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Economic feasibility analysis of the monoculture of mudcrab (Scylla serrata) Forsskal
Agbayani, R.F.; Baliao, D.D.; Samonte, G.P.B.; Tumaliuan, R.E.; Caturao, R.D. (1990). Economic feasibility analysis of the monoculture of mudcrab (Scylla serrata) Forsskal. Aquaculture 91(3-4): 223-231. hdl.handle.net/10.1016/0044-8486(90)90190-X
In: Aquaculture. Elsevier: Amsterdam; London; New York; Oxford; Tokyo. ISSN 0044-8486, more
Peer reviewed article  

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Keywords
    Crab culture; Economic feasibility; Monoculture; Population density; Scylla serrata (Forskål, 1775) [WoRMS]; Brackish water

Authors  Top 
  • Agbayani, R.F.
  • Baliao, D.D.
  • Samonte, G.P.B.
  • Tumaliuan, R.E.
  • Caturao, R.D.

Abstract
    Mudcrabs, Scylla serrata Forsskal, were monocultured at different stocking densities: 5000, 10 000, 15 000 and 20 000/ha for 90 days. Highest mean weight, survival and relative growth increment (P<0.05) were obtained from a stocking density of 5000/ha. Best feed conversion ratio of 1.72 and corresponding gross production of 1019 kg/ha per crop were attained at the same stocking density. The economic indicators, i.e., return on investment and return on equity, were also highest at 5000/ha stocking density and the payback period was shortest. Partial budgeting showed that no incremental benefit accrued from stocking beyond 5000/ha. Sensitivity analysis showed that even if the value of mudcrab were to decrease by 28%, mudcrab monoculture would still be economically viable.

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