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Bioeconomic analysis of the production of marine shrimp in greenhouses using the biofloc technology system
Aquaculture International ( IF 2.2 ) Pub Date : 2021-02-06 , DOI: 10.1007/s10499-021-00653-1
Marcos Souza de Almeida , Juliana Rosa Carrijo-Mauad , Régio Marcio Toesca Gimenes , Carlos Augusto Prata Gaona , Plínio Schmidt Furtado , Luís Henrique Poersch , Wilson Wasielesky , Geraldo Kipper Fóes

This study analyzes the investment in Penaeus (Litopenaeus) vannamei shrimp production in greenhouses using the biofloc technology system (BFT). Considering bioeconomic variables, a sensitivity analysis was performed with data collected over the course of 10 years to evaluate program efficiency. The parameters considered include a stocking density of 400 shrimp/m2, which reached a productivity rate of 3.84 kg/m2 (69,120 kg/year—three cycles), a final mean weight of 12 g, and a feed conversion rate of 1.3. The results obtained had a net present value (NPV) of US$ 904,947.21, net future value (NFV) of US$ 2,401,094.35, equivalent annual value (EAV) of US$ 148,861.38, payback (PB) of 2 years and 4 months, discounted payback period (DPP) of 2 years and 10 months, profitability index (PI) of 2.59, internal rate of return (IRR) of 41.23%, and a modified internal rate of return (MIRR) of 21.25%. However, shrimp with a final mean weight of 15 g resulted in an NPV of US$ 2,522,150.62, NFV of US$ 6,692,016.44, EAV of US$ 414,886.98, a PB of 1 year and 2 months, DPP of 1 year and 2 months, PI of 5.43, IRR of 89.13%, and an MIRR of 30.57%. The Monte Carlo simulation (MCS) concluded that the probability of NPV being negative is 0. The analysis confirms that P. vannamei production using the BFT system is a financially sustainable activity.



中文翻译:

利用生物絮凝技术系统对温室大棚虾的生产进行生物经济分析

这项研究使用生物絮凝技术系统(BFT)分析了大棚对虾(南美对虾对虾生产的投资。考虑到生物经济变量,对过去10年中收集的数据进行了敏感性分析,以评估程序的效率。所考虑的参数包括400虾/ m 2的放养密度,达到3.84 kg / m 2的生产率(69,120公斤/年-三个周期),最终平均重量为12克,饲料转化率为1.3。获得的结果的净现值(NPV)为904,947.21美元,净未来值(NFV)为2,401,094.35美元,等值年价值(EAV)为148,861.38美元,投资回收期(PB)为2年零4个月,折现后投资回收期(DPP)为2年10个月,盈利指数(PI)为2.59,内部收益率(IRR)为41.23%,修正的内部收益率(MIRR)为21.25%。但是,虾的最终平均重量为15克,其净现值(NPV)为2,522,150.62美元,NFV为6,692,016.44美元,EAV为414,886.98美元,PB为1年2个月,DPP为1年2个月,PI 5.43,IRR为89.13%,MIRR为30.57%。蒙特卡洛模拟(MCS)得出的结论是,NPV为负的概率为0。使用BFT系统生产南美白对虾是一项财务可持续的活动。

更新日期:2021-02-07
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