The use is provided of a composition as a feed additive which comprises one or more endoglucanases, and 0–20% by weight, based upon the content of cellulase proteins in the composition, of a cellobiohydrolase. The endoglycanases may be one or more of EGI, EGII, EGIII and any functionally active derivative...http://www.google.co.uk/patents/US7005128?utm_source=gb-gplus-sharePatent US7005128 - Enzyme feed additive and animal feed including it