Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/32170
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Seasonal effects on growth and product quality in Atlantic salmon fed diets containing terrestrial oils as assessed by a long-term, on-farm growth trial
Author(s): Mock, Thomas S
Francis, David S
Jago, Matthew K
Miles, Paige C
Glencross, Brett D
Smullen, Richard P
Keast, Russell S J
Turchini, Giovanni M
Contact Email: b.d.glencross@stir.ac.uk
Keywords: aquafeed
lipid
oil
quality
Salmo salar
season
water temperature
Issue Date: Apr-2021
Date Deposited: 15-Jan-2021
Citation: Mock TS, Francis DS, Jago MK, Miles PC, Glencross BD, Smullen RP, Keast RSJ & Turchini GM (2021) Seasonal effects on growth and product quality in Atlantic salmon fed diets containing terrestrial oils as assessed by a long-term, on-farm growth trial. Aquaculture Nutrition, 27 (2), pp. 477-490. https://doi.org/10.1111/anu.13200
Abstract: Seasonal changes in water temperature affect the utilization of dietary fatty acids in Atlantic salmon (Salmo salar L.). Furthermore, fatty acid profiles of terrestrial oils dictate their suitability in terms of provision of metabolic energy and final product quality. An on‐farm, growth trial of Atlantic salmon was conducted in Tasmania, Australia over the final year of grow‐out (323 days), consisting of a ‘summer phase’ and a ‘winter phase’. Poultry by‐product oil, canola oil and tallow were fed at high dietary lipid inclusion level (80%) to assess growth, fillet fatty acid composition and sensorial attributes. In the summer phase, the tallow diet appeared to provide added substrate for metabolic energy, potentially enhancing the deposition of n‐3 LC PUFA into the fillet, despite lower final weight and a reduced apparent lipid digestibility. Subsequent winter phase results suggested all diets adequately provided metabolic energy and fillet n‐3 LC PUFA concentrations were comparable. Additionally, this study highlights the importance of a well‐considered experimental design and subsequent statistical interpretation, for commercial scale, on‐farm feeding trials. Ultimately, this study demonstrates the importance of seasonally tailored diets for Atlantic salmon, using high terrestrial oil inclusion, under challenging Australian farming conditions.
DOI Link: 10.1111/anu.13200
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: Mock, TS, Francis, DS, Jago, MK, et al. Seasonal effects on growth and product quality in Atlantic salmon fed diets containing terrestrial oils as assessed by a long-term, on-farm growth trial. Aquaculture Nutrition 2021; 27: 477– 490, which has been published in final form at https://doi.org/10.1111/anu.13200. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for self-archiving.
Licence URL(s): https://storre.stir.ac.uk/STORREEndUserLicence.pdf

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