Eight tanks (two per feed
type) were fed twice day1 and the other eight (again two per feed
type) eight times day1 using a programmable feeder (EHEIM
3581). The crude energy in each feed was 22.4, 21.7, 21.5 and
21.7 MJ kg1 respectively. Palatability was very similar in the four
diets examined, and no apparent differences with the commercial
feed used previously were appreciated. Fish were fed at a ration of
10% of the body weight