Han-yang

References

Food and Agriculture Organization (FAO) of the United Nations. (2007). EXTINCT BREEDS LIST. Domestic Animal Diversity Information System (DAD-IS). ftp://ftp.fao.org/docrep/fao/011/a1250f/annexes/List-breeds-at-risk/extinct_2007.pdf

Mason, I. L. (Ed.). (1980). 4. PROLIFIC BREEDS IN THE SUBTROPICS. prolific tropical sheep. https://www.fao.org/4/x6517e/X6517E05.htm

Mason, I. L. (Ed.). (1980). 5. CONCLUSIONS AND RECOMMENDATIONS. prolific tropical sheep. http://www.fao.org/docrep/004/x6517e/X6517E06.htm

Porter, V., Alderson, L., Hall, S. J. G., & Sponenberg, D. P. (2016). Mason’s World Encyclopedia of Livestock Breeds and Breeding: 2 Volume Pack (1st ed.). Wallingford, Oxfordshire, UK: CABI.

大尾寒羊和小尾寒羊，到底有什么区别？只是尾巴大小吗？放一起看. 搜狐. (2021, December 13). https://www.sohu.com/a/507878786_121119207 (in Chinese)

寒羊. 百度百科. (2025, September 26). https://baike.baidu.com/item/寒羊/4763771 (in Chinese)