Impact de la sélection de l'efficacité digestive sur la composition du microbiote chez le poulet
| Autor: | Barbara Konsak-Ilievski, Marie Chabault, Nadine Sellier, Irène Gabriel, Marie-Yvonne Boscher, Agnès Narcy, Nicole Rideau, Sandrine Mignon-Grasteau, Céline Chantry-Darmon, Elisabeth Le Bihan-Duval |
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| Přispěvatelé: | Mignon Grasteau, Sandrine, Unité de Recherches Avicoles (URA), Institut National de la Recherche Agronomique (INRA), Laboratoire d'Analyse Génétique pour les Espèces Animales (LABOGENA), Pôle d'Expérimentation Avicole de Tours (UE PEAT), ANR CHIEF |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
[SDV]Life Sciences [q-bio]
heritability medicine.disease_cause Lactobacillus microbiota chicken genetics digestibility digestive efficiency QTL Food science 2. Zero hunger 0303 health sciences Multidisciplinary biology qtl 04 agricultural and veterinary sciences Medicine Digestion Research Article digestibilité Science Quantitative Trait Loci poulet Feed conversion ratio Genetic correlation Microbiology 03 medical and health sciences microbiote Escherichia coli medicine Animals [INFO]Computer Science [cs] Microbiome nutrition animale Feces 030304 developmental biology 0402 animal and dairy science Broiler biology.organism_classification 040201 dairy & animal science Gastrointestinal Tract volaille microflore digestive Chickens efficacité digestive |
| Zdroj: | Plos One 8 (10), e0135488. (2015) PLoS ONE, Vol 10, Iss 8, p e0135488 (2015) PLoS ONE PLoS ONE, Public Library of Science, 2015, 10 (8), pp.e0135488. ⟨10.1371/journal.pone.0135488⟩ |
| ISSN: | 1932-6203 |
| Popis: | ObjectivesFeed efficiency and its digestive component, digestive efficiency, are key factors in the environmental impact and economic output of poultry production. The interaction between the host and intestinal microbiota has a crucial role in the determination of the ability of the bird to digest its food and to the birds' feed efficiency. We therefore investigated the phenotypic and genetic relationships between birds' efficiency and the composition of the cecal microbiota in a F2 cross between broiler lines divergently selected for their high or low digestive efficiency.MethodsAnalyses were performed on 144 birds with extreme feed efficiency values at 3 weeks, with feed conversion values of 1.41±0.05 and 2.02±0.04 in the efficient and non-efficient groups, respectively. The total numbers of Lactobacillus, L. salivarius, L. crispatus, C. coccoides, C. leptum and E. coli per gram of cecal content were measured.ResultsThe two groups mainly differed in larger counts of Lactobacillus, L. salivarius and E. coli in less efficient birds. The equilibrium between bacterial groups was also affected, efficient birds showing higher C. leptum, C. coccoides and L. salivarius to E. coli ratios. The heritability of the composition of microbiota was also estimated and L. crispatus, C. leptum, and C. coccoides to E. coli ratios were moderately but significantly heritable (0.16 to 0.24). The coefficient of fecal digestive use of dry matter was genetically and positively correlated with L. crispatus, C. leptum, C. coccoides (0.50 to 0.76) and negatively with E. coli (-0.66). Lipid digestibility was negatively correlated with E. coli (-0.64), and AMEn positively correlated with C. coccoides and with the C. coccoides to Lactobacillus ratio (0.48 to 0.64). We also detected 14 Quantitative Trait Loci (QTL) for microbiota on the host genome, mostly on C. leptum and Lactobacillus. The QTL for C. leptum on GGA6 was close to genome-wide significance. This region mainly includes genes involved in anti-inflammatory responses and in the motility of the gastrointestinal tract. |
| Databáze: | OpenAIRE |
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