泌乳期日粮添加N-氨甲酰谷氨酸对经产母猪和哺乳仔猪的影响

发布时间：2018-08-10 18:59

【摘要】：本试验旨在研究泌乳期日粮添加N-氨甲酰谷氨酸(NCG)对经产母猪泌乳性能、血浆部分氨基酸和免疫指标及仔猪生长性能的影响。试验选取28头健康二元杂交母猪(3~4胎),随机分为2组,每组14头,每头母猪为1个重复。从产前12 d开始分别饲喂基础日粮(对照组)和0.08%NCG日粮(NCG组)至产后第22天(仔猪断奶)。统计哺乳仔猪的生长指标,并采集母猪分娩后第10天静脉血液样品以测定血浆部分氨基酸浓度和血液生化指标。结果表明:与对照组相比,NCG组哺乳期仔猪日增重、断奶个体重和断奶窝重分别提高40 g、0.93 kg和11.14 kg(P0.05),断奶窝仔数差异不显著(P0.05),母猪的泌乳量显著增加(P0.05);NCG组母猪产后第10天血浆精氨酸和脯氨酸浓度均显著提高(P0.05),鸟氨酸、赖氨酸、组氨酸浓度和血氨浓度差异不显著(P0.05),血浆尿素氮浓度显著减低(P0.05);NCG组母猪血清Ig M、Ig G水平和白蛋白浓度显著升高(P0.05),总蛋白浓度差异不显著(P0.05)。结果提示,日粮添加NCG可提高泌乳母猪的泌乳性能及血浆精氨酸和脯氨酸水平,降低母猪血浆尿素氮的浓度,改善母猪的免疫机能,并提高哺乳仔猪的生长性能。
[Abstract]:The purpose of this study was to study the effects of N-carbamyl glutamate (NCG) supplementation on lactating performance, plasma amino acids and immune indexes and growth performance of piglets in lactating period. A total of 28 healthy crossbred sows were randomly divided into 2 groups, 14 in each group and 1 in each sow. The basal diet (control group) and 0.08%NCG diet (NCG group) were fed from the 12th day before delivery to the 22nd day postpartum (weaning piglets). The growth indexes of suckling piglets were counted and the venous blood samples were collected on the 10th day after delivery to determine the concentration of some amino acids in plasma and the biochemical indexes of blood. The results showed that compared with the control group, the daily gain of piglets in the lactation period of NCG group was higher than that in the control group. The weaning weight and weaning litter weight increased by 0.93 kg and 11.14 kg (P0.05), respectively. There was no significant difference in weaning litter size (P0.05), but the lactating amount of sows increased significantly (P0.05). The plasma arginine and proline concentrations in NCG group were significantly increased on the 10th day postpartum (P0.05), ornithine, lysine, and proline were significantly increased (P0.05). There was no significant difference in the concentration of histidine and blood ammonia (P0.05), but the concentration of plasma urea nitrogen was significantly decreased (P0.05). The serum levels of IgG and albumin in NCG group were significantly increased (P0.05), while the concentration of total protein was not significantly different (P0.05). The results showed that dietary supplementation of NCG could improve lactation performance and plasma arginine and proline levels, decrease plasma urea nitrogen concentration, improve immune function of sows and improve growth performance of lactating piglets.
【作者单位】：亚太兴牧(北京)科技有限公司;林州亚太兴牧科技有限公司;国家饲料工程技术研究中心;
【基金】：资助项目:饲用N-氨甲酰谷氨酸关键技术研究与产业化(2016104)
【分类号】：S828.5

【相似文献】