摘要
试验选用相同胎次母猪的21日龄断奶杜洛克×长白×大约克健康仔猪120头,以栏为单位,依据仔猪栏平均体重(5.27kg±0.63kg)随机分为3组,每组5个重复,每个重复(栏)8头仔猪(公、母各半),分别饲喂对照日粮(基础日粮+2.05%丙氨酸)、精氨酸日粮(基础日粮+0.6%精氨酸)和精氨酸生素日粮(基础日粮+0.09%AAA),试验期为7d,研究了日粮中添加精氨酸和精氨酸生素对断奶仔猪生长性能、器官相对重量和血液生化参数的影响。结果表明,日粮添加0.6%的精氨酸和0.09%的AAA,仔猪的平均日采食量、日增重有显著提高(P<0.05);肝脏、肾脏、脾脏和心脏的重量高于对照组,但差异均不显著(P>0.05);与对照组相比,精氨酸组和精氨酸生素组的血清尿素氮和碱性磷酸酶活性显著降低(P<0.05),其它血液生化参数差异都不显著(P>0.05)。试验结果显示,日粮中添加精氨酸和精氨酸生素有利于缓解早期仔猪断奶应激,提高其生长性能,0.09%的AAA可以有效替代0.6%的精氨酸。
120 crossbred piglets were weaned at 21 d of age and then had free access to diets with 2.05% alanine（the control group）,the control group,upplemented with 0.6% L-arginine（the L-arginine group） or 0.09% arginine activator additive（AAA）,the experiment lasted 7 d.The goal of experiment was to determine the effects of 0.6% L-arginine or 0.09% AAA on growth performance,internal organs weight and serum biochemical parameters.The results showed that ADG,ADFI,feed-weight ratio increased in the L-arginine group（P0.05）,the liver,kidney,spleen and lung weight relative to body weight were lower（P0.05）,and the heart weight were higher（P0.05） in L-arginine group and AAA group than that in the control group（P0.05）.Compared to the control group,serum SUN and ALP were lower in the L-arginine group and the AAA group（P0.05）.These results indicated that supplementation with L-arginine or AAA could release early weaned stresses and improve growth performance of early-weaned piglets,and supplementation with 0.09% AAA could institute 0.6% L-arginine in piglets.
出处
《中国畜牧兽医》
CAS
北大核心
2011年第8期23-26,共4页
China Animal Husbandry & Veterinary Medicine
基金
湖南省高校科学研究项目(10C0245)
关键词
精氨酸
精氨酸生素
断奶仔猪
生长性能
L-arginine
arginine activator additive（AAA）
weanling piglets
growth performance
