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Assessment of the impact of density on the growth of fry (Oncorhynchus mikiss) at the salmon farming station in the Middle Atlas Morocco
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Assessment of the impact of density on the growth of fry (Oncorhynchus mikiss) at the salmon farming station in the Middle Atlas Morocco
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Assessment of the impact of density on the growth of fry (Oncorhynchus mikiss) at the salmon farming station in the Middle Atlas Morocco
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Journal Article
Assessment of the impact of density on the growth of fry (Oncorhynchus mikiss) at the salmon farming station in the Middle Atlas Morocco
2022
Overview
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.
