Pages: 21-25

Abstract

Condensed tannins and saponins are considered as anti-nutritional factors in the diets fed to the ruminants. Tannins are considered as inhibitors to growth of the ruminal bacteria by reducing the availability and digestibility of macro-nutrients and minerals, impeding cell wall function. Tannins bind with the dietary protein but are considered as anti-bloat in the rumen. However, saponins are found to be detrimental to the ruminal protozoa and are identified as defaunating agents. Saponins may cause the bloat in the rumen. Because tannins or saponins have some benefits for ruminants, it is not prefer to describe them as anti-nutritional factors.