Baker C M
Anim Blood Groups Biochem Genet. 1982;13(3):199-212. doi: 10.1111/j.1365-2052.1982.tb01581.x.
It has been claimed that the origin of the South Devon breed of cattle is 'unknown' and that biochemical polymorphisms '. . . indicate that Gelbvieh and South Devon had a common ancestry on the Continent and are distinct from other British breeds such as Hereford, Angus and Jersey' (Kidd et al., 1974). In fact, historical records indicate that the South Devon evolved largely from native Devon cattle and is a close relative of other English Lowland breeds such as the North Devon and Hereford. Information about crosses from other breeds makes no mention of the Gelbvieh but emphasises the contribution of Channel Island breeds, especially the Guernsey. Data for biochemical polymorphisms in the relevant breeds show agreement with the historical information and with the biogeography of the breeds involved.
据称，南德文郡牛品种的起源“不明”，而且生化多态性“……表明德国黄牛和南德文郡牛在欧洲大陆有共同的祖先，并且与其他英国品种如赫里福德牛、安格斯牛和泽西牛不同”（基德等人，1974年）。事实上，历史记录表明，南德文郡牛主要由本地德文牛进化而来，并且是其他英国低地品种如北德文郡牛和赫里福德牛的近亲。关于与其他品种杂交的信息没有提及德国黄牛，而是强调了海峡群岛品种的贡献，尤其是根西牛。相关品种生化多态性的数据与历史信息以及所涉品种的生物地理学情况相符。
