Shanghai Milk Cow Breeding Center presently boasts 130 seed bulls, each of which has its serial number. Last year, the output values of the frozen sperm of seed bulls were as follows: the highest was number 12,510 with an output value of RMB 1.34 million yuan; the second highest was number 12,513 with an output value of RMB 1.27 million yuan; the third highest was number 30,201 with an output value of RMB 1.12 million yuan.

Presently, the domestic market has a demand for the frozen sperm of seed bulls worth of RMB 80 million yuan, which is increasing by 20 percent every year. In China two seed bull breeding centers have been established in Beijing and Shanghai. The sales volume of the frozen sperm of seed bulls in Shanghai accounted for RMB 17 million yuan last year and the figure is expected to reach RMB 27 million yuan this year.