亮氨酸对断奶仔猪血浆游离氨基酸浓度变化的影响  

Effects of leucine on variation of plasma free amino acids concentration in weaning pigs

作　　者：王彬[1] 袁珍虎 季海波[2] 王桂芹[2] 

机构地区：[1]江苏食品药品职业技术学院食品学院,江苏淮安223005 [2]淮安正昌饲料有限公司,江苏淮安223005

出　　处：《饲料工业》2017年第2期8-11,共4页Feed Industry

基　　金：江苏省高校"青蓝工程"项目[苏教师(2016)15号];江苏省淮安市创新能力建设项目[HAP201569]

摘　　要：选取18头(28±2)d日龄的"杜×长×大"三元杂交断奶仔猪(8.36±0.75)kg,采用完全随机试验设计,将试猪分为3个处理,每个处理6个重复,每个重复1头猪,分别饲喂含合成亮氨酸0、0.27%、0.55%的低蛋白(16.90%CP)日粮,研究其对断奶仔猪采食后4 h内血浆游离氨基酸浓度变化的影响。试验结果表明,当断奶仔猪空腹(0 h)和采食后1 h以内,各组间的氨基酸浓度均无显著性变化(P>0.05)。采食后第2 h,中水平和高水平组缬氨酸的浓度显著低于对照组(P<0.05),高水平组异亮氨酸的浓度极显著高于对照组和中水平组(P<0.01),其余氨基酸浓度无显著差异(P>0.05);采食后第3 h,中水平和高水平组缬氨酸和异亮氨酸的浓度极显著低于对照组(P<0.01),精氨酸和赖氨酸的浓度均显著低于对照组(P<0.05),其余氨基酸浓度无显著变化(P>0.05);采食后第4 h,各组氨基酸浓度均无显著差异(P>0.05)。18 healthy three-line crossed（Duroc×Landrace×Yorkshine） pigs [BW=（8.36±0.75） kg] were divided into 3 groups randomly in this experiment to evaluate the effects of leucine on variation of plasma free amino acids concentration in weaning pigs. The experimental pigs were arranged into 3 treatments with each treatment was repeated 6 times with 1 pig. Supplying the pigs with low protein diets contained 0, 0.27%, 0.55% leueine. The results showed： at o and 1 hour after ingestion, there were no significant differences between the three treats（P〉0.05）; at 2 hours after ingestion, addition of 0.27% and 0.55% leucine both could significantly decrease plasma valine concentration（P〈0.05） compared with the control group, addition of 0.55% leucine could highly significantly increase plasma isoleucine concentration compared with the other two groups（P〈0.01）; at 3 hours after ingestion, compared with the control group, addition of 0.27% and 0.55% leucine both could highly significantly decrease plasma valine and isoleucine concentration（P〈0.01） and significantly decrease plasma arginine and lysine concentration（P〈0.05）; at 4 hours after ingestion, there were no significant differences between the three treats again（P〉0.05）.

关 键 词：亮氨酸 断奶仔猪 血浆 游离氨基酸 浓度 变化 

分 类 号：S828[农业科学—畜牧学]