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Comparative study of intestine length, weight and digestibility on different body weight chickens

机译：不同体重鸡的肠长，体重和消化率的比较研究

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This experiment was conducted to compare the difference of digestibility on different body weight chickens. Twenty-seven (27) 58-week-old New Yangzhou Chickens of three grade sizes (small 2.0 kg, medium 2.5 kg, and large 3.0 kg) were selected and distributed into three groups (Group 1, Group 2, Group 3) of nine birds/group, and each group was represented by three replicates. Nutrient retention ratio was determined by adopting whole gather excretion method. In the end of metabolism experiment, all the birds were killed, and the intestine length and intestine weight were measured. Results showed that, the amount of feed intake and excretion increased along with body weight gain; the feed intake and excretion in group 3 were significantly higher than that in group 1 (P? 0.05). The weightier the intestines, the more was body weight of the birds. The retention ratio of energy, crude fiber and neutral detergent fiber increased with body weight gain, but the differences were not significant (P?> 0.05). It was concluded that there was no correlation between body weight and digestibility.
机译：进行该实验以比较不同体重鸡的消化率的差异。选择二十七（27）只58周龄三级大小的新扬州鸡（小2.0千克，中2.5千克和大3.0千克），并分成三组（第1、2、3组）。每组九只鸟，每组由三个重复代表。采用整粒排泄法测定养分截留率。在新陈代谢实验结束时，杀死所有的家禽，并测量肠的长度和肠的重量。结果表明，随着体重的增加，采食量和排泄量增加。第三组的采食量和排泄量显着高于第一组（P <0.05）。肠道越重，禽的体重就越大。能量，粗纤维和中性洗涤剂纤维的保留率随体重增加而增加，但差异不显着（P≥0.05）。结论是体重与消化率之间没有相关性。

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