slaughter qualityFour extruded diets differing in protein/fat concentrations,
378/389 g kg–1, 425/346 g kg–1, 480/308 g kg–1 and 524/256 g
kg–1 were tested in a digestibility trial and a growth study.
Apparent digestibility of protein and fat were not significantly
different among the diets when tested in 1-kg Atlantic salmon,
Salmo salar L., in sea water. The diets represented a range of
digestible protein to digestible energy ratios (DP/DE ratios) of
14.1, 16.4, 18.8 and 21.9 g MJ–1.