Fish actively consumed the experimental diets, and the similarity in
feed intake among treatments indicates that high levels of FM sparing
with SPC and H. pluvialis meal in combination with squid meal did not
affect diet palatability. Little is known about the effects of algal proteins
on performance of farmed carnivorous fish. Poor palatability and reduced feed intake were noted in Atlantic cod (Gadus morhua) fed diets
in which 30% of dietary FM (281 g kg−1 diet) had been replaced by
mixed algae (Walker and Berlinsky, 2011). In our study, the maximum
level of algal meal inclusion was 194.5 g kg−1 (H. pluvialis and
S. limacinum in FM75), which caused no negative effect on feed intake
compared to the FM100 diet