Economic performance characterization of intensive shrimp ( Penaeus monodon ) farming systems in Bangladesh
Economic performance characterization of intensive shrimp ( Penaeus monodon ) farming systems in Bangladesh
复制标题
孟加拉国集约化虾（斑节对虾）养殖系统的经济绩效特征
DOI：
10.1002/aff2.29
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Ali H
中科院分区：
文献类型：
--
作者：
Ali H
集约化对虾生产系统在孟加拉国相对较新，尚未得到充分描述或评估其可行性。本研究的目的是描述、评估孟加拉国集约化养虾业的经济表现并确定其面临的挑战。在2016年10月至2017年6月期间，对孟加拉国西南部库尔纳省三个地区的53名农民进行了一项结构化问卷调查。根据养殖池的数量，将调查的养殖场分为小型、中型和大型。大型农场的平均产量、运营成本、毛收入和净收入、净收入和成本效益比较高，其次是中型和小型农场。Cobb-Douglas生产函数模型用于确定影响对虾产量的因素，其中饲料管理、健康管理、池塘深度和通气被确定为显著因素。效益成本比高于1，表明集约化养虾系统对养殖户的投资效率为正。主要挑战与投入的质量、高投资、维持生物安全和疾病爆发、水质、投入供应商数量有限以及缺乏农场一级的诊断服务和技术信息有关。我们的研究结果表明，迫切需要对养虾场主、工人和技术人员进行人力资源开发。还必须改善获得优质投入、快速和负担得起的诊断和其他技术服务的机会。
Intensive shrimp (Penaeus monodon) production system is relatively new in Bangladesh, and has not yet been adequately described or its viability assessed. The aims of this study were to characterize, assess the economic performance and identify challenges for intensive shrimp farming in Bangladesh. A survey was conducted using a structured questionnaire enumerated between October 2016 to June 2017 with 53 farmers in three districts of Khulna Province, southwest Bangladesh. The surveyed farms were categorized into small, medium and large scale based on the number of culture ponds. The average production, operational costs, gross and net income, net income, and cost‐benefit ratios were higher in large farms, followed by medium and small farms. A Cobb–Douglas production function model was used to identify factors influencing shrimp yields, with feed management, health management, pond depth and aeration identified as significant factors. The benefit‐cost ratio was higher than 1, indicative of a positive investment efficiency of intensive shrimp farming system for farmers. Major challenges were associated with quality of inputs, high investment, maintenance of biosecurity and disease outbreaks, water quality, limited number of input suppliers and lack of diagnostic services and technical information at farm level. Our findings suggest that there is an urgent need for human capacity development for shrimp farm owners, workers and technicians. It is also important to improve access to quality inputs, rapid and affordable diagnostics and other technical services.