1995年4月人工繁殖大口鲶(Silurusmeridionalis)获得鱼苗,将稚鱼分成4组,各200尾,分别为饥饿、1%、3%及最大量(百分比为每日投饵量占实验鱼体重的比例)。通过每5天计数和捕捞惊吓后呕吐出稚鱼来统计其吞食死亡数。水温14.5～29℃。摄食量的差异要影响稚鱼的互相吞食。在饥饿组 In April 1995, Silurus meridionalis was used to obtain the fry. The juveniles were divided into 4 groups of 200 fish each, which were starved, 1%, 3% and the maximum (the percentage of the daily fish fed accounted for the weight of the experimental fish proportion). The number of swallowing deaths was calculated by vomiting each 5 days after harvesting and harvesting. Water temperature 14.5 ~ 29 ℃. Differences in food intake affect the ability of juveniles to swallow each other. In the hunger group