Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/24947
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Total Replacement of Dietary Fish Oil with a Blend of Vegetable Oils in the Marine Herbivorous Teleost, Siganus canaliculatus (Forthcoming/Available Online)
Authors: Wang, Shuqi
Liu, Xuebing
Xu, Shude
Wu, Qingyang
You, Cuihong
Monroig, Oscar
Tocher, Douglas R
Li, Yuanyou
Contact Email: om5@stir.ac.uk
Keywords: Siganus canaliculatus
dietary PUFA level
lipid selectivity
growth performance
fatty acid composition
Issue Date: 5-Jun-2017
Citation: Wang S, Liu X, Xu S, Wu Q, You C, Monroig O, Tocher DR & Li Y (2017) Total Replacement of Dietary Fish Oil with a Blend of Vegetable Oils in the Marine Herbivorous Teleost, Siganus canaliculatus (Forthcoming/Available Online), Journal of the World Aquaculture Society.
Abstract: To investigate the feasibility of total replacement of dietary fish oil with vegetable oils (VO) and the optimal dietary polyunsaturated fatty acid (PUFA) level in the marine herbivorous teleost Siganus canaliculatus, six isonitrogenous (32 %) and isolipidic (8 %) diets were formulated. Control diet (FO) used fish oil as lipid source, whereas diets VO1-VO5 contained various blends of palm, soybean, rapeseed and linseed oils, in which the dietary PUFA levels were 42.0 %, 38.2 %, 33.8 %, 29.9 % and 27.1 %, respectively. After S. canaliculatus juveniles were fed with the diets for 9 weeks, their growth performance exhibited no significant difference among the dietary groups. The tissue fatty acid profiles in liver and fillet generally reflected the dietary fatty acid compositions, and showed no significant difference among the VO dietary groups. The results suggested that dietary fish oil can be replaced completely by VO without affecting their growth performance. Concerning the effects of the dietary FA profile on the survival rate, HSI and VSI, and PUFA composition in fillets, diets VO1 and VO2 were more favorable compared with diets VO3–VO5. Considering the availability and cost of the VOs, diet VO2 was recommended for practical use in S. canaliculatus.
DOI Link: http://dx.doi.org/10.1111/jwas.12434
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. This is the peer reviewed version of the following article: Wang, S., Liu, X., Xu, S., Wu, Q., You, C., Monroig, Ó., Tocher, D. R. and Li, Y. (2017), Total Replacement of Dietary Fish Oil with a Blend of Vegetable Oils in the Marine Herbivorous Teleost, Siganus canaliculatus. J World Aquacult Soc., which has been published in final form at https://doi.org/10.1111/jwas.12434. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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