一、前言随着自然生态环境的破坏和进一步恶化，可用于医学研究的灵长类动物品种、数量如报、猩猩等越来越少，有的已濒于灭绝，因而极大地限制了灵长动物的广泛使用［2，7］，目前急需开发新的非灵长类动物资源，替代灵长类用于医学实验动物．国内外实验证明，猪的解剖学和生? I. Introduction With the destruction and further deterioration of the natural ecological environment, the number of primate animals that can be used for medical research is getting smaller and fewer, while others have been on the verge of extinction, which greatly limits the primacy of primates The widespread use of [2,7], the urgent need to develop new non-primate resources, alternative primates for medical laboratory animals. Experiments show that domestic and foreign pigs anatomy and health?