Improving production and diet assimilation in fish-prawn integrated aquaculture, using iliophagus species

Franchini, Ariel C.; Costa, Gelcirene A.; Pereira, Stefany A.; Valenti, Wagner Cotroni; Moraes‐Valenti, Patricia

doi:10.1016/j.aquaculture.2020.735048

Cited by 24 publications

(23 citation statements)

References 22 publications

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“…Similarly, curimbatá did not affect the prawn's performance. All species developed well in stagnant earthen ponds using nutrient-rich water, corroborating previous results [31,32,36]. The total annual high-value biomass produced increased from 9 t ha −1 in lambari monoculture to 16 t ha −1 in integrated culture, using the same space, amount of freshwater, feed, and other resources indicating a tremendous increase in system efficiency.…”

Section: Discussionsupporting

confidence: 88%

“…However, total species biomass increased 35%, and FCR decreased 30%, showing that the yield of curimbatá compensates for the decrease in the prawn yield and the recovery of lost nutrients and energy increased. The higher biomass of lambari in the present experiment than the biomass of tambaqui in the study of Franchini et al [31] was enough to provide the necessary wastes to support the density of Amazon river prawn and curimbatá with no adverse effect on the prawn growth.…”

Section: Discussioncontrasting

confidence: 42%

“…Thus, at 2 months, juvenile prawn should be stocked in integrated culture with yellow tail lambari as a strategy to combine and coincide both species' cultivation periods. The curimbatá has a slow growth rate, but it should be traded as juveniles of different sizes to grow-out farms, as bait-fish for the sportive fisheries market, or to the environmental mitigation market [12,31]. Juveniles of different sizes produced in hatcheries are released annually into dam-impacted hydrological basins in Brazil, which support a massive artisanal fishery [12].…”

Section: Discussionmentioning

confidence: 99%

“…The number and proportion of the unfed components of an integrated aquaculture system depends on the pelagic species' mass density because it provides residues and wastes. A co-stocking experiment that lasted 2 months showed that the yield of the Amazon river prawn stoked at 11 prawns m −2 together to 4 g tambaqui (the pelagic fed species), stocked at 1.4 m −2 , decreased by 25% when 5 curimbatás m −2 were added [31]. However, total species biomass increased 35%, and FCR decreased 30%, showing that the yield of curimbatá compensates for the decrease in the prawn yield and the recovery of lost nutrients and energy increased.…”

Section: Discussionmentioning

confidence: 99%

“…The feeding for all treatments began after the stocking of the yellow tail lambari (Figure 1). Before that, the Amazon river prawn and curimbatá fed on natural biota [30][31][32]. A commercial diet recommended for omnivorous fish juveniles was provided.…”

Section: Feeding Managementmentioning

confidence: 99%

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Improving the Efficiency of Lambari Production and Diet Assimilation Using Integrated Aquaculture with Benthic Species

et al. 2021

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A single farmed fish species assimilates about 20% of the nutrients in the supplied diet. This study evaluated if the culture of complementary ecological-function species can recover nutrients dispersed into water and transform them into high-valued biomass. A completely randomized experiment was designed with three treatments and four replications of each production system: monoculture of lambari (Astyanax lacustris); integrated aquaculture of lambari and Amazon river prawn (Macrobrachium amazonicum); and integrated aquaculture of lambari, Amazon river prawn, and curimbatá (Prochilodus lineatus). Fingerlings of lambari (0.8 ± 0.8 g) were stocked in twelve earthen-ponds (0.015 ha) at the density of 50 fish m−2. Eight ponds were stocked with juveniles of Amazon river prawn (1.1 ± 0.2 g) at the density of 25 prawn m−2. Four of these eight ponds were stocked with curimbatá fingerlings (0.2 ± 0.1 g) at a density of 13 fish m−2. Only lambari was fed twice a day with an extruded commercial diet. The experiment lasted 60 days when lambari attained commercial size. The inclusion of prawn increased the total species yield from 1.8 to 2.4 t ha−1 cycle−1 and reduced the feed conversion ratio (FCR) from 2.5 to 1.8. The inclusion of prawn and curimbatá increased the total yield to 3.2 t ha−1 cycle−1 and reduced the FCR to 1.4. Therefore, the integrated culture of lambari, prawn, and curimbatá improves the use of space, water, feed, and benthic species to recover the large quantity of nutrients accumulated in the bottom of lambari pond production, converting them into high-nutritional and monetary-valued biomass.

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Section: Discussionsupporting

confidence: 88%

Section: Discussioncontrasting

confidence: 42%