FEED SCIENCE AND TECHNOLOGY

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

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.

Cite this article

CHEN Fengming , CHEN Qinghua , WANG Xiong , DING Zenghui . 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[J]. Chinese Journal of Animal Nutrition, 2016 , 28(7) : 2132 -2139 . DOI: 10.3969/j.issn.1006-267x.2016.07.018

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