复合饲料添加剂(DL)对育成期蓝狐消化、代谢的影响

以复合酶制剂为主 ,添加益生素、微量元素等多种饲料添加剂 ,配制成DL复合饲料添加剂 ,将其分为 5种剂量 ( 0 1 %、0 2 %、0 3%、0 4%、0 5 % )添加到基础日粮中 ,分别饲喂 6组 ( 1组对照 )各 1 0只 5 0日龄蓝狐 ,饲喂 1 4d。结果表明 :0 3%DL添加剂显著提高粗蛋白(CP)的表观消化率、代谢率和净蛋白的利用率 (P <0 0 5 ) ,同对照组相比 ,CP的表观消化率提高 1 0 2 8% ,CP的表观代谢率提高 7 42 % ,净蛋白的利用率提高 1 6 92 % ;0 2 %DL添加剂显著提高粗脂肪 (EE)及粗纤维 (CF)的消化率 (P <0 0 5 )与对照组相比 ,EE的消化率提高9 98% ,CF的消化率提高 1 2 0 5 %。各组DL饲料添加剂均能提高蓝狐育成期的采食量 ,其中0 2 %DL添加剂组的采食量最大

Effects of DL Series Supplements on Digestion and Metabolism of Diets of Alopex Lagpus During Growing Phase

Six groups of growing Alopex lagpus with 10 animals in each group were fed a basal diet and basal diet supplemented with DL supplements,which contained compound enzymes,probiotics and trace elements,at 0.1,0.2,0.3,0.4 and 0.5%. The effect of the supplementation on apparent digestion and metabolism of diet were studied.Results showed that 0 3% DL significantly inereased the apparent digetibility and metabolism rate of crude protein and net utilization rate of protein ( P < 0 05);compared with control group,the apparent digetibility of crude protein was increased 10.28%,the apparent metabolism rate of crude protein was increased 7 42% ,the net utilization rate of protein was increased 16 92%.0.2% DL could also increased markedly the digetibility of crude fat and crude fiber ( P <0 05),which was 9.88% and 12.05% higher than the control group, respectively.Feed intakes were significantly increased by all levels of supplementation with 0.2% DL being the highest.