Marine ash-products influence growth and feed utilization when Atlantic cod Gadus morhua L. are fed plant-based diets

Atlantic cod Gadus morhua L. were fed high plant protein diets added to either shrimp-shell meal or crab-shell meal. The aims were to investigate if diluting dietary energy would reduce the liver index (HSI) and if marine ash would add value to plant protein-based diets. Two control diets were used: a high plant protein control diet (PP) with no marine ash addition, and a fishmeal-based diet (FM) with no marine ash addition. All diets were...