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Economic study of the production of big- size (1.5< kg) Rainbow trout (Oncorhynchus mykiss) in floating cages in the southern Caspian Sea region
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Sayyed Mohamad Vahid Farabi *   , Maryam Ghiasi |
| Agricultural Research, Education and Extension Organization (AREEO) |
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Abstract: (180 Views) |
| The development of aquaculture is inevitable with increasing population and to ensure food security. On the other hand, due to the limitation of fresh water, the development of aquaculture is expanding in the sea. In the last decade, the rearing of Rainbow trout (Oncorhynchus mykiss) in Caspian Sea cages was done to form a production chain with pond farms to produce big-sized fish for export. The purpose of this research was the economic evaluation of the production of big-sized (1.5< kg) Rainbow trout in sea cages using the Cost-Benefit Analysis (CBA) method. This research was done in 4 sea farms in the south of the Caspian Sea. Fish with an initial weight of 500 grams were introduced into the floating cage (volume of 2500 cubic meters). The fish reached a weight of 1517±71 grams to 1799±178 grams in 90 days of the rearing period. All production costs (variable and fixed costs) and profit from fish sales were calculated. For the economic evaluation, each marine farm was considered with four floating cages and the production rate of 5, 10, 15, 20, and 30 tons of fish for each cage. The results showed that the minimum reasonable profit margin for a farm with a production of 80 and 120 tons of fish and taking into account a loan with a bank interest of 23% and a 10-year equipment depreciation period has 30% and 70% net profit, respectively. On the other hand, raising rainbow trout in floating cages with a volume of 2500 cubic meters and producing less than 20 tons (less than 8 kg per cubic meter) for each cage is not recommended in marine farms in the southern Caspian Sea region. |
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| Keywords: Aquaculture, Caspian Sea, Oncorhynchus mykiss, big-size, Economic |
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Full-Text [PDF 617 kb]
(45 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2024/03/25 | Accepted: 2024/03/25 | Published: 2024/03/29
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