Article (Scientific journals)
A Probabilistic Structural Equation Model to Evaluate Links between Gut Microbiota and Body Weights of Chicken Fed or Not Fed Insect Larvae
Detilleux, Johann; Moula, Nassim; Dawans, Edwin et al.
2022In Biology, 11 (3), p. 357
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Keywords :
16S RNA; Bayesian network; Black soldier fly; Chicken; Insect in feed; Microbiota; Structural equation model; Biochemistry, Genetics and Molecular Biology (all); Immunology and Microbiology (all); Agricultural and Biological Sciences (all); General Agricultural and Biological Sciences; General Immunology and Microbiology; General Biochemistry, Genetics and Molecular Biology
Abstract :
[en] Feeding chicken with black soldier fly larvae (BSF) may influence their rates of growth via effects on the composition of their gut microbiota. To verify this hypothesis, we aim to evaluate a probabilistic structural equation model because it can unravel the complex web of relationships that exist between the bacteria involved in digestion and evaluate whether these influence bird growth. We followed 90 chickens fed diets supplemented with 0%, 5% or 10% BSF and measured the strength of the relationship between their weight and the relative abundance of bacteria (OTU) present in their cecum or cloaca at 16, 28, 39, 67 or 73 days of age, while adjusting for potential confounding effects of their age and sex. Results showed that OTUs (62 genera) could be combined into ten latent constructs with distinctive metabolic attributes. Links were discovered between these constructs that suggest nutritional relationships. Age directly influenced weights and microbiotal composition, and three constructs indirectly influenced weights via their dependencies on age. The proposed methodology was able to simplify dependencies among OTUs into knowledgeable constructs and to highlight links potentially important to understand the role of insect feed and of microbiota in chicken growth.
Research center :
FARAH. Productions animales durables - ULiège
Disciplines :
Animal production & animal husbandry
Author, co-author :
Detilleux, Johann ;  Université de Liège - ULiège > Département de gestion vétérinaire des Ressources Animales (DRA)
Moula, Nassim  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Méthodes expérimentales des animaux de laboratoire et éthique en expérimentation animale
Dawans, Edwin ;  Université de Liège - ULiège > Département de gestion vétérinaire des Ressources Animales (DRA)
Taminiau, Bernard  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Santé publique vétérinaire
Daube, Georges  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Santé publique vétérinaire
Leroy, Pascal ;  Université de Liège - ULiège > Département de gestion vétérinaire des Ressources Animales (DRA)
Language :
English
Title :
A Probabilistic Structural Equation Model to Evaluate Links between Gut Microbiota and Body Weights of Chicken Fed or Not Fed Insect Larvae
Publication date :
March 2022
Journal title :
Biology
eISSN :
2079-7737
Publisher :
MDPI
Volume :
11
Issue :
3
Pages :
357
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
This project received funding from the ?Academy for Research and Higher Education? Development Cooperation Committee (ARES-CCD)?, Brussels, Belgium, and ?Fonds Sp?ciaux de la Recherche (Universit? de Li?ge)?, Li?ge, Belgium.Funding: This project received funding from the “Academy for Research and Higher Education— Development Cooperation Committee (ARES-CCD)”, Brussels, Belgium, and “Fonds Spéciaux de la Recherche (Université de Liège)”, Liège, Belgium.
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