Genetic and microbiome analysis of feed efficiency in laying hens

Zhou, Qianqian; Lan, Fangren; Gu, Shuang; Li, Guangqi; Wu, Guiqin; Yan, Yong-Bin; Li, Xiaochang; Jin, Jiaming; Wen, Chaoliang; Sun, Congjiao; Yang, Ning

doi:10.1016/j.psj.2022.102393

Cited by 11 publications

(6 citation statements)

References 62 publications

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“…This genus has been described as cellulose degrader 52 , which may explain its increase in the R+ LE group. Furthermore, it has recently been reported to be negatively correlated with RFI and to contribute to improved feed efficiency in adult layers 53 , in lines with our observation of increase in the R- CTR group. We also identified Negativibacillus as being more abundant in both lines in LE diet; this genus being implicated in the digestion of complex carbohydrates 54 .…”

Section: Discussionsupporting

confidence: 92%

Relationship between feed efficiency and gut microbiota in laying chickens under contrasting feeding conditions

Bernard,

Lecoeur,

Coville

et al. 2024

Sci Rep

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The gut microbiota is known to play an important role in energy harvest and is likely to affect feed efficiency. In this study, we used 16S metabarcoding sequencing to analyse the caecal microbiota of laying hens from feed-efficient and non-efficient lines obtained by divergent selection for residual feed intake. The two lines were fed either a commercial wheat-soybean based diet (CTR) or a low-energy, high-fibre corn-sunflower diet (LE). The analysis revealed a significant line x diet interaction, highlighting distinct differences in microbial community composition between the two lines when hens were fed the CTR diet, and more muted differences when hens were fed the LE diet. Our results are consistent with the hypothesis that a richer and more diverse microbiota may play a role in enhancing feed efficiency, albeit in a diet-dependent manner. The taxonomic differences observed in the microbial composition seem to correlate with alterations in starch and fibre digestion as well as in the production of short-chain fatty acids. As a result, we hypothesise that efficient hens are able to optimise nutrient absorption through the activity of fibrolytic bacteria such as Alistipes or Anaerosporobacter, which, via their production of propionate, influence various aspects of host metabolism.

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Section: Discussionsupporting

confidence: 92%

Relationship between feed efficiency and gut microbiota in laying chickens under contrasting feeding conditions

Bernard,

Lecoeur,

Coville

et al. 2024

Sci Rep

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“…Against this background, we described for the first time the microbiome compositions that positively and negatively influence poultry farming productivity, which can be used to monitor feeding efficiency. Furthermore, we postulate the benefit of the Bacillota phyla abundance in the cecal microbiome, different members of which have specific activities relevant for improved feed efficiency and may be a source for novel probiotics [39,40]. Moreover, we provide insight into the importance of gut microbiome diversity, which underlies a wide range of metabolic pathways for efficient feed conversion and contributes to improved EPEF values.…”

Section: Discussionmentioning

confidence: 88%

Broiler Chicken Cecal Microbiome and Poultry Farming Productivity: A Meta-Analysis

Deryabin,

Lazebnik,

Vlasenko

et al. 2024

Microorganisms

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The cecal microbial community plays an important role in chicken growth and development via effective feed conversion and essential metabolite production. The aim of this study was to define the microbial community’s variants in chickens’ ceca and to explore the most significant association between the microbiome compositions and poultry farming productivity. The meta-analysis included original data from 8 control broiler chicken groups fed with a standard basic diet and 32 experimental groups supplemented with various feed additives. Standard Illumina 16S-RNA gene sequencing technology was used to characterize the chicken cecal microbiome. Zootechnical data sets integrated with the European Production Effectiveness Factor (EPEF) were collected. Analysis of the bacterial taxa abundance and co-occurrence in chicken cecal microbiomes revealed two alternative patterns: Bacteroidota-dominated with decreased alpha biodiversity; and Bacillota-enriched, which included the Actinomycetota, Cyanobacteriota and Thermodesulfobacteriota phyla members, with increased biodiversity indices. Bacillota-enriched microbiome groups showed elevated total feed intake (especially due to the starter feed intake) and final body weight, and high EPEF values, while Bacteroidota-dominated microbiomes were negatively associated with poultry farming productivity. The meta-analysis results lay the basis for the development of chicken growth-promoting feed supplementations, aimed at the stimulation of beneficial and inhibition of harmful bacterial patterns, where relevant metagenomic data can be a tool for their control and selection.

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“…causing presumptive clinical disease in a patient. Since the identification of Anaerosporobacter sp., it has been isolated from the gastrointestinal tract of cows, horses and chickens 12–14 . It has also been reported in the faecal microbiome of people with nonalcoholic steatohepatitis, or nonalcoholic fatty liver disease 15,16 .…”

Section: Discussionmentioning

confidence: 99%

“…Since the identification of Anaerosporobacter sp., it has been isolated from the gastrointestinal tract of cows, horses and chickens. [12][13][14] It has also been reported in the faecal microbiome of people with nonalcoholic steatohepatitis, or nonalcoholic fatty liver disease. 15,16 In none of these cases have these organisms been studied as a cause of overt clinical signs in the patient.…”

Section: Discussionmentioning

confidence: 99%

Identification of Anaerosporobacter sp. using next‐generation DNA sequencing as a presumptive cause of chronic cloacitis in a Congo African grey parrot (Psittacus erithacus)

Vecere,

Malka,

Dennison

et al. 2023

Vet Record Case Reports

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A 29‐year‐old, female Congo African grey parrot (Psittacus erithacus) was presented for a 2‐month history of soft malodorous stool. Next‐generation DNA sequencing of the faecal matter identified Anaerosporobacter sp. in the stool sample. The bird was treated with a 14‐day course of metronidazole, after which next‐generation DNA sequencing no longer detected Anaerosporobacter sp. The bird's clinical signs resolved concurrently. Clinical signs of malodorous stool recurred, and repeated next‐generation DNA sequencing showed recurrence of Anaerosporobacter sp. Duodenal dysmotility/hypermotility syndrome was noted on fluoroscopy. The bird also tested positive for bornavirus and anti‐ganglioside antibodies. We suspect that dysmotility and hypermotility of the duodenum were associated with active bornavirus infection, which caused immunosuppression and predisposed the bird to intestinal colonisation by a novel organism. This report demonstrates the presumptive diagnosis and treatment challenges of Anaerosporobacter sp. from the faeces of a psittaciform species using next‐generation DNA sequencing as opposed to traditional culture techniques.

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Genetic and microbiome analysis of feed efficiency in laying hens

Cited by 11 publications

References 62 publications

Relationship between feed efficiency and gut microbiota in laying chickens under contrasting feeding conditions

Relationship between feed efficiency and gut microbiota in laying chickens under contrasting feeding conditions

Broiler Chicken Cecal Microbiome and Poultry Farming Productivity: A Meta-Analysis

Identification of Anaerosporobacter sp. using next‐generation DNA sequencing as a presumptive cause of chronic cloacitis in a Congo African grey parrot (Psittacus erithacus)

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