论文部分内容阅读
要提高养殖效益,建议积极调整品种结构,养殖以下几类水产品: (1)套养吃鱼的品种:如鳜鱼、乌鳢(黑鱼)、加州鲈鱼、鲇鱼等,利用这些鱼类,可以清除池塘里的经济价值低的小型野杂鱼类,为放养鱼类减少了争食、争氧对象,提高养殖鱼类的产量。一般每1/15公顷(1亩)水面可套养肉食性鱼类10-30尾,在不增加投饵的情况下,可增加优质鱼类10
To improve the breeding efficiency, it is suggested to actively adjust the variety structure and breed the following types of aquatic products: (1) Varieties for raising fish: such as catfish, catfish (blackfish), California perch, catfish, etc. These fish species The removal of small wild boar with low economic value in ponds will reduce the fight for food and oxygen for stocking and raise the production of farmed fish. Generally every 1/15 hectare (1 acre) of water can raise carnivorous fish 10-30 tail, without increasing the feed, can increase the quality of fish 10