The Microbiota-Gut-Brain Axis: Gut Microbiota Modulates Conspecific Aggression in Diversely Selected Laying Hens.

ABSTRACT: The gut microbiota plays an important role in regulating brain function, influencing psychological and emotional stability. The correlations between conspecific aggression, gut microbiota, and physiological homeostasis were further studied in inbred laying chicken lines, 63 and 72, which were diversely selected for Marek’s disease, and they also behave differently in aggression. Ten sixty-week-old hens from each line were sampled for blood, brain, and cecal content. Neurotransmitters, cytokines, corticosterone, and heterophil/lymphocyte ratios were determined. Cecal microbiota compositions were determined by bacterial 16s rRNA sequencing, and functional predictions were performed. Our data showed that the central serotonin and tryptophan levels were higher in line 63 compared to line 72 (p

SUBMITTER: Hu J 

PROVIDER: S-EPMC9230770 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature