摘要
利用同期发情和人工授精技术,分别以褐牛和西门塔尔牛为父本,与新疆天山牦牛开展种间杂交,结果:产犊率为43.5%.西犏牛、褐犏牛、牦牛,公母平均初生体重分别为:32.5 kg、31 kg、20.2 kg,公母平均初生体高分别为 72.5 cm、63.7 cm、58 cm,公母平均初生体斜长分别为63 cm、61.3 cm、55.6 cm,公母平均初生胸围分别为82 cm、82.7 cm、67.6 cm,公母平均初生管围分别为12.5 cm、11.3 cm、10.8 cm.犏牛具有明显优势.
Abstract
Using synchronous estrus and artificial insemination techniques and taking Brown cattle and Sim-mental cattle as male parents,the crossbreeding was conducted in Xinjiang Tianshan yak.The results showed that the calving rate was 43.5%.Western Pianniu,Brown Pianniu,and yak had an average birth weight of 32.5kg,31kg,and 20.2kg for males and female calves.The average birth height was 72.5cm,63.7cm,and 58cm.The average birth body length was 63cm,61.3cm,and 55.6cm,the average birth chest circumference was 82cm,82.7cm,and 67.6cm,and the average birth tube circumference of 12.5cm,11.3cm,and 10.8cm,respectively.Pi-anniu had obvious advantages.
国家科技期刊平台
NSTL
万方数据