Postbiotic reduces Salmonella in pulletsEffect of Feeding a Postbiotic Derived from Saccharomyces cerevisiae Fermentation as a Preharvest Food Safety Hurdle for Reducing Salmonella Enteritidis in the Ceca of Layer Pullets.
High relevance for food safety
We evaluated how a postbiotic derived from Saccharomyces cerevisiae might help reduce Salmonella Enteritidis in young layer pullets. In our study, we tested two groups of pullets—one group received a diet supplemented with the postbiotic, while the other did not.
After introducing the bacteria, we found that while all birds had Salmonella presence, those on the postbiotic diet had significantly lower levels of the bacteria. This suggests that including Saccharomyces cerevisiae could offer an effective strategy for enhancing food safety before harvest.
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We explored how Saccharomyces cerevisiae RC016 could benefit gut health and growth in weaned piglets. Through a well-structured study, we divided twelve piglets into two groups: one received the yeast, while the other served as a control. After three weeks, results showed the yeast group had higher levels of protective antibodies and more goblet cells, indicating better gut health. An additional ex vivo model suggested that the yeast may also help reduce inflammation. Overall, S. cerevisiae RC016 shows promise as a feed additive that can enhance animal welfare and immunity.
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Effect of SeNPs on ZEA toxicityProphylactic supplementation with selenium nanoparticles protects against foodborne toxin zearalenone-induced intestinal barrier dysfunction.
Relevant to gut health research
We explored the protective effects of selenium nanoparticles (SeNPs) against the harmful impacts of zearalenone (ZEA), a toxin from grains that can disrupt gut health. In a controlled setting, we observed that ZEA damages intestinal cells, leading to inflammation and increased permeability.
Our findings showed that SeNPs can counteract this damage by enhancing antioxidant activity and improving gut microbiota balance. Despite these promising results, it’s crucial to note that the effectiveness of SeNPs in humans still requires further investigation.
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Yeast reduces Salmonella in vitroComparison of yeast-derived commercial feed additives on Salmonella Enteritidis survival and microbiota populations in rooster cecal in vitro incubations.
High relevance to food safety
We explored how various yeast-derived products could impact Salmonella Enteritidis survival in rooster cecal contents during in vitro tests. Several yeast treatments showed promise, with four products significantly reducing Salmonella levels by 1 log CFU/mL initially and by 3 log CFU/mL after 48 hours, compared to controls.
However, these treatments did not influence the overall diversity or health of the cecal microbiome, indicating that beneficial effects can occur without disrupting the gut environment. This research underscores the potential of yeast products in combating foodborne pathogens while maintaining gut balance.
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Yeast improves Salmonella controlEffect of dietary direct-fed microbial and yeast cell walls on cecal digesta microbiota of layer chicks inoculated with nalidixic acid resistant Salmonella Enteritidis.
High relevance for pathogen management
We investigated how feeding layer chicks with a combination of dietary direct-fed microbial and yeast cell walls affects their response to Salmonella Enteritidis, a common cause of food poisoning.
The study involved 160 chicks divided into control and treatment groups. Chicks in the treatment group showed a significantly lower prevalence of Salmonella and a richer diversity of beneficial bacteria in their gut over time. These findings suggest that this dietary supplement can help reduce food poisoning risk and enhance gut health in poultry.
This approach might be valuable in managing foodborne pathogens more effectively.
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