添加松针粉对肉鸡营养物质代谢率的影响

选用18日龄肉鸡80羽,随机分为4组,分别为组Ⅰ、组Ⅱ、组Ⅲ、组Ⅳ,其中组Ⅰ、组Ⅱ、组Ⅲ为试验组,组Ⅳ为对照组。每组5个重复,每个重复4羽(♀)。采用单因子随机分组设计,共设4个处理,组Ⅰ为基础饲料+1%松针粉,组Ⅱ为基础饲料+3%松针粉,组Ⅲ为基础饲料+5%松针粉,对照组为基础饲料+抗生素。研究结果表明,干物质表观代谢率组Ⅰ、组Ⅱ与对照组之间无显著性显著(P>0.05),但组Ⅲ干物质表观代谢率显著低于对照组(P<0.05),5%松针粉组干物质代谢率比对照组低5.46%,其余各组间无显著性差异(P>0.05);粗蛋白质日摄入量及日排出量各组间均无显著性差异(P>0.05);粗蛋白质表观代谢率组Ⅰ、组Ⅱ、组Ⅲ显著高于对照组(P<0.05),组Ⅰ、组Ⅱ、组Ⅲ分别比对照组提高了18.34%、23.44%、27.13%;粗脂肪日摄入量组Ⅲ显著高于组Ⅰ和对照组(P<0.05),试验组之间无显著性差异(P<0.05);粗脂肪日排出量组Ⅲ显著高于组Ⅰ、组Ⅱ及对照组(P<0.05),其余各组间无显著性差异(P>0.05);粗脂肪的表观代谢率组Ⅰ、组Ⅱ显著高于对照组(P<0.05),其余各组间无显著性差异(P>0.05),粗脂肪的表观代谢率组Ⅰ、组Ⅱ、组Ⅲ分别比对照组提高了6.86%、9.43%、5.05%;磷的日摄入量、日排出量、表观代谢率各组间无显著性差异(P>0.05)。

Effect of Pine Needle Powder on Metabolic Rate of Nutrition in Broilers

The test has adopted random control design,80 broilers were randomly divided into basal diet + 1% pine needle powder(group Ⅰ) ,basal diet + 3% pine needle powder(group Ⅱ),basal diet+5% pine needle powder(group Ⅲ)and basal diet + Tylosin (control),5 replicates in each group and 4 chickens in each replicate(females). The results showed that apparent metabolizable rate(AMR) of DM were not significantly different in group Ⅰ、groupⅡand control(P>0.05),but apparent metabolizable rate of control were higher significantly than the group Ⅲ(P<0.05),AMR of control was increased by 5.46%,there was not significantly in other group. In terms of CP, apparent metabolizable rate of group Ⅰ、Ⅱ、Ⅲwere higher significantly than the control(P<0.05), apparent metabolizable rate of group Ⅰ、Ⅱ、Ⅲ were increased by 18.34%(P<0.05), 23.44%(P<0.05), 27.13%(P<0.05) respectively. In terms of EE, apparent metabolizable rate of group Ⅰ、Ⅱwere higher significantly than the control(P<0.05), apparent metabolizable rate of group Ⅰ、Ⅱ、Ⅲ were increased by 6.86%(P<0.05), 23.44%(P<0.05), 27.13%(P<0.05) respectively.