* The majority of the ruminant diet is composed of complex plant carbohydrates, for example cellulose. In the [[The Rumen|rumen]], these are broken down by fermentation by bacteria and protozoa. | * The majority of the ruminant diet is composed of complex plant carbohydrates, for example cellulose. In the [[The Rumen|rumen]], these are broken down by fermentation by bacteria and protozoa. |