南通市拼北特种养殖场,在有关研究部门的指导下,试验成功种蛙、幼蛙蝌蚪冬季在塑料大棚里越冬,保持正常生长,种蛙比一般在常规饲养的种蛙提前二个月产卵,且孵化率高,到五月一日止,己孵化出蝌蚪80万只。(笔者注,在江苏省,牛蛙产卵最早 Under the guidance of relevant research departments, under the guidance of relevant research departments, successful trial of frogs and frogs tadpoles wintering in plastic greenhouses in winter to maintain normal growth. The frogs grow two months earlier than the conventional breeding frogs, Eggs, and high hatchability, as of May 1, has hatched a total of 800,000 tadpoles. (I note, in Jiangsu Province, bullfrog spawning the earliest