娟姗牛与荷斯坦牛杂交一代的选育及生产性能观察初报

Preliminary Observation of Selection and Production Performance of F1 Hybrid of Jersey and Holstein Cattle

[目的]为了寻求适应广西高温高湿气候和饲养条件的优质奶牛,解决本地种源短缺的问题。[方法]用娟姗牛与荷斯坦牛进行品种杂交生产娟荷杂一代犊牛,对娟荷杂一代犊牛精心饲养,采用综合评分的方法筛选优秀个体作为核心群培育,对其生长发育、生产性能进行观察和分析。[结果]:生长性能、繁殖性能良好,奶牛耐粗饲养,泌乳稳定,鲜乳营养丰富、乳脂率高,奶牛耐热性和抗病力尤为突出,对广西高温高湿气候具有良好的适应性。[结论]说明利用娟姗牛与荷斯坦牛杂交具有明显的适应性。

【Objective】It was to find good quality milk cow adapting high temperature and moisture climate and feeding conditions in Guangxi region,and to solve the shortage of local breeds.【Method】The F1 hybrid calves from Jersey and Holstein cattle were well-groomed.The excellent individuals were to cultivate as core group by comprehensive scoring method.The growth and development and production performance were observed and analyzed.【Result】The calves had good production and reproductive performance,stable milk,and endured crude feed resistance.The fresh milk was rich in nutrition and high in percentage of fat.The cows had good adaptability especially in heat and disease resistance.【Conclusion】F1 hybrid from Jersey and Holstein had significant adaptability.