3[1] Alderson L. The Chance to Survive[M]. A.& C. Black London. 1989.
4[2] Blackburn H. et al. Animal genetic resources and sustainable development[A]. 6WCGALP/FAO Symposium[C], Armidale, Australia. 1998.
5[3] Campo J. L. Conservation and genetical study of Spanish chicken breeds[A]. 2WCGALP[C], Madrid, Spain. 1982.6．
6[4] Carwford R. D. Status of rare and feral domestic animal stocks in Canada and United States[A]. 2WCGALP[C], Madrid, Spain. 1982.6．
7[5] FAO/UNDP World Watch List for Domestic Animal Diversity. 2nd Edition[C], Rome. 1995.
8[6] Mariante A da S. et al. Animal genetic resources and sustainable development in the Americas[A]. 6WCGALP/FAO Symposium[C], Armidale, Australia. 1998.
9[7] Sarmiento F.H. et al. Animal genetic resources and sustainable development in Asia and the Pacific[A]. 6WCGALP/FAO Symposium[C], Armidale, Australia. 1998.
10[8] Wu Ch. Conservation of animal genetic resources and potential of animal agriculture in China[A]. 4WCGALP[C], Endinburgh, UK.1990.14．
