Page 60 - New additives and ingredients in the formulation of aquafeeds

At the end of the experience the external appearance of the fish did not
differ between diets (Photo 2).
Photo 2. Sample of
fishes of different diets
after finishing the test
Conclusions trial 1
· Improves absolute weight and performance of the diet.
· Increases the condition factor with possible performance improvement
of the fillet.
· Nitrogen retention increases and the excretion reduces.
· It does not affect the retention/excretion of phosphorus.
· It does not affect the relative proportions of viscera, visceral fat, liver
and gonads.
· It does not affect the biochemical composition of whole fish or fillet.
· Oxidative state of the fillet at the slaughter moment is improved.
· It does not affect the external appearance of the fish.
58 Plant protein isolates and hydrolysates as alternative to the animal protein in aquaculture diets