Microbiome applications for laying hen performance and egg production

Ricke, Steven C.; Dittoe, Dana K.; Olson, Elena G.

doi:10.1016/j.psj.2022.101784

Cited by 11 publications

(4 citation statements)

References 99 publications

(142 reference statements)

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“…Additionally, given the perception of animal welfare, the laying hen housing system is changing from cage rearing to cage-free laying hen management ( Kidd and Anderson, 2019 ). This will increase laying hen exposure to pathogenic bacteria and parasites, challenging the physiology, performance, egg quality, and egg safety of laying hens ( Jeni et al, 2021 ; Ricke et al, 2022 ). The disorder of intestinal microbiota indued by the invasion of pathogenic bacteria will pose serious threats to food safety due to the presence of foodborne pathogens in eggs ( Gantois et al, 2009 ; Salihu et al, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Intestinal microbiota of layer hens and its association with egg quality and safety

Dai

Qi²,

Wang³

et al. 2022

Poultry Science

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Section: Introductionmentioning

confidence: 99%

Intestinal microbiota of layer hens and its association with egg quality and safety

Dai

Qi²,

Wang³

et al. 2022

Poultry Science

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“…The magnitude of the SE reduction may later be augmented by the Bacillus probiotic, possibly via its competitive exclusion mode of action. Ricke [44] and others noted that a bird's microbiome matures with age, and an immature gastrointestinal microflora system is less adept at defending against foodborne pathogen challenges, especially the serovar Salmonella Enteritidis. Having both a prebiotic and probiotic at this early stage of gut microbiome development should allow birds added defenses from incidental pathogen infections in a typical commercial environment.…”

Section: Discussionmentioning

confidence: 99%

Effect of a Bacillus subtilis plus Yeast Cell Wall Synbiotic on Salmonella Enteritidis Colonization in Ceca of Layer Pullets

Araba,

Girgis,

McBride

et al. 2024

Poultry

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Salmonella Enteritidis (SE) is a major contamination concern in eggs and risk for Salmonellosis in humans. Strains of Bacillus subtilis and yeast cell wall can be used as substitutes for antibiotic substances in feed against Salmonella in poultry. The objective of this study was to assess the effect of BacPack® (Quality Technology International, Inc., Elgin, IL, USA) Q1+1 (BPQ11), a feed additive combination of a Bacillus subtilis strain and Saccharomyces cerevisiae cell wall, on SE cecal colonization in Lohmann LSL pullets. A control group (CON) and a test group (BPQ) were each randomly assigned 100-day-old chicks. CON was fed a corn–soybean meal-based vegetarian mash diet, and BPQ was fed the control diet supplemented with BPQ11 for the duration of the study. At 8 days of age, chicks were orally challenged with a nalidixic acid-resistant SE strain at a dose of 6.3 × 107 colony forming units (CFUs) per bird. At 7, 11, 15, and 19 days post-challenge (DPC), 25 birds per group were euthanized, and their cecal contents were collected and analyzed for SE. SE counts were 6.88, 7.98, 7.79, and 7.50 in CON and 7.18, 7.31, 6.35, and 6.30 log10 CFU/g in BPQ at 7, 11, 15, and 19 DPC, respectively. SE did not differ between CON and BPQ at 7 DPC; however, BPQ had lower (p < 0.0001) SE at 11 (−0.67), 15 (−1.45), and 19 (−1.20 log10 CFU/g) DPC. Results indicate that synbiotic BPQ11 may be a useful dietary pre-harvest tool for SE management in layer birds.

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“…Intestinal microbiota communities and their metabolites are essential for the host physiology metabolism. The cecum has been regarded as the main site for containing relatively higher dominant microbial communities in laying hens (Ricke et al, 2022 ). The present study revealed that the addition of 0.25% FAMP increased the α-diversity of cecal microbiota, including richness indexes (Observed_species and Chao1) and the evolutionary diversity index (Faith-pd), but decreased the coverage index (Goods coverage), indicating that laying hens fed with 0.25% FAMP has the higher species abundance in the cecum.…”

Section: Discussionmentioning

confidence: 99%

Fermented Aronia melanocarpa pomace improves the nutritive value of eggs, enhances ovarian function, and reshapes microbiota abundance in aged laying hens

Li,

Qin,

Chen

et al. 2024

Front. Microbiol.

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IntroductionThere is a decline in the quality and nutritive value of eggs in aged laying hens. Fruit pomaces with high nutritional and functional values have gained interest in poultry production to improve the performance.MethodsThe performance, egg nutritive value, lipid metabolism, ovarian health, and cecal microbiota abundance were evaluated in aged laying hens (320 laying hens, 345-day-old) fed on a basal diet (control), and a basal diet inclusion of 0.25%, 0.5%, or 1.0% fermented Aronia melanocarpa pomace (FAMP) for eight weeks.ResultsThe results show that 0.5% FAMP reduced the saturated fatty acids (such as C16:0) and improved the healthy lipid indices in egg yolks by decreasing the atherogenicity index, thrombogenic index, and hypocholesterolemia/hypercholesterolemia ratio and increasing health promotion index and desirable fatty acids (P < 0.05). Additionally, FAMP supplementation (0.25%−1.0%) increased (P < 0.05) the ovarian follicle-stimulating hormone, luteinizing hormone, and estrogen 2 levels, while 1.0% FAMP upregulated the HSD3B1 expression. The expression of VTG II and ApoVLDL II in the 0.25% and 0.5% FAMP groups, APOB in the 0.5% FAMP group, and ESR2 in the 1% FAMP group were upregulated (P < 0.05) in the liver. The ovarian total antioxidant capacity was increased (P < 0.05) by supplementation with 0.25%−1.0% FAMP. Dietary 0.5% and 1.0% FAMP downregulated (P < 0.05) the Keap1 expression, while 1.0% FAMP upregulated (P < 0.05) the Nrf2 expression in the ovary. Furthermore, 1.0% FAMP increased cecal acetate, butyrate, and valerate concentrations and Firmicutes while decreasing Proteobacteria (P < 0.05).ConclusionOverall, FAMP improved the nutritive value of eggs in aged laying hens by improving the liver–blood–ovary function and cecal microbial and metabolite composition, which might help to enhance economic benefits.

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Microbiome applications for laying hen performance and egg production

Cited by 11 publications

References 99 publications

Intestinal microbiota of layer hens and its association with egg quality and safety

Intestinal microbiota of layer hens and its association with egg quality and safety

Effect of a Bacillus subtilis plus Yeast Cell Wall Synbiotic on Salmonella Enteritidis Colonization in Ceca of Layer Pullets

Fermented Aronia melanocarpa pomace improves the nutritive value of eggs, enhances ovarian function, and reshapes microbiota abundance in aged laying hens

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