The amino acid taurine is a crucial ingredient in the diet of many commercially important fish species, but the removal of fishmeal from diets may cause a deficiency, write Guillaume Salze and Allen Davis from Auburn University.
The use of organic acid supplements in the diet of commercially farmed shrimp led to greater nutrient utilisation and some protection from pathogenic bacteria, write Wing-Keong Ng and colleagues from Universiti Sains Malaysia.