Hiệu quả kỹ thuật của mô hình nuôi tôm thẻ chân trắng Litopenaeus vannamei (Boone, 1931) qui mô nông hộ ở Đồng bằng sông Cửu Long

Abstract

Technical efficiency of the white leg shrimp farming at household scale in the Mekong Delta in this study was analyzed from the Cobb-Douglas stochastic production frontier function. The data was collected from two hundred and four white leg shrimp farms in Soc Trang và Ben Tre provinces. The results showed that the average technical efficiency level was 69.0%, of which 31.4% of households reached technical efficiency over 80%. The average yield loss due to technical inefficiency was 2.2 tonnes/ha/crop. The main reason was unreasonable usage of input of famers. There were 94.6% of the inefficiencies caused by the inputs that farmers could control such as stocking density, labor days and cost of veterinary. Educational level, production financial capital and production cycle were found to have effects on the technical efficiency.