Effects On Production And Pormance Of Different Milk Replacer In Early Weaning Before And After Bull Calf

Test selection, weight, date of birth, close genetic basic similar, in good health of Holstein bull calf18head, Three group of calf initial weight by analysis of variance, no significant difference (p>0.05),USES the completely random design, divided into three groups, each group of six. Control group fed milk, feeding experimental group1domestic milk replacer (accurate), group2feeding import milk replacer (optimal milk), feeding and60d weaned. By comparing different diet feeding experiment group three calves prior to weaning production performance, infection situation and economic benefit, blood biochemical indexes. And follow-up the production performance and economic benefit of a few differences, it is concluded that different milk replacer milk before and after the early weaning bull calf growth and development. Aims to seek a in NingXia, through test, the most cultured calf under the condition of feeding mode, enhance the survival rate of calf, at the same time reduce the calf raising costs before weaning. The results are as follows:Test one different milk replacer breast before early weaning calf production on the performance and blood biochemical indexes.(1) the production performance:â‘ the weight, import groups for milk and domestic extremely significant differences between groups, no significant difference between domestic and milk group;â‘¡body measurements index,no significant difference among three groups.â‘¢incidence, the experiments are mainly diarrhea, diarrhea rate was the highest import group, the lowest for milk group;â‘£economic benefits, feed remuneration is the lowest import group, is the highest milk group, import group of the most profitable, domestic set times, minimum milk group.(2) blood biochemical indicators, no significant difference among three groups, and are within the normal range.Test two different milk replacer on the breast after early weaning calf production performance.â‘ Weight, show very significant difference between three groups;â‘¡Body measurements, three groups began to travel between the opposite sex, among which the most obvious import;â‘¢Economic benefits, milk and import group can maintain relatively stable growth, and greatly reduced the growth of domestic group of economic benefits.Above all import milk replacer (optimal) in both the calf production performance and economic benefit is superior to the other two.