Introduction
- Gastrointestinal tracts of higher animals are colonized by several microorganisms.
- The use of fibrous vegetation by herbivores depends on the metabolic activities of anaerobic microbial population that are present in the fermentation sites such as rumen and the large intestine.
- Ruminant animals like cattle, sheep, goats, deer etc. have a stomach that consists of a non-secretary fore-stomach and secretary stomach.
- The fore-stomach consists of three (3) compartments; the reticulum, the rumen and the omasum and it (fore-stomach) serves as a fermentation vase/site for the microbial fermentation of the ingested food and mainly by hydrolysis and anaerobic oxidation