目前,如要提高养殖效益,建议积极调整品种结构,多养以下几类水产品。套养吃鱼的品种在同一口池塘中,适当套养一些肉食性鱼类,如鳜、乌鳢(黑鱼)、加州鲈、鲇等。利用这些鱼类,既可以清除池塘里的经济价值低的小型野杂鱼类,又可为放养鱼类减少了争食、争氧对象,提高养殖鱼 At present, if we are to raise the breeding efficiency, we suggest that we actively adjust the variety structure and raise the following types of aquatic products. Nesting and eating fish species in the same pond, proper carcass feeding some carnivorous fish, such as jackals, jackals (blackfish), California perch, jackal and so on. The use of these fish, both to clear the pond of low economic value of small wild boar, but also for the stocking of fish to reduce competition, oxygen targets, raising farmed fish