Effects of Dietary Supplementation with L-arginine or N-carbamylglutamate on Reproductive Performance and Immune Function of Pregnant Sows Infected with PRRSV
本文旨在研究饲粮添加L-精氨酸或N-氨甲酰谷氨酸(N-carbamylglutamate,NCG)对感染猪繁殖与呼吸综合征病毒(Porcine reproductive and respiratory syndrome virus, PRRSV)妊娠母猪繁殖性能及免疫功能的影响。选用3-5胎感染PRRSV的母猪(长白×大约克)100头,妊娠第1-29天饲喂相同的对照组饲粮,妊娠第30天,按体况将母猪随机分为5个处理组,每组20头,单栏饲养。其中3个处理组从妊娠第30-90天分别饲喂对照组饲粮,添加1%L-精氨酸和0.1%NCG饲粮,妊娠第91天-分娩饲喂对照组饲粮,另外两个组从妊娠30天-分娩分别饲喂添加1%L-精氨酸和0.1%NCG的饲粮,所有饲粮等氮平衡。分娩时记录窝产仔数、死胎数、木乃伊数、初生个体重,并计算窝重、死亡率和弱仔率。妊娠第30、90和110天早上采食后2h收集母猪血样。采用氨基酸全自动分析仪测定血浆游离氨基酸,全自动生化分析仪测定血浆尿素和总蛋白,硝酸还原酶法测定血清一氧化氮(NO),比色法测定血清一氧化氮合酶活性(TNOS),猪酶联免疫吸附测定法(enzyme-linked immune...
【英文摘要】
The study was conducted to investigate effects of dietary supplementation with L-arginine (Arg) or N-carbamylglutamate (NCG) on reproductive performance and immune function of pregnant sows infected with porcine productive and respiratory syndrome virus (PRRSV). At d 30 of gestation, One hundred Yorkshire x Landrace multiparous sows infected with PRRSV were selected and randomly assigned to five treatment groups, three treatment groups were fed diet supplemented with 1.7% alanine (control diet, n=20),1% L-A...
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