【摘要】 利用丰都县包鸾镇和高家镇的繁殖母牛 ,2 0 0 0年至 2 0 0 3年 4月中的繁殖资料进行统计分析 ,对当地农户肉牛的饲养情况进行调查。肉牛的产犊间隔平均为 390 .2 5± 80 .63d,其中包鸾镇为 382 .77± 68.0 2 d,高家镇为 45 1 .5 1± 1 0 9.67d。并对影响产犊间隔的一些因素 (年龄、分娩季节、海拔高度、输精员的技术水平、营养水平 )进行了分析。更多还原

【Abstract】 A study was carried out to investigate the reproductive data and feeding condition of reproductive cattle in Baoluan town and Gaojia town in Fengdu county from 2000 to 2001.The results showed the average reproductive interval was 390.25±80.63 d,and that in Baoluan was 382.77±68.02 d,that in Gaojia was 451.51 ±109.67 d.Finally the factors influencing the reproductive interval were also analyzed (including the age,reproductive season, altitude,nutritional level,technical level of operator).更多还原