娟姗牛与西杂牛杂交后代生长发育观测

Observation on the Growth and Development of the Hybrid Offspring of Jersey and Simmental crossbred Cattle

中文关键词: 娟姗牛  西杂牛  杂交后代  生长发育  配种

英文关键词: Jersey  simmental crossbred cattle  hybrid offspring  growth and development  breeding

中文摘要:

      [目的]旨在繁育适于牦牛杂交改良的乳肉兼用父本。[方法]在海拔相对较低的半农半牧区，用娟姗牛与西杂牛杂交，观察杂交后代的生长发育和配种情况。[结果]娟姗牛与西杂牛的杂交后代在甘南州高海拔地区具有较好的适应性，表现出明显的杂交优势，能与甘南牦牛自然交配。

英文摘要:

      [Objective]The aim is to breed male parents with milk and meat?suitable for?hybridization and improvement?of yak.[Methods]In a semi-agricultural and semi-pastoral area with a relatively low altitude,Jersey was hybridized with simmental crossbred cattle?to observe the growth and breeding situation of hybrid offspring.[Results]The hybrid offspring of Jersey and simmental crossbred cattle?have good adaptability in the high-altitude areas of Gannan Prefecture,showing obvious hybridization advantages, and can natural mate with Gannan yak.