Aquaculture is the sector most likely to meet the challenge of the world's current and future food needs. Success in feeding the world needs successful feeding strategies. Christian Lückstädt explores some of the solutions presented at this year's world aquaculture society's annual meeting held in Bali.

Commercial production of cod has been in the pipeline for some 10-15 years. In response to depletion of wild stocks of this popular marine fish. Development was so protracted due to cod's complex nutritional requirements. Grethe Rosenlund explains how Nutreco have solved many of the problems so farmed cod can finally appear on the menu.

In this regular contribution to Feed Tech, Dr Joachim Hertrampf comments on issues that affect shrimp farming and feeding. Dr Hertrampf regularly writes 'hands-on' articles as a consultant for the monthly newsletter Shrimp Matters, of The Waterbase in Chennai, India. This column focuses on the effect of histidine as a precursor for fish going foul.