Live Yeast and Yeast Cell Wall Supplements Enhance Immune Function and Performance in Food-Producing Livestock: A Review (†,)(‡).

Paul R Broadway,Jeffery A Carroll,Nicole C Burdick Sanchez

doi:10.3390/microorganisms3030417

Paul R Broadway, Jeffery A Carroll + Show 1 more

Open Access

https://doi.org/10.3390/microorganisms3030417

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Abstract

More livestock producers are seeking natural alternatives to antibiotics and antimicrobials, and searching for supplements to enhance growth performance, and general animal health and well-being. Some of the compounds currently being utilized and studied are live yeast and yeast-based products derived from the strain Saccharomyces cerevisiae. These products have been reported to have positive effects both directly and indirectly on the immune system and its subsequent biomarkers, thereby mitigating negative effects associated with stress and disease. These yeast-based products have also been reported to simultaneously enhance growth and performance by enhancing dry matter intake (DMI) and average daily gain (ADG) perhaps through the establishment of a healthy gastrointestinal tract. These products may be especially useful in times of potential stress such as during birth, weaning, early lactation, and during the receiving period at the feedlot. Overall, yeast supplements appear to possess the ability to improve animal health and metabolism while decreasing morbidity, thereby enhancing profitability of these animals.

Highlights

In the current field of food production in America, farmers and ranchers are seeking natural technologies and compounds to improve animal health and performance
One of these alternative products is live yeast and yeast cell wall products derived from Saccharomyces cerevisiae
Saccharomyces cerevisiae is a species of yeast that has been used for centuries for a variety of processes including, but not limited to, brewing and bread-making

Summary

Introduction

In the current field of food production in America, farmers and ranchers are seeking natural technologies and compounds to improve animal health and performance. There are a plethora of natural alternatives to growth-promoting antibiotics that produce similar effects on performance and overall animal health and well-being [2,3]. One of these alternative products is live yeast and yeast cell wall products derived from Saccharomyces cerevisiae. This review will briefly elucidate some of these effects with regard to immunity, metabolism, and performance These natural supplements provide livestock producers with a “clean-label” feeding option that may possibly replace sub-therapeutic antibiotic supplementation while simultaneously mitigating the potential negative effects of morbidity on growth and performance. The increases in performance observed with Saccharomyces cerevisiae supplementation coupled with decreased need of disease treatment may improve ultimate profitability

Immunity and Health

Performance and Metabolism

Conclusions