Direct-fed microbials (DFM) have been used in ruminant production for more than 30 years. DFM was originally used in young ruminants to stimulate the formation of the intestinal microflora involved in digestion and to improve gut health.

Further improvements have resulted in a more complex mixture of direct-fed microbials aimed at preventing rumen acidosis in older cows and improving digestion. To get more information about the direct fed microbials visit www.feedworks.com.au/direct-fed-microbials-for-poultry-5-key-attributes

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During these fiber digestion/stomach health outcomes, second-generation DFMs have also led to advances in milk production, growth, and cow feeding efficiency, but the results are uncertain.

The U.S. Food and Drug Administration and the Association of American Feed Control Officers describe DFM as a diet containing a natural source of life or microorganisms.

Direct-fed microbes have been used in livestock for many years, mainly to increase growth efficiency, milk production, or feed conversion efficiency.

Most of the studies trying to identify possible mechanisms of action have investigated the efficacy of DFM to positively alter digestion in the rumen by modulating ruminant acid production, promoting the identification of desired rumen microbial population, or improving ruminal fiber digestion.

Direct fed microbial have the potential to reduce reliance on antimicrobial agents to improve health and optimize livestock productivity. For DFM to be adopted, the positive production response that results from their administration must be predictable and consistent.