Partial Replacement of Fish Meal with Soy Protein Concentrate in Diets of Atlantic Cod

doi:10.1577/A09-085.1

Paper

Partial Replacement of Fish Meal with Soy Protein Concentrate in Diets of Atlantic Cod

Published Oct 1, 2010 · Abigail B. Walker, D. Berlinsky, T. O'Keefe

North American Journal of Aquaculture

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Abstract

Abstract In two feeding trials conducted with juvenile Atlantic cod Gadus morhua (initial mean weight = 87.9 or 15.92 g), soy protein concentrate (SPC) was used to replace fish meal in isonitrogenous, isocaloric diets. In the first trial, five experimental diets (47% protein, 15% fat; calculated gross energy = 5,059 kcal/kg) were formulated to replace 28, 60, 80, and 100% of dietary fish meal. In the second trial, three diets were formulated with SPC to replace 0, 25, and 50% of the fish meal in a modified commercial diet for marine finfish (50% protein, 15% fat; calculated gross energy = 4,900 kcal/kg; calculated digestible energy = 3,570 kcal/kg). Upon conclusion of the studies, no differences in survival, growth, hepatosomatic index, or viscerosomatic index were found among the treatment groups. The fish attained mean weights of 162.7 and 39.1 g in the first and second trials, respectively, with specific growth rates of 0.76% and 1.12% and feed conversion ratios of 1.28 and 1.29, respectively. No consi...

Study Snapshot

Soy protein concentrate can partially replace fish meal in Atlantic cod diets without affecting survival, growth, or feed conversion ratios.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Partial Replacement of Fish Meal with Soy Protein Concentrate in Diets of Atlantic Cod

References

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