Effects of Dietary Essential Oil/Palygorskite Composite on Performance and Intestinal Microflora of Laying Hens

  • CHENG Hao ,
  • TANG Shengguo ,
  • HE Changqing ,
  • GUO Songchang ,
  • CHEN Jifa ,
  • QU Xiangyong
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  • 1. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
    2. College of Life Science and Resources and Environmental, Yichun University, Yichun 336000, China

Received date: 2020-10-30

  Online published: 2021-05-14

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Abstract

This experiment was conducted to investigate the effects of dietary essential oil/palygorskite composite (EO-PGS) on performance and intestinal microflora of laying hens. Four hundred and eighty healthy 65-week-old brown Lohmann hens were randomly assigned to 4 groups with 6 replicates in each group and 20 hens in each replicate. Hens in the control group were fed a basal diet, and others in experimental groups were fed basal diets supplemented with 0.50, 0.75 and 1.00 g/kg EO-PGS, respectively. The pre-experimental period lasted for 7 days and the experimental period lasted for 56 days. The results showed as followed:1) compared with the control group, the laying rate of 0.75 and 1.00 g/kg EO-PGS group was significantly increased (P<0.05). 2) The β diversity analysis showed that the cecum microflora structure distribution of 0.75 and 1.00 g/kg EO-PGS groups was relatively scattered and had lower similarity compared with control group. 3) At the phylum level, compared with control group, the relative abundance of Tenericutes in cecum of experimental groups had a trend to increase (P=0.071), the relative abundance of Elusimicrobia in cecum of 0.50 and 0.75 g/kg EO-PGS was significantly increased (P<0.05). At the genus level, the relative abundance of Elumicrobium in cecum of 0.50 and 0.75 g/kg EO-PGS groups was significantly increased (P<0.05); the relative abundance of Eubacterium in cecum of 0.50 g/kg EO-PGS group was significantly increased (P<0.05). 4) Compared with the control group, the relative abundance of Bifidobacteria in cecum of experimental groups was significantly increased (P<0.05), and the relative abundance of Salmonella in cecum was significantly decreased (P<0.05); the relative abundance of Escherichia coli in cecum of 0.50 and 1.00 g/kg EO-PGS groups was significantly decreased (P<0.05), the relative abundance of Lactobacillus in cecum and duodenum of 0.50 g/kg EO-PGS group was significantly increased (P<0.05). To sum up, dietary supplemented with 0.50 and 1.00 g/kg EO-PGS can improve the performance of laying hens, and improve the bacterial diversity and optimize intestinal microbiota structure to a certain extent.

Cite this article

CHENG Hao , TANG Shengguo , HE Changqing , GUO Songchang , CHEN Jifa , QU Xiangyong . Effects of Dietary Essential Oil/Palygorskite Composite on Performance and Intestinal Microflora of Laying Hens[J]. Chinese Journal of Animal Nutrition, 2021 , 33(5) : 2631 -2641 . DOI: 10.3969/j.issn.1006-267x.2021.05.023

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