不同代谢能水平的日粮添加复合酶对蛋鸡产蛋性能及血液生化指标的影响

发布时间：2018-05-11 04:24

本文选题：代谢能 + 复合酶　；参考：《畜牧与饲料科学》2016年11期

【摘要】：旨在探讨不同代谢能水平的日粮中添加复合酶对蛋鸡产蛋性能及血液生化指标的影响。选用1 440只体重和产蛋率相近的300日龄的海兰褐蛋鸡,随机分为6组,试验1组为基础日粮正对照组,试验3、5组分别为基础日粮降低代谢能0.16 MJ/kg和0.33 MJ/kg的负对照组,试验2、4和6组分别为在1、3和5组基础上按每吨全价料400 g的比例添加复合酶的试验组。正式试验期为45 d。试验结束时,测定并比较各组蛋鸡的产蛋性能和血液生化指标。结果表明,试验2组的T淋巴细胞转化率显著高于试验1组(P0.05),但二者的其他产蛋性能和血液生化指标差异均不显著(P0.05);试验4、6组的产蛋性能和血液生化指标与相应的试验3、5组相比均有显著改善(P0.05)。添加复合酶可以提高蛋鸡对饲料的利用率,能够挖掘饲料潜在的营养价值。
[Abstract]:The aim of this study was to investigate the effects of adding compound enzymes in diets with different metabolic energy levels on laying performance and blood biochemical indexes of laying hens. 1,440 Hailan brown laying hens with similar body weight and laying rate were randomly divided into 6 groups. Group 1 was the control group, and group 3 was the negative control group with basal diet reducing metabolic energy 0.16 MJ/kg and 0.33 MJ/kg, respectively. Group 2 and group 6 were treated by adding compound enzyme on the basis of 1 / 3 and 5 groups at the ratio of 400 g / ton. The formal trial period is 45 days. At the end of the experiment, the laying performance and blood biochemical indexes of each group were measured and compared. The results show that The rate of T lymphocyte transformation in group 2 was significantly higher than that in group 1, but there was no significant difference in other egg laying performance and blood biochemical index between group 2 and group 1, and the egg laying performance and blood biochemical index of group 4 and 6 were not significantly different from those of group 3. Compared with the control group, P0.05 was significantly improved. Adding compound enzyme can improve the feed utilization rate of laying hens, and can tap the potential nutritional value of feed.
【作者单位】：沈阳丰美生物技术有限公司;辽宁禾丰牧业股份有限公司;
【基金】：沈阳市农业科技攻关项目(F16-127-3-00)
【分类号】：S831.5

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