The effects of compound treatment of <i>Aspergillus oryzae</i> and fibrolytic enzyme on <i>in vitro</i> degradation, gas production and fermentative profile of maize silage and sugarcane silage

Abstract The present study was conducted to evaluate the effect of a live culture Aspergillus oryzae (A; CCT4359) and fibrolytic enzyme (E; Fibrozyme Alltech Inc.) on fibre digestibility by gas production bioassay in vitro degradation maize silage sugarcane silage. A completely randomized design trial performed evaluate: doses (0, 20, 60 100 mg/l), E 160, 320 480 mg/l) roughage source (R; silage) 4 × 2 factorial arrangement. inclusion increasing increased dry matter neutral detergent linearly, but for this occurred only There linear increase potential at highest dose silage, with no lag time (L). Increasing volume gases produced trend reduction L, regardless roughage. ammonia-nitrogen concentration response E, an acetic acid A, additives had synergistic digestibility, were efficient altering fermentative pattern, demonstrating degradation.