论文部分内容阅读
试验采用L_9（3~4)正交试验设计,塑料袋青贮,探讨了不加氨、按15.6克和30克液氨/公斤（干物质）加氨三种用量;青贮时、青贮成功后一次充氨及青贮时和青贮成功后两次充氨三种充氨方式;鲜燕麦草、青玉米秆、鲜稻草三种饲草原料,对青贮饲料质量的影响。结果表明,充氨可以显著提高青贮饲料中粗蛋白含量（P<0.05）,且有提高真蛋白含量的作用。两次充氨和青贮成功后一次充氨,比青贮时一次充氨显著地提高青贮饲料中乳酸含量、降低pH值（P<0.05）,有改善青贮饲料质量的作用;三种原料中,以玉米秆效果最好,鲜稻草居中,燕麦草最差。
The experiments were designed by L_9 (3 ~ 4) orthogonal design and plastic bag silage. The effects of adding 15.6 g of ammonia and 30 g of liquid ammonia / kg (dry matter) plus ammonia without ammonia were discussed. When silage was successful, Ammonia and silage and silage after the success of two ammonia charging three ways; fresh oat straw, green corn stalks, fresh straw three forage materials, the quality of silage. The results showed that adding ammonia can significantly increase the crude protein content of silage (P <0.05), and increase the content of true protein. Once the two charge of ammonia and silage were successful, one charge of ammonia was added, and one charge of ammonia in silage significantly increased the content of lactic acid in silage and decreased the pH (P <0.05), which could improve the quality of silage. Among the three raw materials, Corn stalks best, fresh straw, oat grass worst.