The live feed demands of the global aquaculture industry depend highly on Artemia production in the Mekong Delta, Vietnam. However, the production and profitability of Artemia farming in the Mekong Delta have been affected by environmental and technical challenges. This study presents a cost and return analysis on Artemia franciscana farmed in the Mekong Delta, Vietnam by considering the interaction effects of farming scale and production model for improving Artemia production and profitability. The data were obtained from 94 farms, and the key factors affecting profitability were identified according to economic principles and multivariate statistical analysis. The results highlighted that the profitabilities of Artemia farms were significantly affected by farming scale, production model, and the interaction between these factors (p < .001). Farms applying a “cyst and biomass” model achieved more profit compared to those applying a “cyst” model. The greatest profitability was recorded for a small‐scale “cyst and biomass” model. In order to improve profitability, besides applying the “cyst and biomass” model and maintaining optimal stocking densities, a moderate increment of organic fertilizer and chemical inputs are essential to assure better nutrition and water environment for optimal growth of Artemia biomass and their reproductive activities. For further sustainable development, however, good collaboration between scientists and feed processing companies is suggested to commercially produce specific formulated feeds to satisfy Artemia nutritional demands and ensure environmental protection.

中文翻译：

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越南湄公河三角洲沿海盐场中卤虾对虾商业化养殖的获利能力提高：生物经济分析

全球水产养殖业对活饲料的需求在很大程度上取决于越南湄公河三角洲的卤虫产量。但是，湄公河三角洲卤虫养殖的生产和盈利能力受到环境和技术挑战的影响。该研究通过考虑养殖规模和生产模型对提高卤虫生产和盈利能力的相互作用，对越南湄公河三角洲的卤虫进行了成本和收益分析。数据来自94个农场，并根据经济原理和多元统计分析确定了影响盈利能力的关键因素。结果强调，卤虫的盈利能力养殖场受到养殖规模，生产模式以及这些因素之间的相互作用的显着影响（p  <.001）。与采用“囊肿”模型的农场相比，采用“囊肿和生物量”模型的农场获得了更多的利润。小型“囊肿和生物量”模型的利润最高。为了提高盈利能力，除了应用“囊肿和生物量”模型并保持最佳的放养密度外，适度增加有机肥料和化学投入对于确保更好的营养和水环境以实现卤虫的最佳生长至关重要生物量及其生殖活动。但是，为了进一步的可持续发展，建议科学家和饲料加工公司之间进行良好的合作，以商业方式生产特定配方的饲料，以满足卤虫的营养需求并确保环境保护。