Effects of Dietary Yeast Oligosaccharides Supplementation on Production Performance, Egg Quality, Serum Biochemical Indices and Intestine Health of Laying Hens under High Density Cultivation

WANG Yu, LI Enkai, MENG Yanmiao, DING Xiangwen, YANG Jiachang, HU Xiyi, ZHANG Bo, SONG Zhigang

doi:10.3969/j.issn.1006-267x.2017.03.037

2017 , Vol. 29 >Issue 3: 1030 - 1038

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.03.037

Molecular Nutrition

Effects of Dietary Yeast Oligosaccharides Supplementation on Production Performance, Egg Quality, Serum Biochemical Indices and Intestine Health of Laying Hens under High Density Cultivation

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1. College of Animal Science and Technology, Shandong Agricultural University, Tai'an 271018, China;
2. Animal Husbandry Bureau of Xinji, Xinji 052360, China;
3. Phileo-Lesaffre Animal Nutrition and Health Division, Shanghai 200235, China

Received date: 2016-09-02

Online published: 2017-03-09

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Abstract

This trial was conducted to investigate the effects of dietary yeast oligosaccharides (YOS) supplementation on production performance, egg quality, intestinal mucosal morphology and microflora distribution, serum biochemical indices and intestinal function related gene expression of laying hens under high density cultivation. A total of 864 twelve-week-old Hy-Line Brown hens were randomly allocated to 6 groups with 12 replicates per group, and each replicate with 3 cages and 3 (low density) or 5 (high density) birds per cage. Hens in control group were fed a basal diet, while in the other two experimental groups were fed the same basal diet supplemented with 250 and 500 g/t YOS, respectively. The experiment lasted for 18 weeks. The results showed as follows:1) dietary YOS supplementation significantly enhanced the uniformity of eggshell color (P<0.05). 2) Dietary YOS supplementation increased the ratio of villus height to crypt depth of intestinal mucosal of hens (P=0.059), which in 250 g/t YOS group was significantly higher than that in control group (P<0.05). 3) Lactobacillus population in jejunum of hens was significantly increased (P<0.05), whereas Escherichia coli population was significantly decreased (P<0.05) by dietary YOS supplementation and 250 g/t level got a better effect. 4) Dietary YOS supplementation significantly decreased serum endotoxin content (P<0.05), increased serum immunoglobulin A content (P=0.090) especially in 250 g/t YOS group, which was significantly higher than that in control group (P<0.05). The results indicate that dietary YOS supplementation, more particularly the 250 g/t dosage, can increase the intestinal function of laying hens subjected to high-density.

Key words： yeast oligosaccharides; laying hens; production performance; egg quality; serum biochemical indices; intestinal health

Cite this article

WANG Yu, LI Enkai, MENG Yanmiao, DING Xiangwen, YANG Jiachang, HU Xiyi, ZHANG Bo, SONG Zhigang . Effects of Dietary Yeast Oligosaccharides Supplementation on Production Performance, Egg Quality, Serum Biochemical Indices and Intestine Health of Laying Hens under High Density Cultivation[J]. Chinese Journal of Animal Nutrition, 2017 , 29(3) : 1030 -1038 . DOI: 10.3969/j.issn.1006-267x.2017.03.037

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