添加松针粉对肉鸡营养物质代谢率的影响

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

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)。

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 m ）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 ,group Ⅱ and 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、Ⅲ ,were 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.