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提高犊牛饲养效率是目前奶牛养殖业需要解决的关键问题。本试验以犊牛为研究对象,采用分阶段“饲喂初乳(1~3日龄)+定时定量牛奶(或自由采食酸化牛奶)+犊牛颗粒料”、60日龄断奶的饲养程序,定期监测犊牛生长指标,研究酸化奶对犊牛生长发育的影响。结果表明:使用酸化奶自由采食模式对30日龄和60日龄的犊牛体重、体尺等生长指标没有不良影响,但是由于30~60日龄自由采食酸化奶影响了颗粒料的采食,使得60日龄胸围日增量显著低于对照组,有可能影响了瘤胃发育,故建议在30~60日龄期间酸化奶定量饲喂,并加强诱导犊牛颗粒料的采食,以促进瘤胃的发育。
Improving the feeding efficiency of calves is the key problem to be solved in dairy farming. In this study, calves were used as the research object. The experiment was carried out in stages of “feeding colostrum (1 ~ 3 days old) + regular quantitative milk (or free intake of acidified milk) + calf granules”, weaning Breeding program, regular monitoring of calf growth indicators, the impact of acidified milk on calf growth and development. The results showed that there was no adverse effect on body weight, body size and other growth indexes of 30-day-old and 60-day-old calves fed with acidified milk free-letting mode. However, due to free intake of acidified milk at 30 to 60 days, So that the daily increment of 60-day-old bust was significantly lower than that of the control group, which may affect the development of the rumen. Therefore, it is suggested that the acidified milk should be rationally fed during 30-60 days of age and the intake of calf grain should be enhanced to Promote rumen development.