论文部分内容阅读
降低鱼类生产成本的有效方法许多养鱼工作者认为购买自动投饵机或自动鱼筛以节省劳动力是降低鱼类生产成本的主要方法，其实不然。实践证明，降低养鱼成本的主要因素是饲料，提高鱼的饲料转换率才是良策。鱼的饲料转换率低主要有以下几个原因：（１）过高估计池鱼的生物量...
Effective Methods to Reduce Fish Production Costs Many fish farmers consider the main method of reducing the cost of fish production by purchasing automatic bait machines or by using automatic fish screens to save labor is not. Practice has proved that the main factor to reduce the cost of fish farming is to feed, improve fish feed conversion rate is a good policy. Fish feed conversion rate is low for the following several reasons: (1) overestimated the fish pond biomass ...