分别采用液体迷宫和固体诱饵实验方法研究了DM(二甲亚砜,下同)和甜菜碱对麦穗鱼的诱食活性,并对麦穗鱼的摄食行为进行了观察。结果表明,0.01％的DM对麦穗鱼有诱食活性,在饵料中添加0.5％的甜菜碱时鱼的咬饵次数最高。麦穗鱼摄食行为的引发和继续是在视觉、嗅觉、味觉的共同作用下完成的,此外,麦穗鱼对饵料的形状和颜色也有较强的选择性。 Liquid maze and solid bait experiment were used to study the attractant activity of DM (dimethylsulfoxide, the same below) and betaine on wheat spike fish, and the feeding behavior of spike fish was observed. The results showed that 0.01% DM had appetizing activity on wheat spikes, and the fish had the highest number of bites when 0.5% betaine was added to the diet. The initiation and continuation of feeding behavior of wheat spike fish are accomplished by the combination of vision, smell and taste. In addition, the spike fish also has a strong selectivity on the shape and color of the feed.