Examples of alternatives to antibiotics: non-antibiotic feed additives
✔️Probiotics (“direct-fed microbials,” “viable microbial products”): Live microbial supplements with defined microorganisms that beneficially affect the host by improving its intestinal microbial balance.
✔️Enzymes: Substances produced by a living organism that help convert a less digestible component of feed (e.g., sugar, fiber, protein) into a more easily absorbed form for animals to utilize.
✔️Prebiotics: “A selectively fermented ingredient that results in specific changes in the composition and/or activity of the gastrointestinal microbiota, thus conferring benefit(s) upon host health” (ISAPP, 2008).
✔️Yeasts: There are 1,500 different yeast species, with a few being used as agriculture feed additives. Saccharomyces cerevisiae can be used in many different forms, including a whole live yeast, the outer yeast cell wall, the inner yeast cell wall and the yeast extract.
✔️Mannan Rich Fraction (MRF): A second-generation form derived from nutrigenomics analysis of Saccharomyces cerevisiae mannan oligosaccharides. Research has demonstrated that MRF can support immune defense, gut microbial health, gut function and development.
✔️Organic acids: Acids with weak acidic properties that do not separate completely in the presence of water. Some examples of organic acids are citric acid, short-chain fatty acids (e.g., acetic, butyric acid) and medium-chain fatty acids (e.g., lauric, caproic acid). Each type of organic acid has unique properties and can be used for different purposes in poultry production.
✔️Inorganic acids: Mineral acids that contain no carbon atoms and break down completely in the presence of water (e.g., phosphoric acid). Often used to make the pH of water or feed more acidic quickly.
✔️Phytobiotics: Plant compounds and extracts from herbs and spices with multiple benefits, including antimicrobial, anticoccidial and immune support.
READ ALSO: How to make Biosecurity work on your farm
✔️Postbiotics: Soluble, non-viable metabolites produced by a bacterial or probiotic metabolic process that can reduce the gut pH, prohibit opportunistic pathogen proliferation and enhance host health (Aguilar-Toalá et al., 2018).