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25-OH-VD_3和植酸酶对肉鸡生长性能及血清生化指标的影响 被引量:7

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摘要 研究旨在探讨植酸酶与25-OH-VD3配合使用对肉鸡生长性能及血清生化指标的影响。试验选取岭南黄羽肉鸡780只,集中育雏7日之后,随机分为5个处理,每个处理6个重复,每重复26只。5个处理分别为:正对照组、负对照组、负对照组+500 U/kg植酸酶、负对照组+70μg/kg 25-OH-VD3、负对照组+500 U/kg植酸酶+70μg/kg 25-OH-VD3。其中负对照组钙、磷水平分别比正对照组降低0.20%、0.12%。饲养试验分为三个阶段:8~21 d、22~36 d、37~58 d。统计各阶段肉鸡的始重、末重、平均日增重、平均日采食量和耗料增重比等生产性能。21、36、58 d时,每个重复挑取2只试验鸡屠宰,采集血清用于测定血钙、血磷和血清碱性磷酸酶(ALP)。结果表明:添加500 U/kg的植酸酶,其各期平均日增重、料重比都好于负对照组(P〉0.05);在低钙、磷水平肉鸡日粮添加70μg/kg 25-OH-VD3对不同阶段的肉鸡生产性能均有一定程度的提高,尤其是22~36日龄肉鸡的平均日增重显著高于正、负对照组(P〈0.05);但是,在低钙磷日粮配合使用植酸酶和25-OH-VD3未呈现出加和效应。
出处 《饲料工业》 北大核心 2011年第23期20-24,共5页 Feed Industry
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参考文献24

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