动物营养学报 >

2016 , Vol. 28 >Issue 7: 2132 - 2139

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.07.018

饲料营养 Feed Science and Technology

真菌产与细菌产木聚糖酶对黄羽肉鸡生长性能、小肠绒毛形态和血液生化指标影响的比较

  • 陈凤鸣 ,
  • 陈清华 ,
  • 王雄 ,
  • 丁增辉
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  • 湖南农业大学动物科学技术学院, 长沙 410128

收稿日期: 2016-01-21

  网络出版日期: 2016-07-28

基金资助

“十二五”农村领域国家科技计划课题——新型饲料用酶制剂创制与应用及安全高效饲料添加剂创制与应用（2013BAD10B00）；湖南农业大学技术合作项目——酶制剂应用效果评估技术体系的研究（13118）

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Comparison of Effects of Xylanase Production by Fungus and Bacteria on Growth Performance, Small Intestine Morphology and Some Blood Biochemical Indices of Yellow-Feathered Broilers

  • CHEN Fengming ,
  • CHEN Qinghua ,
  • WANG Xiong ,
  • DING Zenghui
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  • College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China

Received date: 2016-01-21

  Online published: 2016-07-28

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摘要

本文旨在探讨2种木聚糖酶对黄羽肉鸡生长性能、消化器官发育、小肠绒毛形态和血液生化指标的影响。将1日龄健康黄羽肉鸡540羽随机分成3组，每组6个重复，每重复30羽。对照组饲喂玉米-小麦-豆粕型基础饲粮，试验A组、B组分别饲喂基础饲粮+200 g/t真菌产木聚糖酶、基础饲粮+200 g/t细菌产木聚糖酶。试验期42 d。结果显示：与对照组相比，1）试验组平均日增重显著提高（P<0.05），料重比均有一定程度的降低，其中试验A组显著降低（P<0.05）；2）试验组血清葡萄糖含量及碱性磷酸酶和肌酸激酶活性显著提高（P<0.05），血清中甘油三脂、尿素氮含量显著降低（P<0.05）；3）试验组腺胃和胰腺相对重量显著降低（P<0.05）；4）试验A组、B组空肠绒毛高度分别提高了14.81%和11.04%（P<0.05），空肠绒毛高度/隐窝深度值分别提高了16.61%和12.70%（P<0.05）。由此可知，在黄羽肉鸡饲粮中添加200 g/t真菌或细菌产木聚糖酶，均能改善小肠绒毛发育和机体的免疫力，提高生长性能，且2种酶之间效果差异不显著。

关键词： 木聚糖酶; 小麦型饲粮; 黄羽肉鸡; 小肠绒毛

本文引用格式

陈凤鸣 , 陈清华 , 王雄 , 丁增辉 . 真菌产与细菌产木聚糖酶对黄羽肉鸡生长性能、小肠绒毛形态和血液生化指标影响的比较[J]. 动物营养学报, 2016 , 28(7) : 2132 -2139 . DOI: 10.3969/j.issn.1006-267x.2016.07.018

Abstract

This article was aimed to discuss the effects of two kinds of xylanase on growth performance, digestive organ development, small intestine morphology and blood biochemical indices of yellow-feathered broilers. A total of 540 one-day-old healthy yellow-feathered broilers were randomly divided into 3 groups, and each group had 6 replicates of 30 broilers each. The broilers in control group were fed a corn-wheat-soybean basal diet, and in experimental groups A and B were fed basal diets supplemented with 200 g/t xylanase production by fungus and bacteria, respectively. The experiment lasted for 42 d. The results showed as follows: compared with the control group, 1) the average daily gain in experimental groups was significantly increased (P<0.05), feed to gain ratio had some decrease wherein experimental group A was significantly decreased (P<0.05). 2) Serum glucose content, activities of alkaline phosphatase enzyme and creatine kinase enzyme in experimental groups were significantly increased (P<0.05), whereas, contents of serum triglyceride and urea nitrogen were significantly decreased (P<0.05). 3) The relative weight of proventriculus and pancreas in experimental groups was significantly reduced (P<0.05). 4)In addition, villus height in experimental groups A and B was increased by 14.81% and 11.04% (P<0.05), as well as the villus height to crypt depth ratio was significantly improved by 16.61% and 12.70% (P<0.05). The results indicate that 200 g/t xylanase production by fungus or bacteria supplementation in diet can enhance small intestine morphology and immune ability and improve the growth performance of yellow-feathered broilers, and there are no significant difference between them.

Key words： xylanase; wheat based diets; yellow-feathered broilers; small intestinal villus

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