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饲料费一般约占养鱼总开支的70%,节省饲料是提高养鱼经济效益的有效措施。现简单介绍省料的五种方法。一、以草代料。每亩水面种40%面积的优质牧草,种一次草可刈割几茬。牧草一般可亩产5吨,平均每25公斤青料长1公斤鱼,而且鱼食青料不易得病。二、诱蝇育蛆。夏季在鱼塘水面安装
Feed costs generally account for about 70% of total fish consumption, saving feed is an effective measure to improve the economic benefits of fish farming. Now briefly introduce five methods of saving material. First, to grass substitutes. 40% of acre water surface area of high quality forage, a species of grass can cut a few stubble. Forage generally yields 5 tons per mu, an average of 1 kg of fish per 25 kg of green material, and fish meal green material is not easy to get sick. Second, fly breeding maggots. Summer pond surface installation