Inclusion of camelina meal as a protein source in diets for farmed Atlantic cod Gadus morhua

Camelina meal Camelina saliva (CM) is a potential protein source in aquaculture feeds, because of its crude protein level (39%) and essential amino acids. Two feeding experiments were conducted with Atlantic cod Gadus morhua. Cod in Experiment I (19.4 g fish(-1)) were led diets with 0%, 12% or 24% CM for 9.5 weeks at 10 degrees C; and cod in Experiment II (14.4 g fish(-1)) were fed diets with 0%, 15%, 30% or 40% CM for 13 weeks at 10 degrees C. Growth, lipid and amino acid tissue composition amongst cod fed varying levels CM. In Experiment I cod could tolerate the highest level of CM inclusion (24%) without affecting growth compared to cod fed the control diet. In Experiment II, growth performance was significantly affected at 30% CM inclusion compared to the control treatment, and cod fed 15% CM dis-played some signs of depressed growth (reduced feed intake and weight gain). Roth treatment and dui anon were interacting factors (P = 0.015) that determined growth performance when comparing both experiments. Muscle tissue composition was relatively unaltered with 30% CM undo slow however, multivariate statistics revealed significant differences in muscle tissue fatty acid composition between cod fed 40% CM and the control diet. The tissue amino acid profile Was generally unaltered because the dietary amino acid profile was consistent after CM inclusion. A few antinutritive compounds in CM may have affected palatability in diets with greater than 30% CM which may have resulted it lit reduced growth performance.