Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss)

The aim of the present study was to determine the effects of replacing fish oil (FO) with cottonseed oil (CSO), as an alternative plant lipid source in diets for rainbow trout (89.3 ± 1.1 g mean individual weight), on the growth and fatty acid composition of fish. As a control diet, 5 experimental diets were formulated with pure FO and with partial or complete (25%, 50%, 75%, or 100% CSO, respectively) replacement of FO with CSO. The fish were fed 2% of their body weight per day for 60 days at an average water temperature of 10.2 °C. At the end of the feeding trial, the highest growth and the lowest FCR (1.28) were obtained in fish fed the CSO50 diet. The fillet lipid concentrations and fatty acid composition of the fish were significantly affected by the experimental diets. Fish fed the FO and CSO25 diets contained significantly lower lipid levels (6.8% and 6.5%, respectively) than those fed the 3 other diets. The viscerosomatic index (VSI) and hepatosomatic index (HSI) values increased with increasing cottonseed oil percentages in the diets. Fillet fatty acid composition reflected dietary fatty acid composition. The n-6 polyunsaturated fatty acid (PUFA) concentration increased with increasing cottonseed oil levels in the diets. In contrast, the n-3 PUFA levels decreased with increasing cottonseed oil levels in the diets. The highest level of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) concentrations were recorded in fish fed the FO diet and the lowest in those fed the CSO100 diet. Based on the results of growth performance and fatty acid composition of the experimental fish in the present study, it can be concluded that the 50% concentration of cottonseed oil performed best among the diets tested in the experiment.

Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss)

The aim of the present study was to determine the effects of replacing fish oil (FO) with cottonseed oil (CSO), as an alternative plant lipid source in diets for rainbow trout (89.3 ± 1.1 g mean individual weight), on the growth and fatty acid composition of fish. As a control diet, 5 experimental diets were formulated with pure FO and with partial or complete (25%, 50%, 75%, or 100% CSO, respectively) replacement of FO with CSO. The fish were fed 2% of their body weight per day for 60 days at an average water temperature of 10.2 °C. At the end of the feeding trial, the highest growth and the lowest FCR (1.28) were obtained in fish fed the CSO50 diet. The fillet lipid concentrations and fatty acid composition of the fish were significantly affected by the experimental diets. Fish fed the FO and CSO25 diets contained significantly lower lipid levels (6.8% and 6.5%, respectively) than those fed the 3 other diets. The viscerosomatic index (VSI) and hepatosomatic index (HSI) values increased with increasing cottonseed oil percentages in the diets. Fillet fatty acid composition reflected dietary fatty acid composition. The n-6 polyunsaturated fatty acid (PUFA) concentration increased with increasing cottonseed oil levels in the diets. In contrast, the n-3 PUFA levels decreased with increasing cottonseed oil levels in the diets. The highest level of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) concentrations were recorded in fish fed the FO diet and the lowest in those fed the CSO100 diet. Based on the results of growth performance and fatty acid composition of the experimental fish in the present study, it can be concluded that the 50% concentration of cottonseed oil performed best among the diets tested in the experiment.

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Bibtex @ { tbtkveterinary150792, journal = {Turkish Journal of Veterinary and Animal Sciences}, issn = {1300-0128}, eissn = {1303-6181}, address = {}, publisher = {TÜBİTAK}, year = {2011}, volume = {35}, pages = {157 - 167}, doi = {}, title = {Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss)}, key = {cite}, author = {Güler, Müjde and Yıldız, Mustafa} }
APA Güler, M , Yıldız, M . (2011). Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss) . Turkish Journal of Veterinary and Animal Sciences , 35 (3) , 157-167 .
MLA Güler, M , Yıldız, M . "Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss)" . Turkish Journal of Veterinary and Animal Sciences 35 (2011 ): 157-167 <
Chicago Güler, M , Yıldız, M . "Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss)". Turkish Journal of Veterinary and Animal Sciences 35 (2011 ): 157-167
RIS TY - JOUR T1 - Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss) AU - Müjde Güler , Mustafa Yıldız Y1 - 2011 PY - 2011 N1 - DO - T2 - Turkish Journal of Veterinary and Animal Sciences JF - Journal JO - JOR SP - 157 EP - 167 VL - 35 IS - 3 SN - 1300-0128-1303-6181 M3 - UR - Y2 - 2021 ER -
EndNote %0 Turkish Journal of Veterinary and Animal Sciences Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss) %A Müjde Güler , Mustafa Yıldız %T Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss) %D 2011 %J Turkish Journal of Veterinary and Animal Sciences %P 1300-0128-1303-6181 %V 35 %N 3 %R %U
ISNAD Güler, Müjde , Yıldız, Mustafa . "Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss)". Turkish Journal of Veterinary and Animal Sciences 35 / 3 (Mart 2011): 157-167 .
AMA Güler M , Yıldız M . Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss). Turkish Journal of Veterinary and Animal Sciences. 2011; 35(3): 157-167.
Vancouver Güler M , Yıldız M . Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss). Turkish Journal of Veterinary and Animal Sciences. 2011; 35(3): 157-167.
IEEE M. Güler ve M. Yıldız , "Effects of dietary fish oil replacement by cottonseed oil on growth performance and fatty acid composition of rainbow trout (Oncorhynchus mykiss)", Turkish Journal of Veterinary and Animal Sciences, c. 35, sayı. 3, ss. 157-167, Mar. 2011
Turkish Journal of Veterinary and Animal Sciences
  • ISSN: 1300-0128
  • Yayın Aralığı: Yılda 6 Sayı
  • Yayıncı: TÜBİTAK

60.9b55.8b

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