【摘要】 本试验针对夏南横交牛犊生长发育特点，采取提前补饲精料的办法，研究适时补饲对其日增重、断奶重的影响，探索提高其断奶体重的方法。从存栏的初生牛犊中，随机选择了37头夏南横交牛，分为试验组30头，对照组7头，试验期180d，试验结果：试验组平均初生重41．43kg，平均目增重0．88kg，6月龄时平均体重达199．57kg(实称重)；对照组平均初生重42kg，平均日增重0．73kg，6月龄时平均体重达173．43kg。试验组与对照组平均日增重经t检验差异极显著。更多还原

【Abstract】 According to the growth and development characteristics of calves of Charolais and Nanyang (CN) crossbreds, the concentrate supplementation in the early stage of the growth was conducted to investigate the effects of supplemental feeding on body weight gain and weaning body weight and find out the feasible method of increasing weaning weight. 37 new-born calves of CN crossbreds were selected and divided into experimental group of 30 calves and control group of 7 calves for 180 d experiment. The results showed that the mean birth weight, average daily gain, mean body weight at 6 month for experiment and control group were 41. 43 kg and 42 kg; 0. 88 kg and 0. 73 kg; 199. 57 kg and 173. 43 kg, respectively. The significant differences in average body weight gain between experiment and control group was noted.更多还原