We proposed a structural equation model to provide a better understanding of how genetic effects directly affect average daily gain on ad libitum (ADGAL) and restricted (ADGR) feeding regimens and how these effects affect those same traits through the microbiota (indirect effects). 138 OTUs (operational taxonomic unit) with structural coefficients statistically different from zero were identified, 104 and 34 had a positive and negative effect, respectively. These OTUs belonged, mostly, to the family Lachnospiraceae, Ruminococcaeae and Clostridiales. The highest heritability was found for New.Reference369 that belongs to genus Desulfovibrio (0.234 (0.091)). This OTU was identified as an important OTU with total negative effect on ADGR. Members from orders Bacteroidales and Clostridiales and family Lachnospiraceae had a positive and relevant indirect effect on ADG. The contribution of indirect effects to total covariance was greater than 25% for 28 and 17% of the OTUs with a significant effect on ADGAL and ADGR, respectively.
Proceedings of 12th World Congress on Genetics Applied to Livestock Production (WCGALP)
Technical and species orientated innovations in animal breeding, and contribution of genetics to solving societal challenges
EditorsR.F. Veerkamp and Y. de Haas
Published: 2022 Pages: 3364
eISBN: 978-90-8686-940-4
Book Type: Conference Proceedings
68. Study of the causal relationship between the rabbit cecal microbiota and host’s growth and feed efficiency
M. Piles Related information
1Institute of Agrifood Research and Technology (IRTA), Animal Breeding and Genetics, Torre Marimon C-59, km 12,1, 08140 Caldes de Montbui, Barcelona, Spain.
*Corresponding author: miriam.
, M. Mora Related information*Corresponding author: miriam.
1Institute of Agrifood Research and Technology (IRTA), Animal Breeding and Genetics, Torre Marimon C-59, km 12,1, 08140 Caldes de Montbui, Barcelona, Spain.
, J.P. Sánchez Related information1Institute of Agrifood Research and Technology (IRTA), Animal Breeding and Genetics, Torre Marimon C-59, km 12,1, 08140 Caldes de Montbui, Barcelona, Spain.
, Y. Ramayo-Caldas Related information1Institute of Agrifood Research and Technology (IRTA), Animal Breeding and Genetics, Torre Marimon C-59, km 12,1, 08140 Caldes de Montbui, Barcelona, Spain.
, O. González-Rodríguez Related information1Institute of Agrifood Research and Technology (IRTA), Animal Breeding and Genetics, Torre Marimon C-59, km 12,1, 08140 Caldes de Montbui, Barcelona, Spain.
, M. Velasco-Galilea Related information1Institute of Agrifood Research and Technology (IRTA), Animal Breeding and Genetics, Torre Marimon C-59, km 12,1, 08140 Caldes de Montbui, Barcelona, Spain.
Published Online: February 09, 2023
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