Colonization of chickens with competitive exclusion products results in extensive differences in metabolite composition in cecal digesta

Vlasatikova, Lenka; Zeman, Michal; Crhanova, Magdalena; Matiasovicova, Jitka; Karasova, Daniela; Faldynova, Marcela; Prikrylova, Hana; Sebkova, Alena; Rychlik, Ivan

doi:10.1016/j.psj.2023.103217

Cited by 3 publications

(1 citation statement)

References 52 publications

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“…The abundance of Turicibacter was increased in the gut of broilers fed with supplemented diet containing dried distillers grains with solubles (Abudabos et al, 2017 ). Ruminococcus are butyrate producers, and have been shown to be highly abundant in chicken caecum (Saxena et al, 2016 ; Vlasatikova et al, 2024 ). As shown in the broiler chickens gut, Anaerostipes species produce butyrate (Eeckhaut et al, 2010 ), which is a preferred source of energy for intestinal epithelial cells.…”

Section: Discussionmentioning

confidence: 99%

Dust sprinkling as an effective method for infecting layer chickens with wild‐type SalmonellaTyphimurium and changes in host gut microbiota

Khan,

McWhorter,

Andrews

et al. 2024

Environ Microbiol Rep

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Role of dust in Salmonella transmission on chicken farms is not well characterised. Salmonella Typhimurium (ST) infection of commercial layer chickens was investigated using a novel sprinkling method of chicken dust spiked with ST and the uptake compared to a conventional oral infection. While both inoculation methods resulted in colonisation of the intestines, the Salmonella load in liver samples was significantly higher at 7 dpi after exposing chicks to sprinkled dust compared to the oral infection group. Infection of chickens using the sprinkling method at a range of doses showed a threshold for colonisation of the gut and organs as low as 1000 CFU/g of dust. Caecal content microbiota analysis post‐challenge showed that the profiles of chickens infected by the sprinkling and oral routes were not significantly different; however, both challenges induced differences when compared to the uninfected negative controls. Overall, the study showed that dust sprinkling was an effective way to experimentally colonise chickens with Salmonella and alter the gut microbiota than oral gavage at levels as low as 1000 CFU/g dust. This infection model mimics the field scenario of Salmonella infection in poultry sheds. The model can be used for future challenge studies for effective Salmonella control.

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Section: Discussionmentioning

confidence: 99%

Dust sprinkling as an effective method for infecting layer chickens with wild‐type SalmonellaTyphimurium and changes in host gut microbiota

Khan,

McWhorter,

Andrews

et al. 2024

Environ Microbiol Rep

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Immunoglobulin secretion influences the composition of chicken caecal microbiota

Volf,

Kaspers,

Schusser

et al. 2024

Sci Rep

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Probiotic Mixtures Consisting of Representatives of Bacteroidetes and Selenomonadales Increase Resistance of Newly Hatched Chicks to Salmonella Enteritidis Infection

Volf,

Faldynova,

Matiasovicova

et al. 2024

Microorganisms

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There are extensive differences in the caecal microbiota of chicks from hatcheries and those inoculated with faecal material from adult hens. Besides differences in microbial composition, the latter chickens are highly resistant to Salmonella Enteritidis challenges, while the former are susceptible. In this study, we tested whether strains from genera Bacteroides, Megamonas, or Megasphaera can increase chicken resistance to Salmonella and Campylobacter jejuni when defined microbial mixtures consisting of these bacterial genera are administered. Mixtures consisting of different species and strains from the above-mentioned genera efficiently colonised the chicken caecum and increased chicken resistance to Salmonella by a factor of 50. The tested mixtures were even more effective in protecting chickens from Salmonella in a seeder model of infection (3–5 log reduction). The tested mixtures partially protected chickens from C. jejuni infection, though the effect was lower than that against Salmonella. The obtained data represent a first step for the development of a new type of probiotics for poultry.

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Colonization of chickens with competitive exclusion products results in extensive differences in metabolite composition in cecal digesta

Cited by 3 publications

References 52 publications

Dust sprinkling as an effective method for infecting layer chickens with wild‐type SalmonellaTyphimurium and changes in host gut microbiota

Dust sprinkling as an effective method for infecting layer chickens with wild‐type SalmonellaTyphimurium and changes in host gut microbiota

Immunoglobulin secretion influences the composition of chicken caecal microbiota

Probiotic Mixtures Consisting of Representatives of Bacteroidetes and Selenomonadales Increase Resistance of Newly Hatched Chicks to Salmonella Enteritidis Infection

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