2018-07-302018-07-302017Reviews in Aquaculture, online first 16 June1753-5123https://hdl.handle.net/20.500.12348/156Improving feed efficiency (FE) is key to reducing production costs in aquaculture and to achieving sustainability for the aquaculture industry. Feed costs account for 30-70% of total production costs in aquaculture; much work has been done on nutritional and husbandry approaches to improve FE but only a limited amount of research has been devoted to using genetics, despite its potential. This paper reviews past work to improve FE in fish using selective breeding and assess future directions.application/pdfJournal Articlehttps://doi.org/10.1111/raq.12202