动物营养学报2016，Vol.28Issue(7)：2132-2139,8.DOI:10.3969/j.issn.1006-267x.2016.07.018
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
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
摘要
Abstract
This article was aimed to discuss the effects of two kinds of xylanase on growth performance, diges⁃tive 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 ex⁃perimental groups were significantly increased ( P<0.05) , whereas, contents of serum triglyceride and urea ni⁃trogen were significantly decreased ( P<0.05) . 3) The relative weight of proventriculus and pancreas in experi⁃mental 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 signif⁃icantly 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 im⁃prove the growth performance of yellow⁃feathered broilers, and there are no significant difference between them.关键词
木聚糖酶/小麦型饲粮/黄羽肉鸡/小肠绒毛Key words
xylanase/wheat based diets/yellow-feathered broilers/small intestinal villus分类
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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):2132-2139,8.基金项目
“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 （）
