Genetic relationships between feed efficiency and gut microbiome in pig lines selected for residual feed intake.

ABSTRACT: This study aimed to evaluate the genetic relationship between faecal microbial composition and five feed efficiency (FE) and production traits, residual feed intake (RFI), feed conversion ratio (FCR), daily feed intake (DFI), average daily gain (ADG) and backfat thickness (BFT). A total of 588 samples from two experimental pig lines developed by divergent selection for RFI were sequenced for the 16 rRNA hypervariable V3-V4 region. The 75 genera with less than 20% zero values (97% of the counts) and two α-diversity indexes were analysed. Line comparison of the microbiota traits and estimations of heritability (h² ) and genetic correlations (r_g ) were analysed. A non-metric multidimensional scaling showed line differences between genera. The α-diversity indexes were hig

SUBMITTER: Aliakbari A 

PROVIDER: S-EPMC8248129 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature