枣粉替代日粮中玉米对绵羊生长性能和瘤胃发酵参数的影响

发布时间：2018-03-03 10:21

  本文选题：粉　切入点：育肥绵羊　出处：《中国畜牧杂志》2017年03期 　论文类型：期刊论文

【摘要】：本试验旨在研究枣粉替代日粮中玉米对绵羊生长性能和瘤胃发酵参数的影响。试验一:选用健康、体重和年龄相近的杜×寒杂交公羔24只,随机分为4组,每组6只,分别饲喂枣粉添加量为0%(对照组)、2.5%(Ⅰ组)、5%(Ⅱ组)、10%(Ⅲ组)的饲料,枣粉等比例替代基础日粮中玉米;试验二:选择体况良好、体重相近的安装永久性瘤胃瘘管杜×寒杂交羯羊12只,随机分为4组,每组3只,饲喂日粮同试验一。结果表明:与对照组相比,5%组显著提高了绵羊平均日增重和显著降低了饲料增重比(P0.05);除2 h外,其余各时间点Ⅱ组瘤胃液p H显著低于对照组(P0.05),且Ⅱ组变化幅度最小;Ⅱ组乙酸/丙酸在饲喂后各个时间点均显著高于对照组(P0.05),而日粮添加枣粉组间差异不显著(P0.05);在0 h和7 h,Ⅰ组和Ⅱ组的总挥发性脂肪酸浓度显著高于对照组(P0.05),而Ⅲ组在饲喂前0 h总挥发性脂肪酸显著高于对照组(P0.05)。综合而言,日粮枣粉以5%替代玉米在绵羊上应用效果最佳。
[Abstract]:The purpose of this study was to study the effect of maize on growth performance and rumen fermentation parameters of sheep in the diet of jujube powder. Experiment 1: 24 male lambs of du 脳 Cold hybrid with similar health, body weight and age were randomly divided into 4 groups with 6 lambs in each group. Jujube powder was added to the basal diet in the proportion of feed and jujube powder to replace corn in the basal diet. Experiment 2: the selection was in good condition, and the diet of group 鈪，

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