断奶犊牛补饲配合精料配方筛选

目的]为了筛选出适合攀枝花市地区断奶犊牛补饲配合日粮营养配方。方法]选1.5~3月龄、体重100~180 kg的西本杂犊牛共32头,随机分为4组,开展断奶犊牛补饲配合精料配方筛选试验。结果]经90 d的育肥,Ⅰ、Ⅱ、Ⅲ、Ⅳ组头均增重分别为40.63 kg、试验46.38 kg、46.5 kg和47.63 kg。日增重Ⅱ、Ⅲ、Ⅳ组较I组分别提高14.16%、14.47%、17.24%;Ⅲ、Ⅳ组较Ⅱ组分别提高0.27%、2.70%;Ⅳ组较Ⅲ组提高2.42%,组间差异均不显著（P〉0.05）。从经济效益看,I、Ⅱ、Ⅲ、Ⅳ、组头均纯收入分别为102.6元、219.44元、174.63元、140.02元,Ⅱ组较I组提高113.88%、较Ⅲ组提高25.66%、较Ⅳ组提高56.72%,Ⅱ组的经济效益高于其它组。结论]试验结果表明,Ⅱ号配方是断奶西杂犊牛较为理想的补饲配合精料配方。

Screening of Concentrate Formula of Weaned Calves with Supplementary Feeding

【Objective】In order to select the supplementary feeding with dietary nutritional supplements for weaning calves in the area of Panzhihua City.【Method 】32 weaned hybrid calves of Semmental and local cattle about 1.5～3 months old with 100～180 kg body weight were selected to carry out the screening test of concentrate formula with supplementary feeding.The calves were randomly divided into four groups.【Result】After 90 days of fattening,the average gain weight per calf of I,Ⅱ,Ⅲ and Ⅳ groups increased 40.63 kg,46.38kg,46.5 kg and 47.63 kg,respectively.As to ADG,group Ⅱ,Ⅲ and Ⅳ increased 14.16%,14.47% and 17.24% than that of group I.While Group Ⅲ and Ⅳ increased 0.27% and 2.70% more than that of group Ⅱ,group Ⅳ increased 2.42% than group Ⅲ.There was no significant difference between the two groups（P0.05）.From the economic view,the average net income of groupⅡ,Ⅲ,Ⅳ and I was 219.44 yuan,174.63 yuan,140.02 yuan and 102.6 yuan,respectively.The economic benefits of group Ⅱ was much better than other groups.Group Ⅱ increased 113.88%,25.66% and 56.72% than Group I,Ⅲ and Ⅳ.【Conclusion】The results show that NoⅡ was an ideal concentrate formula for hybrid Simmental weaning calves.