蛋氨酸对宫内发育迟缓断奶仔猪血浆生化指标和肠道消化吸收功能的影响

发布时间：2018-04-30 02:41

本文选题：蛋氨酸 + 宫内发育迟缓　；参考：《食品工业科技》2017年19期

【摘要】：目的:研究蛋氨酸对宫内发育迟缓(IUGR)断奶仔猪血浆生化指标和肠道消化吸收功能的调节作用。方法:所有仔猪于21 d龄断奶,30头正常出生体重(NBW)断奶仔猪饲喂基础日粮(NBW-CON组),60头IUGR断奶仔猪随机分成两个处理组,分别饲喂基础日粮(IUGR-CON组)和添加0.12%蛋氨酸的实验日粮(IUGR-MET组),每个处理组6个重复,每个重复5头猪,实验期为28 d。结果:与NBW-CON断奶仔猪相比,IUGR-CON断奶仔猪血浆尿素氮含量显著升高(p0.05),血浆总蛋白和D-木糖含量显著降低(p0.05)。IUGR-CON断奶仔猪粗蛋白和总能表观消化率、空肠食糜胰蛋白酶活性、黏膜碱性磷酸酶和Na+-K+-ATP酶活性均显著降低(p0.05)。与IUGR-CON断奶仔猪相比,IUGR-MET断奶仔猪血浆尿素氮含量显著降低(p0.05),血浆D-木糖含量显著升高(p0.05)。日粮添加0.12%蛋氨酸显著缓解IUGR介导断奶仔猪粗蛋白表观消化率、空肠食糜胰蛋白酶活性和黏膜Na+-K+-ATP酶活性降低(p0.05)。结论:日粮添加0.12%蛋氨酸可降低IUGR断奶仔猪血浆尿素氮含量,并在一定程度上缓解了IUGR对断奶仔猪肠道消化吸收功能的不良影响。
[Abstract]:Objective: to study the effects of methionine on plasma biochemical indexes and intestinal digestion and absorption in weaned piglets with intrauterine growth retardation (IUGR). Methods: 30 normal birth weight weaned piglets were fed with basal diet NBW-CON group and 60 IUGR weaned piglets were randomly divided into two groups. The experimental diets fed with basal diet IUGR-CON) and 0.12% methionine added IUGR-MET were treated with 6 replicates and 5 pigs for 28 days. Results: compared with NBW-CON weaning piglets, the plasma urea nitrogen content increased significantly, the plasma total protein and D-xylose contents significantly decreased the apparent digestibility of crude protein and total energy, and the activity of jejunum chylotrypsin in weaned piglets. The activities of alkaline phosphatase and Na-K-ATPase decreased significantly. Compared with IUGR-CON weaning piglets, plasma urea nitrogen content decreased significantly and plasma D- xylose content increased significantly in IUGR-CON weaned piglets. Dietary supplementation of 0.12% methionine significantly alleviated the apparent protein digestibility, jejunal chylopsin activity and mucosal Na -K ATPase activity of weaned piglets mediated by IUGR. Conclusion: dietary supplementation of 0.12% methionine can reduce plasma urea nitrogen content in IUGR weaned piglets and to some extent alleviate the adverse effects of IUGR on intestinal digestion and absorption in weaned piglets.
【作者单位】：南京农业大学动物科技学院;
【基金】：国家自然科学基金(31572418) 江苏高校优势学科建设工程二期项目
【分类号】：S828.5

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