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Seasonal comparison of wild and farmed brown trout (Salmo trutta forma fario L., 1758): crude lipid, gonadosomatic index and fatty acids.
Int J Food Sci Nutr. 2009 Aug; 60(5):413-23.IJ

Abstract

Brown trout is one of the most preferred wild freshwater fish species in the east Black Sea region (Turkey) due to its nutritional value and palatable aroma as well as being popular for sport fishing. In this research, seasonal variations in the crude lipid, gonadosomatic index and fatty acid composition of wild and farmed brown trout were investigated. The spawning period of wild and farmed brown trout appears to be from August to October and from October to January, respectively. The mean crude lipid content in farmed brown trout (3.62%) was significantly higher (P≤0.05) than that of wild brown trout (2.80%). Significant seasonal differences (P≤0.05) in crude lipid content were observed in both fish. The percentage of total saturated fatty acids was similar (P≥0.05) in both fish. Total polyunsaturated fatty acids were higher (P≤0.05) in the wild brown trout compared with the farmed brown trout, while its total monounsaturated fatty acids content was lower (P≤0.05). The muscle lipids of wild fish contained significantly (P≤0.05) higher percentages of C16:1n-7, C17:1n-7, C18:3n-3, C20:2n-6, C20:4n-6, C20:5n-3 and C22:2n-6 fatty acids and contained lower percentages of C14:0, C18:1n-9, C18:2n-6, C20:1n-9, C24:1n-9 and C22:6n-3 fatty acids than farmed fish. The total amounts of n-3 fatty acids in wild fish were higher than in farmed fish, but total amounts of n-6 fatty acids in farmed fish were higher than in wild fish. The n3/n6 proportion in wild fish was higher than that of farmed fish.

Authors+Show Affiliations

University of Ondokuz Mayis, Faculty of Fisheries, Department of Fishing and Processing Technology, Sinop, Turkey. yalckaya@gmail.comNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

18651298

Citation

Kaya, Yalçin, and Mehmet Emіn Erdem. "Seasonal Comparison of Wild and Farmed Brown Trout (Salmo Trutta Forma Fario L., 1758): Crude Lipid, Gonadosomatic Index and Fatty Acids." International Journal of Food Sciences and Nutrition, vol. 60, no. 5, 2009, pp. 413-23.
Kaya Y, Erdem ME. Seasonal comparison of wild and farmed brown trout (Salmo trutta forma fario L., 1758): crude lipid, gonadosomatic index and fatty acids. Int J Food Sci Nutr. 2009;60(5):413-23.
Kaya, Y., & Erdem, M. E. (2009). Seasonal comparison of wild and farmed brown trout (Salmo trutta forma fario L., 1758): crude lipid, gonadosomatic index and fatty acids. International Journal of Food Sciences and Nutrition, 60(5), 413-23. https://doi.org/10.1080/09637480701777886
Kaya Y, Erdem ME. Seasonal Comparison of Wild and Farmed Brown Trout (Salmo Trutta Forma Fario L., 1758): Crude Lipid, Gonadosomatic Index and Fatty Acids. Int J Food Sci Nutr. 2009;60(5):413-23. PubMed PMID: 18651298.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Seasonal comparison of wild and farmed brown trout (Salmo trutta forma fario L., 1758): crude lipid, gonadosomatic index and fatty acids. AU - Kaya,Yalçin, AU - Erdem,Mehmet Emіn, PY - 2008/7/25/entrez PY - 2008/7/25/pubmed PY - 2013/9/4/medline SP - 413 EP - 23 JF - International journal of food sciences and nutrition JO - Int J Food Sci Nutr VL - 60 IS - 5 N2 - Brown trout is one of the most preferred wild freshwater fish species in the east Black Sea region (Turkey) due to its nutritional value and palatable aroma as well as being popular for sport fishing. In this research, seasonal variations in the crude lipid, gonadosomatic index and fatty acid composition of wild and farmed brown trout were investigated. The spawning period of wild and farmed brown trout appears to be from August to October and from October to January, respectively. The mean crude lipid content in farmed brown trout (3.62%) was significantly higher (P≤0.05) than that of wild brown trout (2.80%). Significant seasonal differences (P≤0.05) in crude lipid content were observed in both fish. The percentage of total saturated fatty acids was similar (P≥0.05) in both fish. Total polyunsaturated fatty acids were higher (P≤0.05) in the wild brown trout compared with the farmed brown trout, while its total monounsaturated fatty acids content was lower (P≤0.05). The muscle lipids of wild fish contained significantly (P≤0.05) higher percentages of C16:1n-7, C17:1n-7, C18:3n-3, C20:2n-6, C20:4n-6, C20:5n-3 and C22:2n-6 fatty acids and contained lower percentages of C14:0, C18:1n-9, C18:2n-6, C20:1n-9, C24:1n-9 and C22:6n-3 fatty acids than farmed fish. The total amounts of n-3 fatty acids in wild fish were higher than in farmed fish, but total amounts of n-6 fatty acids in farmed fish were higher than in wild fish. The n3/n6 proportion in wild fish was higher than that of farmed fish. SN - 1465-3478 UR - https://www.unboundmedicine.com/medline/citation/18651298/Seasonal_comparison_of_wild_and_farmed_brown_trout__Salmo_trutta_forma_fario_L__1758_:_crude_lipid_gonadosomatic_index_and_fatty_acids_ L2 - http://www.tandfonline.com/doi/full/10.1080/09637480701777886 DB - PRIME DP - Unbound Medicine ER -