作 者：
江雪梅;吴德;方正锋;谯仕彦;林燕;车炼强
单 位：
中国农业大学动物科技学院;四川农业大学动物营养研究所
关键词：
L-精氨酸;NCG;经产母猪;繁殖性能;血液参数
摘 要：
本试验旨在研究饲粮添加L-精氨酸或N-氨甲酰谷氨酸(N-carbamylglutamate,NCG)对经产母猪繁殖性能及血液参数的影响。选用3~4胎长白×约克杂交母猪120头,随机分为3组,每组40头母猪,每头母猪为1个重复,从配种当天到分娩,分别饲喂含1.7%L-丙氨酸(对照组)、0.1%NCG和1%L-精氨酸盐酸盐的饲粮,测定妊娠母猪的繁殖性能和第0、30、60、90天母猪静脉血血浆氨基酸、总一氧化氮合酶(TNOS)、诱导型一氧化氮合酶(iNOS)、一氧化氮(NO)、尿素和氨浓度。结果显示,与对照组相比,1%L-精氨酸组窝产活仔数提高了1.15头(P<0.05),仔猪初生窝重提高了1.88kg(P<0.05),0.1%NCG组窝产活仔数提高了0.55头,仔猪初生窝重提高了1.39kg(P<0.05),初生个体重提高了70g(P>0.05);1%L-精氨酸组血浆精氨酸和鸟氨酸浓度显著提高(P<0.05),0.1%NCG组妊娠第90天血浆亮氨酸、苯丙氨酸、瓜氨酸和脯氨酸浓度显著提高(P<0.05);1%L-精氨酸组和0.1%NCG组妊娠第30、60、90天血浆NO浓度和0.1%NCG组妊娠第90天血浆TNOS和iNOS浓度显著提高(P<0.05),1%L-精氨酸组妊娠第90天血浆TNOS浓度显著提高(P<0.05);1%L-精氨酸组和0.1%NCG组妊娠第60天血浆尿素浓度显著降低(P<0.05);0.1%NCG组妊娠第90天和1%L-精氨酸组妊娠第60、90天血浆氨浓度均显著降低(P<0.05)。0.1%NCG组和1%L-精氨酸组繁殖性能无显著差异,但前者妊娠第90天血浆脯氨酸浓度显著高于后者(P<0.05),妊娠第30、60、90天血浆精氨酸浓度以及妊娠第60天血浆尿素浓度显著低于后者(P<0.05)。结果提示,饲粮添加L-精氨酸或NCG可提高母猪体循环中部分氨基酸、TNOS、iNOS和NO浓度,降低血浆尿素和氨浓度,改善母猪繁殖性能。
译 名：
Effects of Dietary L-arginine or N-carbamylglutamate on Reproductive Performance and Blood Parameters of Multiparous Sows
作 者：
JIANG Xuemei1 WU De1 FANG Zhengfeng1 QIAO Shiyan2 LIN Yan1 CHE Lianqiang1(1.Key Laboratory for Animal Disease-resistance Nutrition of China Ministry of Education,Sichuan Agricultural University,Ya'an 625014,China;2.National Feed Engineering Technology Research Center,China Agricultural University,Beijing 100193,China)
关键词：
L-arginine;N-carbamylglutamate;multiparous sows;reproductive performance;blood parameters
摘 要：
The study was conducted to investigate the effects of dietary L-arginine(L-Arg) or N-carbamylglutamate(NCG) on reproductive performance and blood parameters of multiparous sows.One hundred and twenty Yorkshire×Landrace multiparous sows(3 or 4 parities) were selected and randomly assigned into three dietary treatments including the control diet with 1.7% alanine(n=40),0.1% NCG diet(n=40) and 1% L-Arg diet(n=40).Parameters of reproductive performance were recorded immediately after farrowing.The concentrations of plasma amino acids,total nitric oxide synthase(TNOS),inducible nitric oxide synthase(iNOS),nitrogen monoxide(NO),urea and ammonia of the sows were determined on d 0,30,60 and 90 of gestation.The results were showed as follows: compared with the control group,1% L-Arg supplementation increased the number of piglets born alive by 1.15(P<0.05) and litter birth weight of all piglets born alive by 1.88 kg(P<0.05);0.1% NCG supplementation increased the litter birth weight of all piglets born alive by 1.39 kg(P<0.05).The concentrations of plasma arginine and ornithine of the sows treated with 1% L-Arg and the concentrations of plasma leucine,phenylalanine,citrulline and proline of the sows treated with 0.1% NCG were significantly higher than those of the control group at d 90 of gestation(P<0.05).The sows in 1% L-Arg group and 0.1% NCG group had higher NO concentrations than that of the control group on d 30,60 and 90 of gestation(P<0.05);the concentrations of plasma TNOS and iNOS of the sows in 0.1% NCG group were higher than those of the control group on d 90 of gestation(P<0.05),and plasma TNOS concentration of the sows in 1% L-Arg group was higher than that of the control group on d 90 of gestation(P<0.05).Both the sows in 1% L-Arg group and 0.1% NCG group had lower plasma urea concentrations than that of the control group on d 60 of gestation(P<0.05).Plasma ammonia concentration of the sows in 1% L-Arg group was lower than that of the control group on d 60 and 90 of gestation(P<0.05);plasma ammonia concentration of the sows in 0.1% NCG group was lower than that of the control group on d 90 of gestation(P<0.05).All of the measured blood parameters did not differ significantly between 1% L-Arg group and 0.1% NCG group(P>0.05),except for the plasma proline concentration of the sows in 0.1% NCG group which was significantly higher than that of 1% L-Arg group on d 90 of gestation(P<0.05);plasma arginine concentrations on d 30,60 and 90 of gestation and plasma urea concentration on d 60 of gestation of the sows in 0.1% NCG group were significantly lower than those of 1% L-Arg group(P<0.05).In conclusion,dietary L-Arg or NCG increases the concentrations of some plasma amino acids,TNOS,iNOS and NO decreases the concentrations of plasma urea and ammonia,and improves the reproductive performance of sows.
