Effects of Habitats and Feeding Patterns on Fatty Acid Profile of Rainbow Trout (Oncorhynchus mykiss)

Year 2019, Volume: 3 Issue: 2, 34 - 39, 28.11.2019

Mustafa Öz

Abstract

In this study, fatty
acid profiles of rainbow trout, which has been bred in farms, and the trouts escaping
from the farm to the nature (fish living in the canal between the farm and the Körkün
Brook) and, which escaped from the farm and reached the Körkün Brook and fed
here with natural nutrients have been compared. The rainbow trout
obtained from the culture medium and the trout escaping from the farms to the
nature were found to be significantly different in the fatty acid profile. The
basic fatty acids of the samples taken from our research groups are; myristic
acid (C14: O-), palmitic acid (C16: 0), palmitoleic acid (C16: 1),
heptadecenoic acid (C17: 1), stearic acid (C18: 0), oleic acid (C18: 1 n9),
linoleic acid (C18: 2 n6), vaccenic acid (C18: 1 n7), linolenic acid (C18: 3
n3), arashidic acid (C20: 0), arashidonic acid (C20: 4n6), eicosapentaenoic
acid (C20: 5 n3), eruric acid (C22: 1 n9), docosahexaenoic acid (C22: 6 n3). In
our study, saturated fatty acids, monounsaturated fatty acids and
polyunsaturated fatty acids were determined respectively; 29.389-21.451%,
25.36-59.49% and 34.17-18.56%. As a result, the habitats and
feeding of the fish affected the fatty acid profile of rainbow trout.

Keywords

Farmed trout, wild trout, fatty acid composition

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