我国淡水养殖生产成本收益变动分析

本文通过对2000～2007年淡水养殖生产中各成本构成及其变化趋势的比较，探讨了我国水产养殖生产成本收益的变化趋势。结果表明：淡水养殖成本逐年上升，年收益率则表现为波动下降的趋势；我国水产养殖苗种成本、鱼药成本、饲料成本以及人工成本均呈现增长趋势，而销售成本和固定资产折旧则为下降趋势；但从各成本构成要素占总成本的比重来看，苗种费用、饲料费用和鱼药费用的比重基本稳定，人工费用比重增长明显，而销售费用、固定资产折旧费用的比重则为下降。

Comparison and analysis on aquaculture production cost and return

The freshwater aquaculture cost composition and development trend from the year 2000 to 2007 were analyzed, and the cost-benefit ratio was illustrated as well. The result indicated that the cost of fish seed, feed, drug and labors were increasing steadily, while the cost of the marketing and the depreciation of fixed assets were declining. The proportions of fish seed, feed and drugs to the total cost kept constantly, while the cost of labors increased significantly, and the percentage of marketing and the depreciation of fixed assets were declining.