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牛蛙人工养殖已在我国普遍推广,为提高种蛙产卵数量和质量,以保证优良种苗来源,在牛蛙人工养殖中,种蛙的培育是一个重要环
Bullfrog artificial breeding has been widely promoted in our country, in order to improve the number and quality of spawning eggs in order to ensure the source of good seedlings, bullfrog artificial breeding, breeding of frog is an important ring