南美白对虾两种养殖模式下的经济效益比较分析

论文比较分析了南美白对虾高位池精养和土池生态养殖两种养殖模式的经济效益。结果表明：高位池精养模式的产量、产值、净利润在绝对值上分别比土池微生态养殖模式高306．44斤／亩、8860．29元／亩、2553．27元／亩，前者经济效益较高；两种养殖模式成本利润率分别为31．39％和26．02％，高位池精养模式提高经济效益主要依靠的是高成本投入，需提高成本利用效率。论文还对影响南美白对虾经济效益的原因进行分析，其中基础设施、总成本和人力成本、产品规格、养殖周期、技术支持和管理水平是造成经济效益差异的主要原因，从而进一步提出提高南美白对虾养殖经济效益的措施。

Economics analysis of two different culture models of Penaeus vannamei

The analysis of economic in tide pond and ecological earthen pond of Penaeus vannamel have been carried out in Guangdong and Guangxi. Results showed that： tide pond model has higher economic benefits in yield, price, cost, output, and net profit. The yield, output and net profit of tide pond showed 153.22kg/mu, 8860.29yuan/mu, 2553.27 yuan/mu higher than that of earthen ecological pond model. However the cost-profit ratio were 31.39% and 26.02% in tide pond model. It indicated that tide pond model had greater economic benefit mainly depending on the higher input. It is suggested that efficiency of input should be improved accordingly. It also analyzed the factors that influence economic benefits： Infrastructure, the labour and total cost, the product specifications, breeding cycle, technical support and management level have significant impact on the differences in economic benefit. Based on the results, this paper further proposed the measures to improve the economic benefits of Penaeus vannamei aquaculture.