Effects of enzyme preparation on mixed silage from Myriophyllum elatinoides, corn flour, and rice straw powder

The mixed silage materials of Myriophyllum elatinoides, corn flour, and rice straw were 70% ꞉ 15% ꞉ 15% for fresh ingredients. Cellulase, xylanase, or composite cellulase was added to the mixed silage but not in the control group. The effects of different enzyme preparations on fermentation quality, nutritional quality, and aerobic stability of mixed silage from M. elatinoides were studied. Compared with the control, the addition of enzyme preparation significantly reduced pH, ammonia nitrogen/total nitrogen (P < 0.05), and significantly increased soluble carbohydrate content (P < 0.05). The sensory score, V-score, pH, ammonia nitrogen/total nitrogen, and lactic acid content of the compound cellulase treatment group were the best. The xylanase treatment group had the best aerobic stability. The cellulase treatment group had the highest crude protein, neutral detergent fiber content, V-score, pH value, and ammonia nitrogen / total nitrogen; these fermentation-related indicators belong to the category of high-quality silage fermentation. Comprehensive fermentation quality, nutritional quality, and aerobic stability of the cellulase treatment group had the best effect.