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首页> 外文期刊>Poultry Science >The influence of different levels of micronized insoluble fiber on broiler performance and litter moisture.
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The influence of different levels of micronized insoluble fiber on broiler performance and litter moisture.

机译：不同水平的微粉化不溶性纤维对肉鸡生产性能和垫料水分的影响。

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摘要

The effects of different levels of micronized insoluble fiber (MIF) on broiler performance and litter moisture were assessed in 320 one-day-old male broilers (Ross 308). Feed was supplemented with 0, 0.3, 0.4, or 0.5% MIF during both the starter (1 to 14 d) and grower (15 to 42 d) periods. Supplementation of MIF was associated with dose dependent increases in daily BW gain and feed conversion ratio throughout the experimental period (P < 0.01), whereas feed intake was not influenced by MIF concentration. As MIF content increased, the relative weight of digestive organs was not changed (P > 0.05). Supplementation of MIF resulted in dose dependent increases in the ileal villus height:crypt depth ratio and number of goblet cells (P < 0.05), and a dose dependent decrease in litter moisture beginning during the third week (P < 0.01). These findings indicate that inclusion of 0.5% MIF in feed resulted in the greatest improvements in broiler performance, intestinal morphology, and litter moisture.
机译：在320只1日龄雄性肉鸡（Ross 308）中评估了不同水平的微粉化不溶性纤维（MIF）对肉鸡生产性能和垫料水分的影响。在起始期（1至14 d）和生长期（15至42 d）期间，饲料中添加了0、0.3、0.4或0.5％的MIF。在整个实验期间，补充MIF与日增重和饲料转化率的剂量依赖性增加相关（P <0.01），而饲料摄入量不受MIF浓度的影响。随着MIF含量的增加，消化器官的相对重量没有改变（P> 0.05）。补充MIF导致回肠绒毛高度：隐窝深度之比和杯状细胞数量呈剂量依赖性增加（P <0.05），第三周开始其垫料水分呈剂量依赖性下降（P <0.01）。这些发现表明，饲料中添加0.5％MIF可使肉鸡生产性能，肠道形态和垫料水分得到最大改善。

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