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Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Commentary: comparing efficiency in aquatic and terrestrial animal production systems
Author(s): Tlusty, Michael
Tyedmers, Peter
Ziegler, Friederike
Jonell, Malin
Henriksson, Patrik
Newton, Richard
Little, David C
Fry, Jillian Parry
Love, David
Cao, Ling
Issue Date: 31-Dec-2018
Date Deposited: 6-Dec-2018
Citation: Tlusty M, Tyedmers P, Ziegler F, Jonell M, Henriksson P, Newton R, Little DC, Fry JP, Love D & Cao L (2018) Commentary: comparing efficiency in aquatic and terrestrial animal production systems. Commentary on: Fry J P, Mailloux N A, Love D C, Milli M C and Cao L 2018a Feed conversion efficiency in aquaculture: do we measure it correctly? Environ. Res. Lett. 13 24017. Environmental Research Letters, 13 (12), Art. No.: 128001.
Abstract: First paragraph: Aquaculture is receiving increased attention from a variety of stakeholders. This is largely due to its current role in the global food system of supplying more than half of the seafood consumed, and also because the industry continues to steadily expand (UN Food and Agriculture Organization 2018). A recent article in Environmental Research Letters, 'Feed conversion efficiency in aquaculture: do we measure it correctly?', by Fry et al (2018a) found that measuring feed conversion efficiency of selected aquatic and terrestrial farmed animals using protein and calorie retention resulted in species comparisons (least to most efficient) and overlap among species dissimilar from comparisons based on widely used weight-based feed conversion ratio (FCR) values. The study prompted spirited discussions among researchers, industry representatives, and others. A group assembled to write a standard rebuttal, but during this process, decided it was best to engage the study's original authors to join the discourse. Through this collaboration, we provide the resultant additional context relevant to the study in order to advance conversations and research on the use of efficiency measures in aquatic and terrestrial animal production systems.
DOI Link: 10.1088/1748-9326/aae945
Rights: Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence ( Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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