畜牧兽医学报2011，Vol.42Issue(11)：1550-1555,6.
妊娠后期日粮中添加不同水平N-氨甲酰谷氨酸对母猪繁殖性能的影响
Effects of Different Dietary N-carbamylglutamate Supplementation on the Reproductive Performance of Sows during Late Pregnancy
摘要
Abstract
This study was conducted to investigate the effects and potential mechanisms of dietary N-carbamylglutamate (NCG) supplementation during late gestation on the reproductive performance of sows. Thirty-two Landrace × Large White sows on d 80 of gestation were assigned randomly to 4 groups (control group and experimental group 1, 2, 3), 8 replicates in each group. Sows in the control group were fed with basic diet, and those in the experimental groups were fed with basic diet supplemented with 0. 04%, 0. 08% and 0. 12% NCG. Blood samples were obtained on d 110 of gestation to examine the plasma concentration of free amino acids, NO, NOS, hormones and biochemical indices. The results showed that supplementation with 0. 08% NCG increased the number of piglets born alive by 11. 75% (10. 75 vs. 9. 62, 0. 05<P<0.1) and live litter birth weight by 13. 23% (16. 52 kg vs. 14. 59 kg,P<0. 05), decreased piglets born dead per litter by 57. 14% (0. 75 vs. 1. 75,P<0. 05) and plasma urea nitrogen concentration compared with the control group, and increased plasma concentration of arginine, NO, NOS, growth hormone and Zn+ too (F<0. 05). 0. 04% and 0. 12% NCG enhanced the reproductive performance of sows. The result suggest that dietary NCG supplementation could enhance reproductive performance of sows, and the potential mechanisms is that the supplemented NCG increases endogenous arginine synthesis in sows, so as to improve intrauterine environment and fetal nutrition, and guarantee fetus survival and growth.关键词
精氨酸/N-氨甲酰谷氨酸/母猪/繁殖性能Key words
arginine/ N-carbamylglutamate/ sow/ reproductive performance分类
农业科技引用本文复制引用
刘星达,吴信,印遇龙,刘雅倩,杨焕胜,李铁军,黄瑞林..妊娠后期日粮中添加不同水平N-氨甲酰谷氨酸对母猪繁殖性能的影响[J].畜牧兽医学报,2011,42(11):1550-1555,6.基金项目
国家自然科学基金项目(31101730 （）
31110103909) （）
中国科学院知识创新重要方向项目(KSCX2-YW-N-051) （KSCX2-YW-N-051）
国家973项目(2009CB118806) （2009CB118806）
