The value of gut microbiota to predict feed efficiency and growth of rabbits under different feeding regimes
Gut microbiota plays an important role in nutrient absorption and could impact rabbit feed efciency. This study aims at investigating such impact by evaluating the value added by microbial information for predicting individual growth and cage phenotypes related to feed efciency. The dataset comprised individual average daily gain and cage-average daily feed intake from 425 meat rabbits, in which cecal microbiota was assessed, and their cage mates. Despite microbiota was not measured in all animals, consideration of pedigree relationships with mixed models allowed the study of cageaverage traits. The inclusion of microbial information into certain mixed models increased their predictive ability up to 20% and 46% for cage-average feed efciency and individual growth traits, respectively. These gains were associated with large microbiability estimates and with reductions in the heritability estimates. However, large microbiabililty estimates were also obtained with certain models but without any improvement in their predictive ability. A large proportion of OTUs seems to be responsible for the prediction improvement in growth and feed efciency traits, although specifc OTUs taxonomically assigned to 5 diferent phyla have a higher weight. Rabbit growth and feed efciency are infuenced by host cecal microbiota, thus considering microbial information in models improves the prediction of these complex phenotypes.
619 - Veterinària
Is part of
Velasco-Galilea, María, Miriam Piles, Yuliaxis Ramayo-Caldas, and Juan P. Sánchez. 2021. "The Value Of Gut Microbiota To Predict Feed Efficiency And Growth Of Rabbits Under Different Feeding Regimes". Scientific Reports 11 (1). doi:10.1038/s41598-021-99028-y.
Grant agreement number
EC/H2020/633531/EU/Adapting the feed, the animal and the feeding techniques to improve the efficiency and sustainability of monogastric livestock production systems/Feed-a-Gene
MINECO/Programa Nacional de Proyectos de Investigación Fundamental/RTA2011-00064-00-00/ES/Mejora genética de la eficacia alimentaria en especies prolíficas/
MICIU-FEDER-AEI/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTI2018-097610R-I00/ES/MEJORA DE LA EFECTIVIDAD Y LA VIABILIDAD DE LOS PROGRAMAS DE SELECCION GENETICA PARA AUMENTAR LA EFICIENCIA ALIMENTARIA DE ESPECIES PROLIFICA/
MICIU-FEDER/Programa Estatal de promoción del talento y su empleabilidad en I+D+I/RYC2019-027244-I/ES/ /
MINECO/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTA2014-00015-C02-01/ES/Mejora de la eficiencia alimentaria en cerdos y conejos. Determinismo genético y estrategias de selección/
Genètica i Millora Animal
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS 
The following license files are associated with this item:
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/