家畜生态学报2024，Vol.45Issue(5)：24-29,6.DOI:10.3969/j.issn.1673-1182.2024.05.004
低蛋白质氨基酸平衡饲粮添加谷氨酸对断奶仔猪生长性能、血液抗氧化和免疫指标的影响
Effects of Low-protein Amino Acid Balanced Diet Supplemented with Glutamate on Growth Performance,Blood Antioxidant and Immune Indicators of Weaned Piglets
摘要
Abstract
This study was conducted to investigate the effects of highly reducing dietary crude protein level,balancing essential amino acids and supplementing glutamate on the growth performance,blood antioxidant and immune indicators of weaned piglets.144 healthy crossbred piglets(Duroc× Landrace × Large White)were select-ed and randomly divided into 3 treatments,6 replicates in each treatment and 8 piglets in each replicate.The exper-iment lasted for 16 days.Group Ⅰ was the control group,the dietary CP level was 21.16％;group Ⅱ was fed a low-protein diet with 15.97％dietary CP level,supplemented with essential amino acids(EAA)Lys,Met,Thr,Trp,Val and Ile as required;group Ⅲ was supplemented with glutamate(Glu)on the basis of group Ⅱ.The results showed that the ADG of weaned piglets in group Ⅱ was significantly lower than that in group Ⅰ and group Ⅲ(P＜0.05).The diarrhea rate of piglets in group Ⅱ was significantly lower than that in group Ⅰ(P＜0.05),that of groupⅢ was significantly lower than that of group Ⅱ(P＜0.05)and extremely lower than that of group Ⅱ(P＜0.01).The concentration of plasma total antioxidant capacity(T-AOC)in group Ⅲ was significantly higher than that in groupⅠ and group Ⅱ,respectively(P＜0.05).The concentration of plasma immunoglobulin A(IgA),immunoglobulin G(IgG),immunoglobulin M(IgM)and interleukin-10(IL-10)in group Ⅲ was significantly higher than those in group Ⅰ and group Ⅱ(P＜0.05),the concentration of plasma interleukin-10(IL-10)in group Ⅱ was significantly lower than that in group Ⅰ(P＜0.05).In conclusion,feeding low-protein diet supplemented with essential amino acids and glutamate after weaning could improve growth performance of weaned piglets,reduce diarrhea,enhance antioxidant and immune functions.关键词
谷氨酸/生长性能/血液抗氧化/免疫指标/低蛋白质饲粮/断奶仔猪Key words
glutamate/growth performance/blood antioxidant/immune indicators/low-protein diet/weaned piglet分类
农业科技引用本文复制引用
刘景,方桂友,缪伏荣,叶鼎承,林长光,董志岩..低蛋白质氨基酸平衡饲粮添加谷氨酸对断奶仔猪生长性能、血液抗氧化和免疫指标的影响[J].家畜生态学报,2024,45(5):24-29,6.基金项目
福建省科技计划公益专项(2020R10260011) （2020R10260011）
福建省科技重大专项专题(2021NZ029023-5) （2021NZ029023-5）
