[1] Li X L, Wan L Q. Research progress on Medicago sativa silage technology. Acta Prataculturae Sinica, 2005, 14(2): 9-15. [2] Li G Y, Zhang L J, Sun Q Z, et al. Comparison of the nutrition character of alfalfa in different growth stages. Cereal and Feed Industry, 2014, (5): 44-46. [3] McDonald P, Henderson A R, Heron S J. The Biochemistry of Silage [M]. 2nd. England: Chalcombe Publications, 1991. [4] Yu Z, Sun Q Z. Silage Processing Technology [M]. Beijing: China Agricultural University Press, 2011: 100-114. [5] Messman M A. Changes in total and individual proteins during drying, ensiling, and ruminal fermentation of forages. Journal of Dairy Science, 1994, 77(2): 492-500. [6] Sniffen C J, O'connor J D, Van Soest P J, et al. A net carbohydrate and protein system for evaluating cattle diets: II. Carbohydrate and protein availability. Journal of Animal Science, 1992, 70(11): 3562-3577. [7] Han K J, Collins M, Vanzant E S, et al. Bale density and moisture effects on alfalfa round bale silage. Crop Science, 2004, 44(3): 914-919. [8] Xu Q F, Yu Z, Han J G, et al. Determining organic acid in alfalfa silage by HPLC. Grassland and Turf, 2007, (2): 63-65. [9] Bolsen K K, Lin C, Brent B E, et al. Effect of silage additives on the microbial succession and fermentation process of alfalfa and corn silages. Journal of Dairy Science, 1992, 75(11): 3066-3083. [10] Van Soest P J. Use of detergents in the analysis of fibrous feeds. II. A rapid method for determination of fiber and lignin. Association of Official Analytical Chemists, 1963, 46: 829-835. [11] Dubois M G K A H. Colorimetric method for determination of sugars and related substance. Analytical Chemistry, 1956, 28(3): 350-356. [12] Licitra G, Hernandez T M, Van Soest P J. Standardization of procedures for nitrogen fractionation of ruminant feeds. Animal Feed Science and Technology, 1996, 57: 347-358. [13] Van Soest P J, Sniffe N C J, Mertens D R, et al. A net protein system for cattle: The rumen submodel for nitrogen [C]//Owens F N. Protein Requirements for Cattle: Proceedings of an International Symposium. Stillwater: Oklahoma State University, 1981: 265. [14] Xue Y L, Bai C S, Yu Z, et al. Effects of different additives on the silage quality of alfalfa fibrous residues. Acta Agrestia Sinica, 2007, 15(4): 339-343. [15] Zhu H S, Dong K H. Effect of different additives on Medicago sativa silage quality. Grassland and Turf, 2009, (4): 40-44. [16] Haigh P M, Parker J W G. Effect of silage additives and wilting on silage fermentation, digestibility and intake, and on live weight change of young cattle. Grass and Forage Science, 1985, 40: 429-436. [17] Yuan X J, She C Q, Shimojo M, et al. Improvement of fermentation and nutritive quality of straw-grass silage by inclusion of wet hulless-barley distillers’ grains in Tibet. Asian-Australasian Journal of Animal Sciences, 2012, 25(4): 479-485. [18] Rooke J A, Armstrong D G. The importance of the form of nitrogen on microbial protein synthesis in the rumen of cattle receiving grass silage and intrarumen infusions of sucrose. British Journal of Nutrition, 1989, 53: 691-708. [19] McKersie B D. Effect of pH on proteolysis in ensiled legume forage. Agronomy Journal, 1985, 77: 81-86. [20] Anil L, Park J, Phipps R H. The potential of forage-maize intercrops in ruminant nutrition. Animal Feed Science and Technology, 2000, 86: 157-164. [21] Pys J, Migdal W. Effect of lactic acid bacterial inoculant with enzyme and rolled barley additive on the chemical composition and protein degradation of alfalfa silage. Biotechnology in Animal Husbandry, 2002, 18: 33-44. [22] Bai C S. Study on the Changes and Its Mechanism of Protein Degradation in the Total Mixed Ration Silages [D]. Beijing: China Agricultural University, 2012. [1] 李向林, 万里强. 苜蓿青贮技术研究进展. 草业学报, 2005, 14(2): 9-15. [2] 李光耀, 张力君, 孙启忠, 等. 苜蓿不同生育期营养特性的对比分析研究. 粮食与饲料工业, 2014, (5): 44-46. [4] 玉柱, 孙启忠. 饲草青贮技术 [M]. 北京: 中国农业大学出版社, 2011: 100-114. [8] 许庆方, 玉柱, 韩建国, 等. 高效液相色谱法测定紫花苜蓿青贮中的有机酸. 草原与草坪, 2007, (2): 63-65. [14] 薛艳林, 白春生, 玉柱, 等. 添加剂对苜蓿草渣青贮饲料品质的影响. 草地学报, 2007, 15(4): 339-343. [15] 朱慧森, 董宽虎. 不同添加剂对苜蓿青贮品质动态变化的影响. 草原与草坪, 2009, (4): 40-44. [22] 白春生. 饲草型发酵混合饲料蛋白质降解动态及其机理研究 [D]. 北京: 中国农业大学, 2012. |