【摘要】 为合理开发利用贵州喀斯特山区资源,促进其生态畜牧业可持续发展,以该区域特征灌木白刺花(Sophora davidii)为研究对象,开展单独青贮与添加剂青贮(乳酸菌、纤维素酶、乳酸菌+纤维素酶、甲酸、蔗糖和乳酸菌+纤维素酶+甲酸+蔗糖)研究,以探讨其可青贮性与最优青贮技术,为贵州岩溶山区粗饲料资源的开拓及贮存提供可借鉴的方法与技术支持。结果表明,白刺花青贮饲料感官品质较好,pH值(3.97~4.73)和氨态氮/总氮(3.76%~12.23%)较低,纤维和单宁总体下降,酸性洗涤纤维(30.70%~42.16%)、中性洗涤纤维(48.37%~61.84%)和单宁(0.63%~0.89%)较低,蛋白质下降幅度不大或略有上升,含量(16.83%~20.10%)较高,品质较好;添加剂处理可改善其感官品质,降低pH值、氨态氮/总氮(降幅8.26%~69.26%)与酸性洗涤纤维含量(降幅7.78%~27.18%),提高青贮品质;其中蔗糖(3%FM)处理感官品质最好,pH值(3.97)和氨态氮/总氮(5.67%)较低,蛋白质(19.89%)较高,青贮品质最好,是白刺花青贮的最适添加剂。更多还原

【Abstract】 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%).更多还原