美蛙与牛蛙优势互补杂交法近一时期，不少养蛙者和欲养蛙者均有疑虑，即到底是古巴牛蛙好，还是美国青蛙好？湖北当阳实用技术研究所将两种蛙进行了较长时期的对比观测，现将有关性状介绍如下：总体上说，美国青蛙与牛蛙均为美国的同一品种。引入古巴，进行多年热带驯化的... US frogs and bullfrogs complement each other for nearly a period of hybrid law, many frogs and frogs have raised doubts that the Cuban bullfrog is good, or good American frog? Hubei Dangyang Institute of Practical Technology, the two species of frogs were compared over a longer period of observation, the traits are introduced below: Overall, the United States, the United States frog and bullfrog are the same species. Introduced to Cuba for many years of tropical domestication ...