The Extension Of Rubeibao, Rubeili And Multi-function Management Software Of Dairy Cattle Of Improving Profit Of Dairy Strict In North Of China

A series of experiments in this article were conducted to investigate how to resolve theshortcomings of dairy cows breeding strict in North of China.Exp.1 The Effect of Starter "Rubeibao" on the Growth and Development of Early WeaningCalvesThe technology of the calf breeding by early weaning has been studied since 1960s' and is now widely in practice in developed countries. But in our country, there is still no calf starter used especially for the early weaning calves. The calf starter "Rubeibao" developed by China Agricultural University can effectively promote the development of the rumen nipple, improve the quality of the calf and decrease the cost of the calf breeding.10 newborn calves of Chinese Holstein were randomly assigned to 2 groups to study the effect of starter "Rubeibao" on the growth and development of early weaning calves. The conclusions were reached as follows: 1. There is no bad effect on the growth and development of early weaning calves. 2. By the time of weaning, there were no differences on the aspect of daily average gain, height, body length, heart girth and the barrel. 3. Comparing with the traditional method, "Rubeibao" can save the feed cost of 204.5 yuan. Exp.2 Impact of High-Energy and High-Protein Supplementary Feed "Rubeili" on MilkPerformance of Dairy CattleHigh-energy and high-protein supplementary feed "Rubeili" developed by China Agricultural University can effectively make up the energy negative balance and reduce body-condition loss, increase milk production and prolong peak-period of milk lactation The experiment was conducted in ChangYang Dairy farm of Beijing Sanyuan Dairy Group ,the amount of addition "Rubeili" is 1.5kg ,the control group was added with 2kg former supplementary feed, but the basal ration between the two groups are the same. As experimental results indicate: two experiment groups of both first calving and multiparous dairy cattle got significant improvement when compared to control groups in milk production, the differences are 2.85kg/day and 1.36kg/day respectively (P<0.05) ,the peak periods have a tendency to prolong, 35 and 30 days respectively (P>0.05) ,but the main milk composition of milk fat and milk protein contents in the two groups weren't affected by the additionof Rubeli (P>0.05) .Exp.3 Effect of Multi-function Management Software of Dairy Cattle in Dairy FarmI spread the software by participation , selecting Beijing Yanqing xinglipeng dairy breeding center, Miyun Xuzhenhong dairy strict, Beijing Sanyuan Group and Liaoning Anshan Hengli dairy farm as base to use the software from October,2003 to September,2004. The impact is significant.