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在牦牛犊代乳饲料配方设计、筛选的基础上,对正常、健康的牦牛犊180头,进行应用试验示范,经测定牦牛犊日增重、牦牛犊死亡率、母牦牛挤奶量等指标,表明用牦牛犊代乳饲料饲喂牦牛犊完全能代替牦牛奶,在保证牦牛犊正常生长发育(分别比半哺乳对照组提高日增重0.034、0.01、-0.017千克/天.头)的同时,可显著增加母牦牛挤奶量(分别比半哺乳对照组增加挤奶量1.2、1.0、0.8千克/头.天)、降低牦牛犊死亡率(比半哺乳对照组降低死亡率1.62%),获得显著的经济效益(比半哺乳组分别增加2.54、1.76、1.23元/头.天;比全哺乳组分别增加4.39、3.39、2.81元/头.天,90天补饲期内分别比半哺乳对照组和全哺乳组提高经济效益137.45元和277.05元),且生态效益和社会效益也十分显著。
Based on the design and screening of yak calf milk formula, 180 normal and healthy yak calves were tested and demonstrated. The daily gain of yak calf, the death rate of yak calf, and the milk yield of yak were measured. The results showed that feeding Yak calves with yak calf milk substitute could completely replace yak milk. While ensuring the normal growth and development of yak calves (0.034, 0.01 and -0.017 kg / day, respectively) than the half lactation control group, Could significantly increase the milk yield of female yaks (1.2, 1.0 and 0.8 kg / d, respectively, than the semi-lactation control group), and reduce the death rate of yak calves (1.62% less than that of the semi-lactation control group) Significant economic benefits (increased by 2.54, 1.76 and 1.23 yuan per head respectively than the semi-lactation group and 4.39, 3.39 and 2.81 yuan / head respectively over the full lactation group, respectively, compared with the semi-lactation control Group and lactation group to improve economic efficiency of 137.45 yuan and 277.05 yuan), and the ecological and social benefits are also significant.