【摘 要】
：
经过三年半的时间,对43头2～8岁的法系西门塔尔母牛选用进口德国弗莱维赫牛及贵州省家畜冷冻精液站法系西门塔尔牛冷冻精液进行人工授精,在相同的饲养管理条件下,观察其后代的
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经过三年半的时间,对43头2～8岁的法系西门塔尔母牛选用进口德国弗莱维赫牛及贵州省家畜冷冻精液站法系西门塔尔牛冷冻精液进行人工授精,在相同的饲养管理条件下,观察其后代的繁殖率及健康情况,并测定其生长发育指标.结果显示:人工授精后情期受胎率分别为81.81%和76.19%,产犊率分别为54.55%和61.19%,繁殖成活率分别为83.33%和84.61%,表明弗莱维赫牛和西门塔尔牛的繁殖率比较接近,差异不显著(P＞0.05).试验期间所有后代未发生疾病,健康状况良好,2组均有胎儿过大致犊牛难产死亡情况发生.2个组合后代的初生重较大,母牛平均初生重分别为48.10 kg和42.42kg,差异显著(P＜0.05);公牛平均初生重分别为49.68 kg和47.46kg,差异不显著(P＞0.05).18月龄母牛平均体重分别为434.12 kg和431.6kg,差异不显著(P＞0.05);平均日增重分别为0.71kg和0.72 kg,2组间差异不显著(P＞0.05);18月龄公牛平均体重560.68 kg和546.44kg,差异不显著(P＞0.05),平均日增重分别为0.94kg和0.92kg,2组间差异不显著(P＞0.05).除母牛初生重差异显著外,其他各项生长指标差异不显著.
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