怎样区别美国青蛙和牛蛙蛙类新星──美国青蛙是大型食用蛙类，适宜在稻田、果园、水沟等地养殖，只要有野生蛙生长的场所，均可大规模发展，美蛙以鱼干、泥鳅、蚕蛹、猪肺、配合饲料等为主要饲料，每年５～９月份为产卵期，美国青蛙和牛蛙原产地都是美国，同是水陆两栖食... How to distinguish between the American frog and bullfrog frogs Nova ─ ─ US frogs are large edible frogs, suitable for breeding in paddy fields, orchards, ditches and other places, as long as the growth of wild frogs place, can be large-scale development, Loach, silkworm pupae, pig lung, compound feed, etc. as the main feed each year from May to September for the spawning period, the United States frog and bullfrog origin are the United States, with the same amphibious food ...