日粮添加苜蓿多糖对育肥猪生长性能、血清生化指标及肌肉氨基酸组成的影响  

The effect of adding alfalfa polysaccharides to feed on the growth performance,serum biochemical indicators,and muscle amino acid composition of fattening pigs

作　　者：王庆文 刘晶 WANG Qingwen;LIU Jing(Guyunhu Street Veterinary Station,Changqing District,Jinan City,Shandong Province,Jinan,Shandong Province 250307,China;Agricultural Comprehensive Service Center,Guyunhu Street,Changqing District,Jinan City,Shandong Province,Jinan,Shandong Province 250307,China)

机构地区：[1]山东省济南市长清区崮云湖街道兽医站,山东济南250307 [2]山东省济南市长清区崮云湖街道农业综合服务中心,山东济南250307

出　　处：《中国饲料》2024年第24期29-32,共4页China Feed

摘　　要：文章旨在探究苜蓿多糖(Alfalfa Polysaccharides,APS)对育肥猪生长性能、血清生化指标及肌肉氨基酸组成的影响。试验选择均重(60.42±1.79)kg的健康长×大二元杂交猪,按照体重及性别原则将144头育肥猪分为对照组、试验I、Ⅱ和Ⅲ组,每组6栏,每栏6头,分别饲喂基础日粮+0、180、360和720 mg/kgAPS的试验日粮。结果表明,添加720 mg/kg的APS组末重比对照组显著提高3.06%(P<0.05),添加720 mg/kg的APS组日增重显著提高6.19%(P<0.05),料肉比显著下降6.39%(P<0.05);未观察到采食量的变化(P>0.05)。补充360和720 mg/kg的APS显著提升了血清总蛋白(TP)和免疫球蛋白G(IgG)含量、总抗氧化能力(T-AOC)(P<0.05),显著下调了肌酐(CREA)、尿素氮(BUN)含量(P<0.05),补充720 mg/kg的APS显著下调了丙二醛(MDA)含量(P<0.05)。补充180~720 mg/kg的APS显著提升丝氨酸和谷氨酸含量(P<0.05),补充360和720 mg/kg的APS显著提升精氨酸、天冬氨酸、半胱氨酸含量(P<0.05),补充180和720 mg/kg的APS显著提升甘氨酸和丙氨酸含量(P<0.05),补充180和360 mg/kg的APS显著提升蛋氨酸含量(P<0.05),补充720 mg/kg的APS显著提升赖氨酸含量(P<0.05)。结论:苜蓿多糖(720 mg/kg)可通过改善育肥猪血清生化指标,改善肌肉氨基酸组成的同时提高猪只生长性能。To investigate the effects of Alfalfa Polysaccharides(APS)on the growth performance,serum biochemical indicators,and muscle amino acid composition of fattening pigs.A healthy long×large binary hybrid pig with uniform weight(60.42±1.79)kg was designed.144 fattening pigs were divided into control group,experimental groups I,Ⅱ,andⅢaccording to weight and gender principles,with 6 pens in each group and 6 pigs in each pen.They were fed with experimental feed containing basic diet+0,180,360,and 720 mg/kg APS,respectively.The final weight of the APS group added with 720 mg/kg was 3.06%higher than the control group(P<0.05),the daily weight gain of the APS group added with 720 mg/kg was 6.19%higher(P<0.05),and the feed to gain ratio decreased by 6.39%(P<0.05);No changes in feed intake were observed(P>0.05).Supplementing with 360 and 720 mg/kg APS significantly increased serum TP and IgG levels,as well as T-AOC capacity(P<0.05),while significantly downregulating CREA and BUN levels(P<0.05).Supplementing with 720 mg/kg APS significantly downregulated MDA levels(P<0.05).Supplementing APS at 180-720 mg/k significantly increased serine and glutamate content(P<0.05),supplementing APS at 360 and 720 mg/kg significantly increased arginine,aspartate,and cysteine content(P<0.05),supplementing APS at 180 and 720 mg/kg significantly increased glycine and alanine content(P<0.05),supplementing APS at 180 and 360 mg/kg significantly increased methionine content(P<0.05),and supplementing APS at 720 mg/kg significantly increased lysine content(P<0.05).Conclusion:Alfalfa polysaccharides(720 mg/kg)improve the serum biochemical indicators of fattening pigs,enhance muscle amino acid composition,and improve growth performance.

关 键 词：苜蓿多糖 育肥猪 生长性能 血清生化指标 氨基酸组成 

分 类 号：S828[农业科学—畜牧学]