Saccharomyces cerevisiae, its effect on productive parameters and health in broiler chickens: A review
DOI:
https://doi.org/10.56124/allpa.v9i17.0150Keywords:
Zootechnical productivity, intestinal health, immunity, avian welfareAbstract
The use of probiotics in poultry feed has gained relevance as a strategy to improve intestinal health and productive performance in broiler chickens. Among these, Saccharomyces cerevisiae has been widely studied for its potential benefits on the intestinal microbiota, gut structure, and digestive efficiency. A systematic review of articles published between 2013 and 2025 was conducted in databases such as PubMed, Scopus, Web of Science, and Google Scholar, following the guidelines of the PRISMA method. Experimental studies that evaluated variables such as microbiota, intestinal structure, pH, enzyme activity, and productive performance (weight, feed conversion, mortality) were included. The findings showed that S. cerevisiae supplementation promotes intestinal eubiosis by increasing beneficial bacteria and reducing pathogens, improves villus height and the villus-to: crypt ratio, stimulates mucus production, and strengthens intestinal immunity. In terms of productivity, it is associated with increased growth rate, improved feed conversion, and, in many cases, higher final weight with the same or lower feed intake, which represents an economic advantage in antibiotic-free systems. Furthermore, it was identified that efficacy depends on the dose, strain, and presentation method, with optimal levels that maximize benefits. It is concluded that, S. cerevisiae is established as a safe and sustainable biotechnological alternative for improving intestinal health and poultry productivity, with positive implications for profitability and food safety.
Keywords: Zootechnical productivity, intestinal health, immunity, avian welfare.
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