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Cost comparisons of rearing larvae of freshwater shrimp, Macrobrachium acanthurus and M. rosenbergh, to juveniles
Hagood, R.W.; Willis, S.A. (1976). Cost comparisons of rearing larvae of freshwater shrimp, Macrobrachium acanthurus and M. rosenbergh, to juveniles. Aquaculture 7(1): 59-74
In: Aquaculture. Elsevier: Amsterdam; London; New York; Oxford; Tokyo. ISSN 0044-8486, more
Peer reviewed article  

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Keywords
    Controlled conditions; Economic analysis; Freshwater aquaculture; Juveniles; Larvae; Rearing; Survival; Macrobrachium acanthurus (Wiegmann, 1836) [WoRMS]; Macrobrachium rosenbergii (de Man, 1879) [WoRMS]; Fresh water

Authors  Top 
  • Hagood, R.W.
  • Willis, S.A.

Abstract
    Costs were determined for rearing larval Macrobrachium rosenbergii (De Man) and M. acanthurus (Wiegmann). Rearing was conducted in 2 phases. First-phase rearing (first 10 days) was conducted in conical fiberglass tanks with recalculated, filtered, brackish water; 2nd-phase rearing(final 30 days) was done in aerated 1000-1 concrete tanks. To minimize water quality problems and debris accumulation in 2nd-phase rearing, larvae were transferred every 4 to 5 days to a new tank of clean water. Larval food consisted of newly hatched Artemia and either freshly ground fish or freeze-dried fish. Mean survival in five M. rosenbergii rearing trials was 43% in 40 days at a final density of 12 juveniles per liter. Mean survival of 4 M. acanthurus trials was 25% in 44 days at a final density of 3 juveniles per liter. Average total cost of labor, operation (electricity), food and water per thousand juveniles produced was $3.56 for M. rosenbergii and $13.42 for M. acanthurus. Extrapolation of results to larger (3000-1) 2nd-phase rearing tanks showed M. rosenbergii rearing cost could be reduced to $1.87/1000.

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