期刊论文详细信息
PeerJ
Circadian disruption and divergent microbiota acquisition under extended photoperiod regimens in chicken
article
Anne-Sophie Charlotte Hieke1  Shawna Marie Hubert1  Giridhar Athrey1 
[1] Poultry Science Department, Texas A&M University, College Station;Faculty of Ecology and Evolutionary Biology, Texas A&M University, College Station
关键词: Circadian disruption;    Microbiota acquisition;    Poultry;    Photoperiods;    Gut health;    Fecal microbiota;    Cecal microbiota;   
DOI  :  10.7717/peerj.6592
学科分类:社会科学、人文和艺术(综合)
来源: Inra
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【 摘 要 】

18 h light) as a management tool, and their impacts on the chicken circadian, its role in gut microbiota acquisition in early life (first 3 weeks of life), and consequences for later life microbiota structure remain unknown. In this study, the objectives were to (a) characterize circadian activity under two different light regimes in layer chicken (12/12 h′ Light/Dark (LD) and 23/1 h LD), (b) characterize gut microbiota acquisition and composition in the first 4 weeks of life, (c) determine if gut microbiota oscillate in synchrony with the host circadian rhythm, and (d) to determine if fecal microbiota is representative of cecal microbiota in early life. Expression of clock genes (clock, bmal1, and per2) was assayed, and fecal and cecal microbiotas were characterized using 16S rRNA gene amplicon analyses from birds raised under two photoperiod treatments. Chickens raised under 12/12 LD photoperiods exhibited rhythmic clock gene activity, which was absent in birds raised under the extended (23/1 LD) photoperiod. There was differential microbiota acquisition under different photoperiod regimes in newly hatched chicks. Gut microbiota members showed a similar oscillating pattern as the host, but this association was not as strong as found in mammals. Finally, the fecal microbiota was found to be not representative of cecal microbiota membership and structure in young birds. This is one of the first studies to demonstrate the use of photoperiods to modulate microbiota acquisition in newly hatched chicks, and show their potential as a tool to promote the colonization of beneficial microorganisms.

【 授权许可】

CC BY   

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