随着渔业生产的发展,北方地区水产养殖生产与需求的矛盾日益突出,这就要求我们必须因地制宜采取行之有效的措施,迎接挑战。近年来,我们积极采取调整水产养殖结构,引进优良品种等措施,养殖效益明显提高。从1997年开始,引进革胡子鲶养殖,通过几年的饲养总结,形成了一套完整的养殖方法,利用温室育种,露天饲养成鱼, With the development of fishery production, the conflict between aquaculture production and demand in northern China has become increasingly prominent. This requires that we must take effective measures to meet the challenges according to local conditions. In recent years, we have taken active measures to adjust the structure of aquaculture and bring in fine varieties. The benefits of breeding have been remarkably improved. From 1997 onwards, the introduction of leather catfish culture, through several years of feeding summary, formed a complete set of breeding methods, the use of greenhouse breeding, open-air feeding into fish,