Assessment of the impact of density on the growth of fry (Oncorhynchus mikiss) at the salmon farming station in the Middle Atlas Morocco

Abstract The objective of this study is to determine the impact of the load of the nursery ponds (density) on the growth of the rainbow trout fry (Oncorhynchus mikiss), this study was conducted at the fish farming station of Ras Al Ma Ifrane, Morocco. The results obtained for the densities D1 (7.48...

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Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 1090; no. 1; pp. 12032 - 12037
Main Authors Laiboud, CH, Hachi, T, Essabiri, H, Boumalkha, O, Elhammioui, Y, El Moujtahid, A, Abba, E H
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.10.2022
Subjects
Aquaculture
Density
Fish farms
Nurseries
nursery
Oncorhynchus
Ponds
Salmon
Trout
Weight
zootechnical parameters
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Summary:Abstract The objective of this study is to determine the impact of the load of the nursery ponds (density) on the growth of the rainbow trout fry (Oncorhynchus mikiss), this study was conducted at the fish farming station of Ras Al Ma Ifrane, Morocco. The results obtained for the densities D1 (7.48 Kg / m3), D2 (9.31 Kg / m3) and D3 (11.21 Kg / m3) during this nursery phase which lasted 30 days, the results indicate that the zootechnical parameters evaluated vary according to the density of the fry in different nursery ponds. In average, the final weight of the fry for D1 is 12.73g, for D2, the final average weight is 11.39g against only 9.56g for ponds with density D3. As such, the growth in size of the fry evolves in the same way as the growth in weight.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/1090/1/012032