An excellent source of protein of high biological value and digestibility, brewer's yeast is a very valuable component of poultry rations, in which it is used, however, mostly for vitamins of the B complex and for unidentified but important growth factors in poultry production. Brewer's yeast is usually included at levels of 2-5% in rations forpoultry, but if the price of dried brewer's yeast is low, it can replace up to 80% of the animal protein in poultry diets provided that additional calcium is added.
Dried brewers yeast was found to be able to replace fish meal up to 9.26% in diets for broilers with no differences in growth and feed efficiency observed (2A)(AGRIS 89-093110)(Erguel, 1988)