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HOME > J. Microbiol > Volume 55(12); 2017 > Article
Journal Article
Cecal microbiome divergence of broiler chickens by sex and body weight
Kyu-Chan Lee 1, Dong Yong Kil 2, Woo Jun Sul 1
Journal of Microbiology 2017;55(12):939-945.
DOI: https://doi.org/10.1007/s12275-017-7202-0
Published online: December 7, 2017
1Department of Systems Biotechnology, Chung-Ang University, Anseong 17546, Republic of Korea, 2Department of Animal Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea1Department of Systems Biotechnology, Chung-Ang University, Anseong 17546, Republic of Korea, 2Department of Animal Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea
Corresponding author:  Dong Yong Kil , Tel: +82-31-670-4707, 
Woo Jun Sul , Tel: +82-31-670-4707, 
Received: 11 May 2017   • Revised: 10 October 2017   • Accepted: 26 October 2017
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Abstract

The divergence of gut bacterial community on broiler chickens has been reported as potentially possible keys to enhancing nutrient absorption, immune systems, and increasing poultry health and performance. Thus, we compared cecal bacterial communities and functional predictions by sex and body weight regarding the association between cecal microbiota and chicken growth performance. In this study, a total of 12 male and 12 female 1-day-old broiler chickens were raised for 35 days in 2 separate cages. Chickens were divided into 3 subgroups depending on body weight (low, medium, and high) by each sex. We compared chicken cecal microbiota compositions and its predictive functions by sex and body weight difference. We found that bacterial 16S rRNA genes were classified as 3 major phyla (Bacteroidetes, Firmicutes, and Proteobacteria), accounting for > 98% of the total bacterial community. The profiling of different bacterial taxa and predictive metagenome functions derived from 16S rRNA genes were performed over chicken sex and bodyweight. Male chickens were related to the enrichment of Bacteroides while female chickens were to the enrichment of Clostridium and Shigella. Male chickens with high body weight were associated with the enrichment of Faecalibacterium and Shuttleworthia. Carbohydrate and lipid metabolisms were suggested as candidate functions for weight gain in the males. This suggests that the variation of cecal bacterial communities and their functions by sex and body weight may be associated with the differences in the growth potentials of broiler chickens.

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    Cecal microbiome divergence of broiler chickens by sex and body weight
    J. Microbiol. 2017;55(12):939-945.   Published online December 7, 2017
    DOI: https://doi.org/10.1007/s12275-017-7202-0
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