日粮中添加柠檬酸对三元杂交仔猪生长性能的影响  

Effect of dietary citric acid on the growth performance of crossbred piglets

作　　者：孙丹丹 蔡英华[2] 李涛 晏志勋[2,3] 于雷[2] 周应芳 

机构地区：[1]广州立达尔生物科技股份有限公司,广东广州510663 [2]中国动物疫病预防控制中心,北京100000 [3]北京农学院动物科学技术学院,北京102206

出　　处：《饲料工业》2014年第4期18-21,共4页Feed Industry

摘　　要：饲养断奶仔猪时添加一定量柠檬酸可降低仔猪胃内pH值,抑制腹泻,提高平均日增重,这种方法已得到了较为普遍的应用,但是对于添加多少柠檬酸为最佳的争论不一。试验研究了柠檬酸添加量对仔猪生长性能的影响,以选出最适合三元杂交仔猪的柠檬酸添加量。选取分娩日期相同、初生重相近的杜洛克×长白×约克夏三元杂交28 d断奶仔猪80头,随机分为5组,每组16头,对照组仔猪饲喂基础日粮,试验组仔猪在日粮中分别添加0.5%、1%、2%、4%的柠檬酸,试验期为4周(28 d)。结果表明,添加柠檬酸的各组的平均日增重比对照组高,饲料利用率和经济效益均有提高,且试验组仔猪健康状况良好,其中2%的添加量增加经济效益最高。2%的柠檬酸添加量可作为首选添加比例。Supplementation of a certain amount citric acid to diet has positive eft）el on reducing gas- livery date, similar birth weight were randomly divided into five groups. The control group was fed with the basic diet, the four treatment groups were supplemented with 0.5%, 1%, 2%, and 4c./c citric acid in diets, respectively. The experiment lasted for 4 weeks （28 d）. Results suggested that citric acid better health comiition than the control group.the 2% citric acid level produced the highest benefit and could he the first choice in diet.

关 键 词：柠檬酸 仔猪 平均日增重 

分 类 号：S816.7[农业科学—饲料科学]