赖氨酸采食量对早期断奶仔猪生长发育及胰腺内分泌机能的影响  

Effect of Lysine Intake on Growth Performance and Pancreatic Endocrine Function of Early Weanling Piglets

作　　者：黄苇[1] 侯水生[1] 赵玲[1] 喻俊英[1] 张子仪[1] 

机构地区：[1]中国农业科学院畜牧研究所,北京100094

出　　处：《畜牧兽医学报》2005年第5期459-463,共5页ACTA VETERINARIA ET ZOOTECHNICA SINICA

基　　金："九五"国家攻关课题(96 003 04 09 02)

摘　　要：将55头21日龄断奶的雄性仔猪随机分为5组,各组仔猪饲喂赖氨酸含量为0.60%、0.80%、1.00%、1.20%和1.40%的试验日粮21 d.42日龄结束饲养试验时进行葡萄糖灌注试验,观察赖氨酸采食量对早期断奶仔猪生长发育和胰腺内分泌的影响.结果表明:早期断奶仔猪体增重与赖氨酸采食量为强正相关,根椐体增重指标,21～42日龄阶段,仔猪的赖氨酸采食量不应低于3.16 g/d,日粮赖氨酸含量不应低于1.40%.赖氨酸严重缺乏(采食量小于1.45 g/d)时,胰岛素的分泌量下降,对高血糖应激的反应能力降低.A one-factorial trial arrangement including five lysine levels(0.60%,0.80%,1.00%,1.20%,1.40%) was conducted to study the effect of lysine intake on growth performance and pancreatic endocrine function of early weanling piglets. Fifty-five 21-day-old male early weanling piglets were allotted randomly to five groups, each of which was fed one of five experimental diets containing different lysine levels for twenty-one days. At the end of the trial, five piglets from each group were infused with glucose solution and blood samples were collected at different time after the infusion. The results of this experiment demonstrated that there was significant positive correlation between lysine intake and daily weight gain in early weanling piglets(P<0.05); according to the growth performance, the lysine requirement of weanling piglet from 21-day to 42-day of age was no less than 3.16 g/day or 1.4% of the diet; the levels of insulin in serum decreased significantly when piglets were fed lysine-deficient diet(P<0.05).

关 键 词：早期断奶仔猪 生长发育 采食量 内分泌机能 胰腺 日粮赖氨酸含量 雄性仔猪 试验日粮 饲养试验 反应能力 体增重 日龄 葡萄糖 正相关 分泌量 胰岛素 高血糖 饲喂 应激 

分 类 号：S828.5[农业科学—畜牧学] S831.5[农业科学—畜牧兽医]