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复合酶制剂对肉鸭生长性能及营养物质消化率的影响 被引量:6

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摘要 试验旨在研究在玉米-杂粕型肉鸭低能、低可消化氨基酸颗粒饲料中添加复合酶制剂对肉鸭11~41日龄阶段生产性能及营养物质消化率的影响。试验分3组:(A)正常日粮组(正对照);(B)低能、低可消化氨基酸日粮组(负对照组);(C)负对照组+复合酶制剂(T-Flex酶)(试验组)。每组6个重复,每重组40只鸭(全公苗)。在25日龄时每组选择8只体重较为一致的肉鸭(共24只)进行代谢试验,以测定营养物质消化率。试验结果如下:①试验肉鸭末重、体增重和日增重各处理间均无显著差异(P>0.05),但B组的肉鸭末重、体增重和日增重都比其余3组低;料重比B组显著高于C组(P<0.05),其余各组间无显著差异。表明降低能量后,肉鸭生长速度受到影响,尤其是料重比水平升高显著。添加复合酶制剂组(C组)生长速度与A组(正对照组)相当,料重比还稍低些,表明复合酶制剂具有促生长作用效果。②蛋白质消化率A、C组显著高于B组(P<0.05);能量消化率A组显著高于B,其余各组间差异不显著;粗纤维消化率C组显著高于B组(P<0.05),其余各组间差异不显著。添加酶制剂后C组表观代谢能得到有效的提高,提高幅度为0.201MJ/kg饲料。
出处 《饲料工业》 北大核心 2009年第12期24-27,共4页 Feed Industry
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