研究不同组合饵料对河蟹幼体的影响 ,通过调整搭配 4种组合 ,并进行生产实验 ,结果发现 ,在育苗过程中 ,活饵用量多 ,则产量大 ,但经过综合分析 ,效益不是最高 The effects of different combinations of bait on crayfish larvae were studied. Through adjusting and matching four combinations and carrying out production experiments, it was found that in the breeding process, the amount of live bait was large and the yield was large. However, after comprehensive analysis, the benefit was not the highest