1 Aquaculture and Fish Nutrition Research Group, School of Biological Sciences, CARS, Plymouth University, UK; Kerbala University, Iraq.
2 Aquaculture and Fish Nutrition Research Group, School of Biological Sciences, CARS, Plymouth University, UK.
3 Lallemand Animal Nutrition, Blagnac, France.
4 Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, 60131, Ancona, Italy.
5 BioMar Ltd, North Shore Road, Grangemouth, UK.
6 Laboratorio de Biotenología, Instituto de Nutrición y Tecnología de los Alimentos (INTA), Univesidad de Chile, Santiago, Chile.
7 Aquaculture and Fish Nutrition Research Group, School of Biological Sciences, CARS, Plymouth University, UK. Electronic address: daniel.merrifield@plymouth.ac.uk.