Abstract

Taihu pigs are well known by their prolificacy, the litter size andlive litter are 15.83 and 14.24, respetively. The Landrace may give better daily gain in crossing with Taihu, for example from 350g for Taihu to 450g for FI crosses, the large White give 505g in next crossing. The experiments showed that inter se crossing among FI animals supplied better daily gain, keeping high litter size and live litter as 13.2 and 12.95, respectively.Selection on introduced LH level may increase the ovulation number, the tm of the LH is 0.636(halfsib). Inter se Fl-crossing may keep high performances. According to serun polymorphism, body statue, cytological and historical records Chinese Yellow cattle were suggested as special ecospecies. different from Bos indicus and Bos taurus. The local breeds in northern China are of turano-mongolian, the local breeds in southern China are more complicated, they have blood of Bos indicus,bos Banteng and some blood from Bos gaurus. The high TfF gene frequency(0.848) proved their speciality. Crossing of them with Holstein and Sinmantal must good in milk and meat industry

C. Youchun

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume XIV. Dairy cattle genetics and breeding, adaptation and conservation., , 377–379, 1990
Download Full PDF BibTEX Citation Endnote Citation Search the Proceedings



Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.