The crab seed is the key to the development of crab farming industry.A ten-year follow-up survey has been conducted on crab farmers in Chongming,the main crab farming area in Shanghai,and a total of 151 observations has been obtained to analyze the willingness of crab farmers to adopt the improved varieties.This paper intends to provide suggestions for promoting the application of improved aquatic varieties and explain the difference in productivity and profitability of crab farmers who adopted improved crab seed and those who did not adopt it.A logit regression has been used to identify the reasons behind the low adoption rate.The empirical results indicate that technical support,production subsidy and better market price are the significantly positive driving factors on the adoption.This study suggests that the application of new aquaculture technology could be promoted from attracting crab farmers to join the project with technical support,providing production subsidy and enhancing the crab quality for better price.
关键词
中华绒螯蟹/养殖规模/体系示范/生产补贴/良种采纳
Key words
Chinese Mitten Crab/farming scale/demonstration site/production subsidies/improved-seed adoption
维普
万方数据