Evaluation of Autotrophic and Heterotrophic Microcosm-based Systems on the Production Response of Litopenaeus vannamei Intensively Nursed without Artemia and with Zero Water Exchange

Simple item page
dc.contributor.authorBecerra-Dórame, M.J.
dc.contributor.authorMartínez-Córdova, L.R.
dc.contributor.authorMartínez-Porchas, M.
dc.contributor.authorLopez-Elías, J.A.
dc.date.accessioned2014-06-09T20:38:36Z
dc.date.available2014-06-09T20:38:36Z
dc.date.issued2011
dc.description.abstractAn experiment was conducted for 28 days to evaluate the productive response of the Pacific white shrimp (Litopenaeus vannamei) postlarvae, intensively nursed in autotrophic or heterotrophic microcosm-based treatments, without Artemia and zero water exchange. The autotrophic system was based on the promotion of microalgae as the main primary producers. The heterotrophic system was based on the promotion of bacteria as the main primary producers. The control was fed a conventional diet. Bioflocs and biofilms were used to promote biota in the autotrophic and heterotrophic systems. There were no differences in temperature, salinity, or DO among treatments. The chlorophyll a concentration and microalgae density were much greater in the control and autotrophic system than in the heterotrophic. The concentration of heterotrophic bacteria was significantly higher in the heterotrophic than in the autotrophic system and control. Individual weight gain was higher in the control (81±2 mg) and heterotrophic (77±8 mg) treatments than in the autotrophic (58±10 mg) but survival was better in the autotrophic (86%) than control (77%) and heterotrophic (76%) treatments. Final biomass was statistically similar in all treatments, as well as the feed conversion ratio which ranged from 0.65 (heterotrophic) to 0.69 (autotrophic). The increased natural productivity caused a positive productive response in the shrimp postlarvae. Such strategies can be an adequate alternative when Artemia is unavailable.
dc.format.extent7 pages
dc.identifier.citationM.J. Becerra-Dórame, L.R. Martínez-Córdova, M. Martínez-Porchas, J.A. Lopez-Elías (2011). Evaluation of Autotrophic and Heterotrophic Microcosm-based Systems on the Production Response of Litopenaeus vannamei Intensively Nursed without Artemia and with Zero Water Exchange. The Israeli Journal of Aquaculture - Bamidgeh, 63, 7 pp.
dc.identifier.issn0792-156X
dc.identifier.otherIIC:63.2011.620
dc.identifier.urihttp://hdl.handle.net/10524/36290
dc.publisherIsraeli Journal of Aquaculture - BAMIGDEH
dc.relation.ispartofseriesThe Israeli Journal of Aquaculture - Bamidgeh
dc.subjectshrimp nursery
dc.subjectautotrophic system
dc.subjectheterotrophic system
dc.subjectzero water exchange
dc.subject.lcshFish culture--Israel--Periodicals.
dc.subject.lcshFish culture--Periodicals.
dc.subject.lcshAquaculture--Israel--Periodicals.
dc.subject.lcshAquaculture--Periodicals.
dc.titleEvaluation of Autotrophic and Heterotrophic Microcosm-based Systems on the Production Response of Litopenaeus vannamei Intensively Nursed without Artemia and with Zero Water Exchange

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
63.620.Martinez, 7 pages.pdf
Size:
266.41 KB
Format:
Adobe Portable Document Format
Download

Collections

IJA Volume 63, 2011