Effects of Compound Plant Essential Oils on Performance, Egg Quality and Cecal Microflora of 58-Week-Old Hy-Line Brown Laying Hens

YANG Jianping; WANG Xiaoxiao; LI Xinfeng; DUAN Haitao; LI Mengyun; YAO Guojia

doi:10.3969/j.issn.1006-267x.2020.06.047

2020 , Vol. 32 >Issue 6: 2869 - 2879

DOI: https://doi.org/10.3969/j.issn.1006-267x.2020.06.047

Effects of Compound Plant Essential Oils on Performance, Egg Quality and Cecal Microflora of 58-Week-Old Hy-Line Brown Laying Hens

YANG Jianping ,
WANG Xiaoxiao ,
LI Xinfeng ,
DUAN Haitao ,
LI Mengyun ,
YAO Guojia

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1. College of Animal Science and Technology, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, China;
2. Feed Resources Development and Safety Evaluation Engineering Research Center of Henan Province, Zhengzhou 450046, China

Received date: 2019-12-26

Online published: 2020-06-16

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Abstract

This experiment was conducted to investigate the effects of compound plant essential oils (Illicium verum essential oil and thymus mongolicus essential oils) on performance, egg quality and cecal microflora of 58-week-old Hy-Line brown laying hens. A total of 360 fifty-eight-week-old Hy-Line brown laying hens with similar laying rate and body weight were randomly allocated to 2 groups (control group and experimental group) with 6 replicates per group and 30 hens per replicate. The control group was fed a basic diet, and the experimental group was fed the basic diet+150 mg/kg compound plant essential oils. The experiment lasted for 49 days. The results showed as follows: 1) compared with the control group, the laying rate of experiment group was significantly increased (P<0.05), the ratio of feed to egg and broken egg rate were significantly decreased (P<0.05), while the average daily feed intake and mortality had no significant difference (P>0.05). 2) Compared with the control group, the yolk color and albumen weight of experiment group were significantly increased (P<0.05), while the other egg quality indexes had no significant difference (P>0.05). 3) Compared with the control group, the Shannon index of experiment group was significantly decreased (P<0.05), while the Chao1 index, ACE index and Simpson index had no significant difference (P>0.05). 4) At the phylum level, the main cecal microflora of two groups were Firmicutes, Bacteroidetes, Fusobacteria, Proteobacteria and Actinobacteria. Compared with the control group, the relative abundance of Bacteroidetes of experiment group was significantly increased (P<0.05), while the relative abundances of Firmicutes and Fusobacteria were significantly decreased (P<0.05). 5) At the genus level, compared with the control group, the relative abundances of Bacteroides and unidentified_Ruminococcaceae were significantly increased (P<0.05), the relative abundances of Fusobacterium, Ruminococcaceae_UCG-005 and Anaerotruncus were significantly decreased (P<0.05), and the relative abundances of Ruminococcaceae_UCG-014 and Christensenellaceae_R-7_group were showed a decline trend (P=0.060). In conclusion, under the condition of this experiment, dietary supplemented 150 mg/kg compound plant essential oils can improve the performance, deepen the yolk color of 58-week-old Hy-Line brown laying hens, and increase the relative abundance of Bacteroidetes, decrease the relative abundances of Firmicutes and Fusobacteria, improve the cecal microflora structure.

Key words： compound plant essential oils; laying hens; performance; egg quality; cecal microflora structure

Cite this article

YANG Jianping , WANG Xiaoxiao , LI Xinfeng , DUAN Haitao , LI Mengyun , YAO Guojia . Effects of Compound Plant Essential Oils on Performance, Egg Quality and Cecal Microflora of 58-Week-Old Hy-Line Brown Laying Hens[J]. Chinese Journal of Animal Nutrition, 2020 , 32(6) : 2869 -2879 . DOI: 10.3969/j.issn.1006-267x.2020.06.047

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