Economic feasibility of intensification of Macrobrachium rosenbergii hatchery

Abstract

Inadequate seed supply remains a bottleneck for the expansion of the Macrobrachium rosenbergii production industry. Nevertheless, the limitation is not technical, and thus, we presumed that fragile production chains and economic feasibility might be the major issues. Therefore, we investigated the intensification as a way to improve the system's profitability and resilience. We have reported relevant costs and revenues of hypothetical hatcheries stocking 50, 100, and 140 larvae per L in clear water recirculating systems. A Monte Carlo simulation assessed the risks associated with development and management. Data showed that all hatcheries are profitable. Nevertheless, 100 and 140 larvae per L reached better economic results than 50 larvae per L. With less than 40% of the selling price, high‐density hatcheries covered their costs and became profitable. The Monte Carlo simulation demonstrated that high‐density hatcheries are more resilient to production and marketing oscillations. However, the use of 140 larvae per L requires greater investment and is more susceptible to production risks and instabilities. Therefore, 100 larvae per L is the most appropriate stocking density for M. rosenbergii hatchery in clear water recirculating systems. Additionally, the scaled production, the adoption of realistic selling price, diversification of products and markets may strengthen the production chain and hatcheries resilience.

Prawn ( Macrobrachium rosenbergii )–plant ( Hydrilla verticillata ) co‐culture system improves water quality, prawn production and economic benefit through stocking density and feeding regime manage

“…We then compared partial budgets for gasius farming (Pham et al, 2016). In this study, we performed MCA analysis according to the method of David et al (2018) using the software @Risk Simulator (Beijing NDTimes Information Company). We obtained two higher profitable treatments via the above preliminary partial budget analysis and then evaluated the production risks (sensitivity analysis) based on the stochastic input variables that had an important impact on the IRR, NPV and PP, such as selling price per kg prawns, feed price and annual production cycles.…”

“…We obtained two higher profitable treatments via the above preliminary partial budget analysis and then evaluated the production risks (sensitivity analysis) based on the stochastic input variables that had an important impact on the IRR, NPV and PP, such as selling price per kg prawns, feed price and annual production cycles. The 1,000 iterations were in accordance with the report of David et al (2018), and the simulation generated probability distributions for the IRR, NPV and PP. For the selling price per kg prawns and the feed price, it was considered three fixed variations ( −5%, 0%, and 5%) of the base scenario.…”

“…The discount rate was fixed at 7% per year, and the minimum attractive rate of return (MARR) fixed at 6.8% per year.Monte Carlo Analysis (MCA) was commonly used to evaluate the production risks of treatments based on stochastic variations of the most important items (electric cost, water cost, labour cost, feed cost, annual production, sell price per kg prawns and larva cost). Currently, MCA have been used within the context of risk management of aquaculture, such as examples exists such as MCA applications to economic feasibility of intensification of M. rosenbergii hatchery(David, Fonseca, Bueno, & Valenti, 2018) and recirculating aquaculture systems in pan-…”

Effects of C‐N ratio on growth, survival and proximate composition of Macrobrachium rosenbergii post larvae reared under a corn starch based zero‐exchange brackish water biofloc system

“…Although M. rosenbergii naturally inhabits in freshwater, ovigerous prawn migrates towards brackish water for spawning. Thus, hatcheries routinely use salinities of 10-12‰ in for commercial PL production (David et al, 2016(David et al, , 2018Hosain, Amin, Kamarudin et al, 2021;New, 2010).…”

Identification of sex linked molecular markers in Indonesian giant freshwater prawn Macrobrachium rosenbergii

“…Due to the excellences of giant freshwater prawn caused vivid giant freshwater prawn culture in some countries in Southeast Asia, South Asia, and North Australia. Nowadays, giant freshwater prawn culture is massively developed in various countries, such as in United States of America and China (Akter et al, 2014;Zafar et al, 2015;David et al, 2018). In 2009-2012, the production of giant freshwater prawn has contributed over 57.1% of the total production of freshwater prawn Macrobrachium sp.…”