【摘要】 74头 2 8日龄健康二元杂交断奶仔猪分成 3组 ,用于研究外源性谷氨酰胺 (glutam ine,Gln)和谷氨酸 (glutamate,Glu)对断奶仔猪小肠粘膜形态、结构和功能及骨骼肌中 DNA、RNA合成的影响。结果表明 :与对照组相比 ,添加 1%谷氨酰胺或 1%谷氨酸可防止断奶后 1周内空肠绒毛萎缩 ,减少断奶后 2周内空肠固有膜内未成熟细胞数 ;显著改善断奶后 1周内小肠吸收功能 ,并促进肌肉中 RNA合成。这些结果为利用 Gln、Glu缓解仔猪断奶应激 ,改善生产性能提供了实验基础。更多还原

【Abstract】 Seventy-four piglets were used to investigate the effect of exogenous Glutamine and Glutamate on the intestinal feature,struct ure and active absorption and DNA,RNA concentrations of muscle in early-weaned piglets.The results suggested that:compared with control piglets,glutamine and g lutamate supplementation(1%) prevented intestinal atrophy during the first week postweaning and improved the ability to absorb nutrients of small intestine,as w ell as the RNA concentration in muscle tissue.These results provide an experimen tal basis for use of Glutamine and Glutamate on alleviating the weaning stress a nd improving the growth performance.更多还原