科尔沁牛公犊早期补饲高档精料60日龄断奶及阶段育肥技术研究

Research on the Technique of Early Supplementary Feeding High-grade Concentrated Feed on Horqin Male Calf and Weaning in 60 Days

科尔沁牛公犊早期补饲高档精料60天断奶及阶段育肥技术研究结果表明:犊牛5日龄开始补饲高档精饲料、7日龄开始补饲优质干草,丰富了犊牛获取的营养种类,充分满足各种营养需要,早期补饲刺激瘤胃,促使整个消化系统的发育,增强消化吸收能力,从而加快犊牛生长发育速度,日增重可达0.774Kg,60日龄断奶体重可达79.29Kg,公犊进行61～120日龄和121～360日龄阶段育肥(12月龄)体重达513.18Kg,屠宰率达52.43%,育肥牛饲养期缩短6～12个月,有显著的经济效益.

The Research resuhs of early supplementary feeding High-grade concentrated feed on Horqin male calf, weaning in 60 days and the weight gain after periodical fattening shows that：It riched the species of nutrition obtained and adequately satisfy the need of nutrition to start to feed High-grade feed on 5 days aged calf and to feed high quality hay on 7 days aged calf.The supplementary feeding can stimulate rumen and promote the development of digestive sys- tem,enhance the digestive and absorptive capacity and thus increase the growth speed of calves. Therefore the daily gain can be reached 0.774Kg and the weaning weight of 60 days aged calf can be reached 79.29Kg.Periodically fatten the 61-120 days aged male calves and 121-360 days aged calves ,The weight of them can be reached 513.18Kg and the dressing percentage can be reached 52.43% .The feeding period will be reduced 6-12 months and the economic benefits are remarkable.