Show simple item record

dc.contributor.authorAfsharnasab, M.
dc.contributor.authorMatinfar, A.
dc.contributor.authorMohamadidost, M.
dc.contributor.authorGhvampour, A.
dc.contributor.authorSeyed Mortezaei, R.
dc.contributor.authorSbzeali, S.
dc.contributor.authorPazier, K.
dc.contributor.authorPheghieh, G.H.
dc.contributor.authorHaghnejad, M.
dc.contributor.authorGhasemi, S.
dc.coverage.spatialIranen_US
dc.coverage.spatialKurdistan Provinceen_US
dc.date.accessioned2018-02-21T08:38:17Z
dc.date.available2018-02-21T08:38:17Z
dc.date.issued2008
dc.identifier.issn1026-1354
dc.identifier.urihttp://hdl.handle.net/1834/11500
dc.description.abstractTo introduce Litopenaeus vannamei to Iran as a cultured shrimp species, a experimental study was carried out to assess the effects of different stocking densities on growth rate, mean weight, survival rate, food conversion ratio and the total harvest of L. vannamei. Mee post-larval groups (P1,12) of L. vannamei (pond A: 20 PL/m2, pond B: 30 PL/m2 and pond C: 50 PL/m2) with average size 0.9cm and initial mean weight 0.01±0.005g were used in this study. The experiments were carried out in three replications in 9 earthen ponds each half a hectare in size in Khouzestan province, south of Iran during 110 days. The result showed there was no significant correlation (P>0.05) between stocking density and survival rate in the semi intensive culture condition. Mean survival rate among farms were greatest at the lowest density, where mean survival in pond A, B, and C was 88.6%, 83.3%, 73.3%, respectively but the differences were not significant (P>0.05). The results also showed there was no significant relationship (P>0.05) between growth rate and growth days in each experiment. The mean growth rate/days for ponds A, B, and C were calculated at 0.16g/day, 0.16g/day and 0.15g/day, respectively. The food conversion ratio in the end of the study period for ponds A, B and C was 1.01, 1.17 and 1.2, respectively. Shrimp production increased with an increase in stocking density when farm production at Pond A and B indicated a significant difference (P<0.05) compared to that of the pond C. The total shrimp production for ponds A, B and C was calculated at 2803kg/ha, 3146kg/ha and 3972kg/ha, respectively. The water temperature ranged between 28±3°C to 23±3°C, with the highest in July and lowest in September. Salinity ranged between 25±2ppt to 12±3ppt, pH ranged between 8.6±0.2 to 7.50.4 and dissolved oxygen ranged between 5.8± 0.4ppm to 5.3±0.3ppm throughout the study. The study proved that L. vannamei could adapt to common conditions in Iranian shrimp culture environment and also we showed that the species production was higher than the native species already under culture.en_US
dc.language.isofaen_US
dc.relation.urihttp://isfj.areo.ir/en_US
dc.subject.otherStocking densityen_US
dc.subject.otherShrimp cultureen_US
dc.subject.otherFood conversionen_US
dc.subject.otherLitopenaeus vannameien_US
dc.titleGrowth and survival rates, mean weight, food conversion ratio and total harvest in cultured Shrimp Litopenaeus vannamei in Iranen_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issue3en_US
dc.bibliographicCitation.titleIranian Scientific Fisheries Journalen_US
dc.bibliographicCitation.volume17en_US
dc.description.statusPublisheden_US
dc.format.pagerangepp.15-22en_US
dc.subject.asfaGrowth rateen_US
dc.subject.asfaWeighten_US
dc.subject.asfaSurvivalen_US
dc.subject.asfaMarineen_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:48:27Z


Files in this item

Thumbnail
Name:
15.pdf
Size:
406.2Kb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record