上海开埠以后,纷至沓来的西方人带来了他们母国的生活习惯,喝牛奶就是欧美城市居民的主要日常习惯之一。然而,江南一带,一直以种植业为主,缺乏乳用牛种。因此,想要喝牛奶的侨民只能在用于农耕的水牛或者黄牛的泌乳期才能喝上牛奶。这种现象不仅仅发生在上海,香港、台湾等通商口岸都有过以耕牛取乳的历史~(1)。对于农民来说,利用耕牛泌乳期来售奶是一种成本低廉,利润 After the opening of Shanghai, Westerners brought in a lot have brought about the habit of their home country. Drinking milk is one of the main daily habits of urban residents in Europe and the United States. However, the area south of the Yangtze River has been dominated by farming and lacks dairy cattle. Therefore, expatriates who want to drink milk can only drink milk during the lactation period of buffalo or ox for farming. This phenomenon has not only occurred in Shanghai, Hong Kong, Taiwan and other ports of commerce have had the history of dairy cattle to milk ~ (1). For farmers, the use of cattle lactation to sell milk is a low cost, profit