引进红安格斯牛的适应性研究

Study on Adaptability of Red Angus in Shaanxi

中文关键词: 红安格斯牛  适应性  生长发育  繁殖

英文关键词: Red Angus cow  Adaptability  Growth and development  Reproduction

中文摘要:

      [目的]对从国外引进的69头红安格斯母牛及其繁殖后代的适应性进行了研究.[方法]通过对红安格斯牛的初重,6月龄,12月龄,18月龄,24月龄体尺、体重的测定和繁殖情况统计.[结果]显示自繁红安格斯母牛到周岁体重为369.53 kg,低于国外400 kg的水平.但到2岁体重达到534.39 kg,在正常指标(500～600 kg)范围内;母牛的产犊率为101.54%,流产率为8.46%,犊牛断奶育成率为88.82%,断奶前死淘率为11.18%.母牛繁殖正常,但流产率较高,犊牛断奶育成率不理想;同时红安格斯牛表现出耐粗饲,采食量大,发病率低等优点.[结论]表明红安格斯母牛能够较好地适应引入地的饲养条件,具有良好的适应性.但妊娠母牛和犊牛的饲养管理方面还需要加强和提高.

英文摘要:

      To investigate the adaptability of introduced sixty nine Red Angus cows and their offsprings raised in Yangling of Shaanxi,body sizes and body weights at birth,6 month age,12 month age,18 month age and 24 month age,and reproduction performance were recorded and analyzed.Body weight of 1-year-age Red Angus cows reaches 369.53 kg,which was lower than the level of 400 kg abroad.At 2-year age,the body weight shows 534.39 kg,which was in the normal range(500~600 kg) recommended abroad.The calving rate of cows wa...