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The suitability of soybean/corn lecithin and poultry fat as partial replacements for menhaden oil in feeds for post-juvenile rainbow trout (initial weight 46.0 g) was investigated. For 16 weeks, fish were fed experimental diets in which either 10% menhaden oil (FO), 10% poultry fat (PF), 10% lecithin (soybean/corn, L10), or 15% lecithin (soybean/corn, L15), plus 5% supplemental menhaden oil was added...
The recent trend for rainbow trout feeds to be higher than 15% lipid may improve feed conversion ratios (FCRs) and increase the lipid concentration of the fish. However, one disadvantage of the higher lipid concentration in fish is the potential for increased rates of lipid oxidation, which could affect fish health and contribute to off-flavors in fillets. The objective of this experiment was to determine...
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