Application of microbial analyses to feeds and potential implications for poultry nutrition
2022
Elena G. Olson | Dana K. Dittoe | Joshua A. Jendza | David A. Stock | Steven C. Ricke
ABSTRACT: Poultry nutrition and feed manufacturing are interrelated for a variety of reasons. Diet formulation is essential for optimizing bird growth and feed conversion, but compositional differences and the presence of certain feed additives can alter the gastrointestinal microbial composition and functionality. Not only does dietary composition and digestibility influence poultry performance, but specific physical characteristics such as feed particle size and thermal treatments can impact the avian gastrointestinal tract (GIT) microbiota. Poultry feeds also have a characteristic microbial ecology consisting of pathogenic and nonpathogenic microorganisms. Some feed-borne pathogens such as Salmonella are well studied and linked with the colonization of birds consuming the feed. However, much less is known about the nonpathogenic feed microbiome and what impact that might have on the bird's GIT. This review discusses the potential interaction between poultry feed and the GIT microbiome, microbial ecology of feed, application of microbiome analyses to feed, and approaches for communicating these complex data sets to the poultry industry.
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