西藏当雄牦牛品种资源研究

通过对西藏当雄牦牛品种形成与发展，生态条件，外形特征，种群结构，生产性能，饲养管理等研究，结果发现，当雄牦牛形成历史悠久，具有毛，奶，肉等多种用途，与其他牦牛特别是西藏其他品种牦牛相比生产性能高，畜产品质好，遗传稳定，耐粗饲，适应高寒地区恶劣的自然条件和粗放的饲养管理，这是目前国内外其它牦牛品种无法替代的优良种质，属于珍贵的地方品种资源。

Research on Dangxiong Yak's Breed Resources in Tibet

Dangxiong yak in Tibet studied on it''s forment,development,ecologicl conditions,external physical characteristic,population,sex proportion,production performance,raising management.etc.The results indicated that:Dangxiong yak has lived many years.It''s fair,milk and meatare widely used.Compared with other race especialy yak in Tibet,Dangxiong yak''s reproductive capacity and livestock products are good.It''s heredity is steady.It eats coarse fodder and easily adapts bad conditions and can be raised extensively.Dangxiong yak is precious to other yaks.It is a valuable local resoure and should be protect very well.