An experiment was conducted to evaluate the influence of exogenous fibrolytic enzymes on growth performance
and digestion in steers grazing stargrass and supplemented with concentrate and sugarcane fermented. Solid state
fermentation of sugar cane (SSFSC) was whole sugarcane chopped, added (dry matter basis) with urea (1.5%)
and mineral premix (0.5%), and kept under shadow for 24 h. Twenty crossbreed (BrahmanBrown Swiss) steers
(287914.1 kg) grazing stargrass were individually supplemented with SSFSC (free access for 1-h period) and
concentrate (1 kg/head) by 100 d. Steer were randomly assigned to concentrate with 0, 15 or 30 g fibrolytic
enzyme/kg concentrate. As enzyme level increased, daily gain, intake, digestion, and improved feed conversion
were linearly improved.
Keywords: digestion; fibrolytic enzymes; growth performance; sugar cane