掌握鉴别鱼的雌雄,按比例搭配雌雄,是搞好鱼配种、培育鱼苗的重要一环。介绍两种准确率较高的鉴别方法: 雄鱼鱼体较狭长,头部短而较高,吻较尖,尾柄较窄,腹鳍和臀鳍硬而粗糙,腹鳍大,腹部比背部稍狭小,腹部坚硬。雌鱼鱼体扁平,腹部膨大,腹鳍和臀鳍之间的肉薄,软而光滑。在生殖期, Grasp the distinction between male and female fish, in proportion to male and female, is to do a good job fish breeding, fishes breeding an important part. Two kinds of identification methods with higher accuracy are introduced: the male fish are relatively long and narrow, the heads are short and high, the tips are relatively sharp, the caudal peduncle is narrower, the pelvic fins and anal fin are hard and rough, the pelvic fins are large, the abdomen is slightly narrower than the back, Abdomen hard. Female fish flat, abdominal enlargement, pelvic and anal fin thin, soft and smooth. In the reproductive period,