动物营养学报2011，Vol.23Issue(8)：1351-1360,10.DOI:10.3969/j.issn.1006-267x.2011.08.014
饲粮添加L-精氨酸或N-氨甲酰谷氨酸对感染PRRSV妊娠母猪繁殖性能及免疫功能的影响
Effects of Dietary L-arginine or N-carbamylglutamate Supplementation on Reproductive Performance and Immune Function of PRRSV-infected Pregnant Sows
杨平 1吴德 1车炼强 1方正锋 1林燕 1谯仕彦 2李勇 3曾毅 3苏祥3
作者信息
- 1. 四川农业大学动物营养研究所,动物抗病营养教育部重点实验室,雅安625014
- 2. 中国农业大学国家饲料工程技术研究中心,北京100193
- 3. 广西商大科技有限公司,南宁530105
- 折叠
摘要
Abstract
The study was conducted to investigate the effects of dietary L-arginine (Arg) or N-carbamylgluta-mate (NCG) supplementation on reproductive performance and immune function of porcine productive and respiratory syndrome virus (PRRSV) -infected pregnant sows. At day 30 of gestation, sixty Yorkshire x Land-race multiparous sows with PRRSV infection were selected and randomly assigned into three groups with 20 pigs in each group. Sows in the control group were fed the diet containing 1.7% alanine, and the others in two experimental groups were fed the diets supplemented with 1. 0% L-Arg or 0. 1% NCG. Sows were fed the control diet from day 91 to 114 of gestation. Blood samples were collected after the morning feed for 2 h at day 30, 90 and 110 of gestation. Compared with the control group, 1.0% L-Arg supplementation increased the number of piglets born alive by 0. 89 (P < 0. 05), and live Utter birth weight of piglets by 1. 02 kg (P > 0.05); 0.1% NCG supplementation increased the number of piglets born alive by 0.33 (P > 0. 05); serum levels of IgM, IgG and PRRSV-Ab from 1.0% L-Arg or0. 1% NCG supplementation groups were significantly higher than those from the control group at day 90 of gestation (P <0. 05), and plasma concentration of urea was significantly lower than that from the control group (P <0. 05); 1.0% L-Arg supplementation increased plasma concentrations of methionine, arginine, ornithine and proline at day 90 of gestation, and serum level of IgG at day 110 of gestation compared to the control group (P <0.05); plasma concentrations of methionine, arginine, ornithine and proline from the 1.0% L-Arg supplementation group were higher than those from the control group at day 90 of gestation (P <0.05). However, all of the measured indices did not differ between the 1.0% L-Arg and 0.1% NCG supplementation groups (P >0.05), but plasma concentrations of methionine, arginine and ornithine from the 1.0% L-Arg supplementation group were significantly higher than those from the 0.1 % NCG supplementation group at day 90 of gestation ( P <0.05). The results of this study indicate that dietary L-Arg or NCG supplementation can improve the reproductive performance of pregnant sows by improving the utilization of amino acids and immune function. [Chinese Journal of Animal Nutrition, 2011, 23(8) :1351-1360]关键词
L-精氨酸/NCG/PRRSV/妊娠母猪/繁殖性能/免疫Key words
L-Arg/ NCG/ PRRSV/ pregnant sows/ reproductive performance/ immune分类
农业科技引用本文复制引用
杨平,吴德,车炼强,方正锋,林燕,谯仕彦,李勇,曾毅,苏祥..饲粮添加L-精氨酸或N-氨甲酰谷氨酸对感染PRRSV妊娠母猪繁殖性能及免疫功能的影响[J].动物营养学报,2011,23(8):1351-1360,10.
