z316);国家自然科学基金项目(编号:30901040;30901041;30928018;30828025);国家支撑计划(编号:2007BAQ01047);广东省中国科学院全面战略合作项目(编号:2009B091300043;2009B091300079)

摘　　要：为了研究日粮中添加精氨酸生素(Arginine Activator Additive,AAA)对早期断奶仔猪生长性能、腹泻率和血液指标的影响,本试验选用21日龄体重为6.20±0.31kg的杜×长×大健康仔猪272头,随机分为5组,对照组饲喂基础日粮,试验组在基础日粮的基础上,分别添加0.03%、0.06%、0.09%和0.12%的AAA,试验期为7d。试验结果表明:与对照组相比,各试验组仔猪平均日采食量(ADFI)和日增重(ADG)均有提高的趋势,而料肉比(F/G)则下降;其中,0.09%和0.12%的AAA试验组ADFI、ADG显著提高(P<0.05),而F/G则显著降低(P<0.05);各试验组仔猪腹泻率显著降低(P<0.05);与对照组相比,各试验组血浆精氨酸(Arg)和脯氨酸(Pro)有升高的趋势,AAA添加量为0.09%的试验组Arg含量与对照组差异显著(P<0.05);0.09%和0.12%的AAA试验组总蛋白(TP)、白蛋白(ALB)、胰岛素(INS)、一氧化氮(NO)和总一氧化氮合酶(tNOS)水平均显著高于对照组(P<0.05),而尿氮(BUN)、血氨(AMM)和皮质醇(COR)水平则均低于对照组。试验显示,日粮中添加AAA提高了早期断奶仔猪血浆中精氨酸含量,缓解了仔猪断奶应激,提高了仔猪生长性能。This experiment was conducted to study the effects of AAA on growth performance and plasma parameters in early-weaned piglets. Two hundred and seventy-two crossed-bred （Duroc× Landrace× Yorkshine） piglets （BW=6.20±0.3 1 kg） were randomly assigned to five dietary treatments with 6 replicates. The piglets were fed with the following diets for 7 days： 1 ） NC （Control diet without antibiotics）, 2） Four experimental groups （control diet supplemented with 0.03%, 0.06%, 0.09% and 0.12% AAA）. The results showed that dietary supplemented with 0.09% and 0.12% AAA increased ADFI and ADG （P〈0.05） and decreased F/G （P〈0.05） significantly. There was a significant decrease on diarrhea ratio of all the experimental groups. Compared to the NC, there was an increased trend on plasma Arg and Pro in all the experimental groups, and plasma Arg significantly increased in 0.09% AAA group （P〈0.05）. Compared to the NC, in 0.09% and 0.12% AAA groups plasma TP, ALB, INS, NO and tNOS significantly increased （P〈0.05） and plasma BUN, AMM and COR decreased. These results indicated that supplementation with AAA could increase plasma Arg, alleviate weaning stress and improve growth performance of early-weaned piglets.

关 键 词：断奶仔猪 精氨酸生素 生长性能 生化指标 血浆氨基酸 

分 类 号：S828[农业科学—畜牧学] Q517[农业科学—畜牧兽医]