摘要
[目的]研究植酸酶对仔猪生长性能和饲料中各种成分消化率的影响。[方法]以40日龄64头杜大长仔猪为试材,将其随机分为4组,试验组分别添加1 0006、00和300 IU/kg的植酸酶,未添加的为对照,采用全收粪法测定饲料中各种成分的消化率。[结果]添加1 000和600 IU/kg植酸酶试验组的平均日增重分别为692和683 g,显著高于对照组和添加量为300 IU/kg的试验组;添加600 IU/kg植酸酶试验组的磷消化率由对照组的52.89%提高到62.78%(P<0.05),而且粗蛋白、灰分和钙的消化率都有显著提高(P<0.05);植酸酶的最适添加量确定为600 IU/kg。[结论]在饲料中添加一定量的植酸酶,能促进仔猪生长,提高日增重和饲料转化率,而且能显著提高饲料中粗蛋白、灰分、钙和磷的消化率。
[Objective] The aimed to study the effects of phytase on the growth performance of piglets and their digestibility in the various components in feed.[Method] The 64 40-day-old DYL piglets were randomly divided into 4 groups with 0,1 000,600 and 300 IU/kg phytase supplementation in feed and the their digestibility in various components in feed were determinded by the method of total feces collection.[Result] The mean daily weight gain in the test groups with 1 000 and 600 IU/kg phytase supplementation were higher than that in CK and the test group with 300 IU/kg phytase supplementation.The digestibility ofphosphorous in the test groups with 600 IU/kg phytase supplementation was increased from 52.89%（CK） to 62.78%（P〈0.05）and that of crude protein,ash and calcium were increased significantly（P〈0.05）.The optimum amount of phyatase addition in feed of piglets was confirmed as 600 IU/kg.[Conclusion] Adding proper amounts of phytase in feed could promote the growth of piglets,increase daily weight gain and feed c
onversion rate.And it also significantly improved the digestibility of crude protein,ash,calcium and phosphorous in feed by piglets.
出处
《安徽农业科学》
CAS
北大核心
2008年第19期8102-8103,共2页
Journal of Anhui Agricultural Sciences
关键词
植酸酶
仔猪
生长性能
消化率
Phytase
Piglet
Growth performance
Digestibility
