α-tocopherol content in trout oil

The content of α-tocopherol in 40 trout oils of the species Oncorhynchus mykiss (rainbow trout), corresponding to different growth stages is studied by means of high-performance liquid chromatography with UV detection. No significant difference was found (P > 0.05) between sexes in adult samples, while the growth stage significantly (P > 0.05) influenced the content of α-tocopherol, the highest value corresponding to the youngest trout. All oils exceed the 0.4 mg α-tocopherol/g PUFA recommended by the National Research Council, Washington, DC, USA.