Abstract The aquaculture sector in Malawi has not shown significant growth in terms of production and productivity. This study applied the translog stochastic frontier to determine the technical efficiency in tilapia production in Malawi. Multi-stage sampling procedure was used to select 211 tilapia farms for the study. The determinants of tilapia output in Malawi are seed, fertilizer input and farm size. The mean technical efficiency estimate was 66% indicating that the tilapia producers have a yield gap of 34%. Sex of producer, age, household size, access to extension, training and access to credit are major factors influencing the efficiency level of tilapia producers. On average, tilapia production is carried out under the decreasing returns to scale. Tilapia producers grossly under-utilized feed, fingerlings, fertilizer, and farm size and over-utilized Labor. Government and other stakeholders should ensure widening access to extension, training fish farmers, empowering women tilapia producers, widening access to credit and financing sources to enhance tilapia production in Malawi.

中文翻译：

---

马拉维中部和南部罗非鱼生产的资源利用效率

摘要 马拉维的水产养殖部门在产量和生产力方面没有显着增长。本研究应用 translog 随机前沿来确定马拉维罗非鱼生产的技术效率。多阶段抽样程序用于选择 211 个罗非鱼养殖场进行研究。马拉维罗非鱼产量的决定因素是种子、肥料投入和农场规模。平均技术效率估计值为 66%，表明罗非鱼生产者的产量差距为 34%。生产者性别、年龄、家庭规模、获得推广、培训和获得信贷是影响罗非鱼生产者效率水平的主要因素。平均而言，罗非鱼的生产是在规模报酬递减的情况下进行的。罗非鱼生产者的饲料、鱼种、肥料、和农场规模和过度使用的劳动力。政府和其他利益相关者应确保扩大推广机会，培训养鱼者，赋予女性罗非鱼生产者权力，扩大获得信贷和融资来源的机会，以提高马拉维的罗非鱼生产。