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Review Article: Role of Dietary Fatty Acids in Fish Broodstock Nutrition and Their Effects on Egg and Larval Quality
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Ali Reza Radkhah   , Soheil Eagderi * , Esmaeil Sadeghinejad Masouleh , Sedigheh Atash Afrazah |
| Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran & Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran |
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Abstract: (6 Views) |
| Broodstock nutrition plays a fundamental role in reproductive performance and the production of high-quality eggs and larvae in aquaculture. This review evaluates the effects of dietary fatty acids in broodstock nutrition on egg quality, larval development, and survival in major cultured fish species, including salmonids, cyprinids, sea bass, sea bream, flatfish, and sturgeon. Relevant studies published between 2010 and 2022 were comprehensively reviewed to assess the relationship between broodstock dietary lipid composition and reproductive outcomes. The findings indicate that the balance and ratio of essential fatty acids, particularly eicosapentaenoic acid (EPA), arachidonic acid (ARA), and docosahexaenoic acid (DHA), are more critical than their absolute dietary levels. The dietary n−3/n−6 fatty acid ratio directly affects egg biochemical composition, embryonic development, larval quality, and survival. Evidence from the reviewed studies further demonstrates that combined lipid sources containing both fish oil and vegetable oil are generally more effective in improving reproductive performance and larval growth than single-source lipid diets. In addition, plant-based ingredients rich in essential fatty acids may serve as sustainable alternatives to conventional fish oil in broodstock feeds. Overall, optimizing fatty acid composition in broodstock diets can significantly enhance egg quality, larval viability, and the sustainability of aquaculture production systems. |
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| Keywords: Broodstock nutrition, Fatty acids, Egg quality, Larval development, Aquaculture, Fish reproduction |
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Full-Text [PDF 665 kb]
(3 Downloads)
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Type of Study: Applicable |
Subject:
Special
Received: 2026/02/1 | Accepted: 2026/03/30 | Published: 2026/03/30
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