Experimento de substituição da suplementação proteica por autolizado de fermento de cerveja na alimentação de vacas leiteiras da raça holstein-frisian

Abstract

The purpose of this paper is to demonstra te how the protein suplementation in Holstein-Frisian cows could be substituted by autolyzed beer yeast, a by-product of beer breving. Beer yeast is rich in aminoacids, vitamin and mine­rals. The beer yeast was given to the cows for six weeks,but no modification in the production of milk occurred during that period.