目的 为了解决奶牛养殖企业在降低断奶犊牛培育饲料成本上存在的难点。方法 本试验在天津嘉立荷牧业集团有限公司断奶犊牛饲养管理技术水平上,对犊牛前期配合料进行营养水平调整,研发新的犊牛后期配合料,并对比两种犊牛颗粒料在断奶犊牛中的饲喂效果。结果 饲喂两种犊牛颗粒料,断奶犊牛日粮总采食量、日增重、日增体高、日增体斜长和日增腹围无差异（P>0.05）,其中平均日粮总采食量分别为5.70 kg和5.90 kg,平均日增重分别为1.20 kg和1.22 kg,平均日增体高分别为0.23 cm和0.22 cm,平均日增体斜长分别为0.27 cm和0.28 cm,平均日增腹围分别为0.43 cm和0.44 cm;饲喂了犊牛后期配合料,断奶犊牛腹泻率降低了0.20 个百分点,日粮采食成本可节约133.98 元/头·d;日增重成本可节约24.36元/头·d。结论 犊牛后期配合料既能降低断奶犊牛培育的饲养成本,又能满足断奶犊牛生长发育营养需要。

[Objective] In order to solve the difficulties in reducing the feed cost of weaned calves in dairy enterprises. [Methods] Based on the feeding and management technology level of weaned calves in Tianjin Jialihe Husbandry Group Co.,Ltd.,this experiment adjusted the nutritional level of the early calf compound,developed new calf late calf compound,and compared the feeding effects of two kinds of calf pellet in weaned calves. [Results] There was no significant difference in total feed intake, daily gain,height of daily gain,oblique length of daily gain and abdominal circumference of weaned calves fed two kinds of pellet diets （P > 0.05）. The average total feed intake was 5.70 kg and 5.90 kg and the average daily gain was 1.20 kg and 1.22 kg,respectively. The average ADG height was 0.23 cm and 0.22 cm,the average ADG oblique length was 0.27 cm and 0.28 cm,and the average ADG abdominal circumference was 0.43 cm and 0.44 cm,respectively. The diarrhea rate of weaned calves was reduced by 0.20 percentage point and the cost of dietary intake was reduced by 133.98 yuan/h·d after feeding the late compound. The daily weight gain cost can be saved 24.36 yuan/h·d.[Conclusion] The late calf compound can not only reduce the feeding cost of weaned calves,but also meet the growth and development nutritional needs of weaned calves.