Bacterial Species Involved

Lactobacillus is the genus that contains most of the bacteria considered for use as probiotics for animals. Included in this genus as potential probiotics are Lactobacillus acidophilus, Lactobacillus casei, Lactoba-cillus fermentum, and Lactobacillus reuteri. Species of Bifidobacterium, as well as species of Propionibacterium, have also been tested and proposed as probiotics for certain animals. Other species of microorganisms having potential include Streptococcus faecalis and species of Bacillus. These groups of microorganisms represent the major ones that have been observed in the scientific literature related to probiotics for livestock. It is very important to remember that one particular strain of one species of a given bacterial genus should not be expected to function in all species of animal or to provide all of the potential benefits for those animals.[3] Selection of the individual strains within species to be used is thus extremely important.

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