The silage quality of characteristic shrub Sophora davidii in karst mountainous area

For rational developing and utilizing the resources and promoting the sustainable development of ecological animal husbandry in Guizhou karst mountainous area, the quality of characteristic shrub Sophora davidii after silage with individual additives or combination which including lactic acid bacteria, cellulose enzyme, formic acid, sucrose and combination of lactic acid bacteria + cellulose enzyme and lactic acid bacteria + cellulose enzyme + formic acid + sucrose were studied to select optimal ensiling conditions which provide technical supports for the extension and storage of the forage resources in Guizhou karst areas.The results showed that the silage had good sensory qualities with low pH (3.97～4.73), ammonia nitrogen (3.76%～12.23%), acid detergent fiber (30.70%～42.16%), neutral detergent fiber (48.37%～61.84%) and total tannins (0.63%～0.89%) and high crude protein (16.83%～20.10%). The additives improved ensiling and sensory quality which decreased the pH and ammonia nitrogen content. The optimal additives for S. davidii was sucrose which achieved the best silage with good sensory qualities, low pH (3.97) and ammonia nitrogen (5.67%), and high crude protein (19.89%).