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.
Read More
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.
Read More
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.
Read More
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.
Read More
Yeast treatment reduces Salmonella prevalenceEffects of a mannan-rich yeast cell wall-derived preparation on cecal concentrations and tissue prevalence of Salmonella Enteritidis in layer chickens.
Moderate importance of findings
We explored how a mannan-rich yeast cell wall preparation, specifically Actigen®, affects Salmonella Enteritidis (SE) in layer chickens. The study involved feeding Actigen® to chickens challenged with SE, aiming to determine its effect on SE colonization in various tissues.
Our results showed that while Actigen® significantly reduced SE prevalence in ovarian tissue, no notable difference was found in liver/spleen samples compared to controls. Furthermore, cecal SE concentrations were lower in the Actigen® group, suggesting its potential to mitigate egg contamination. Overall, this yeast treatment may be a promising method for improving food safety.
Read More