1. HAU Aquaculture Centre, Department of Animal Production, Welfare and Veterinary Sciences; Harper Adams University; Newport Shropshire UK
2. School of Marine and Biological Sciences; University of Plymouth, Plymouth; Plymouth UK
3. Departamento de Biologia, Faculdade de Ciências do Porto; Universidade do Porto; Porto Portugal
4. CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental; Porto Portugal
5. Fish Nutrition Laboratory, Animal Production Department; Faculty of Agriculture; Cairo Egypt
6. Beacon Research Ltd, Greenleigh; Harborough UK
7. Aquaculture Division, Fish Nutrition Laboratory; National Institute of Oceanography and Fisheries (NIOF); Cairo Egypt