Digestibilidade aparente dos nutrientes e balanço de nitrogênio de cordeiros terminados em confinamento alimentados com resíduo úmido de cervejaria como fonte de volumoso

Abstract

The objective of this experiment was to evaluate the effect of wet brewery residue (RUC) levels as a forage source on the apparent digestibility of nutrients and nitrogen balance of feedlot lambs. The treatments consisted of four levels of RUC as forage, as follows: 31; 44; 57 and 70 % on a dry matter basis. The increase in the level of RUC as a roughage in the diet leads to a linear decrease (P≤0.01) of the digestibility coefficients of dry matter and organic matter. N intake decreased linearly (P≤0.05) with increasing dietary RUC level.