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Table 2 Feed composition and formulation of diets during the feeding triala

From: Microbiota in intestinal digesta of Atlantic salmon (Salmo salar), observed from late freshwater stage until one year in seawater, and effects of functional ingredients: a case study from a commercial sized research site in the Arctic region

Feed composition FW-Ref FW-Test SW1-Ref SW1-Test SW2-Ref SW2-Test SW3-Ref SW3-Test
Ingredients (%)
 Marine protein sourcesb 40 40 30 30 19 19 19 19
 Plant protein sourcesc 35 35 39 39 53 53 53 53
 North Atlantic fish oil 9 9 24 24 10 10 10 10
 Rapeseed oil 9 9 7 7 7 7
 Binders & Micronutrients 7 7 7 7 11 11 11 11
 Sum 100 100 100 100 100 100 100 100
Nutrient composition (%)
 Crude protein 44 44 44 44 46 46 46 46
 Crude fat 22 22 28 28 22 22 22 22
 Starch 7.5 7.5 8 8 10 10 10 10
 Crude fiber 1.5 1.5 3 3 3 3 3 3
 Ash 7 7 6 6 5 5 5 5
Functional ingredientsd
 Essential fatty acids
 Nucleotides
 Yeast cell walls
 A prebiotic
  1. aThe composition of four different basic diets varied throughout the time of observation following the strategy developed for this commercial site according to the development and production and health of the fish in the farm. At each observation time, two series of diets were fed, one without functional ingredients (Ref diet) and one with functional ingredients (Test diet). FW, sampling time point in freshwater (May 2016); SW1, the first seawater sampling time point (June 2016); SW2 the second seawater sampling time point (November 2016); SW3, the final seawater sampling time point (April 2017). bMix of Scandinavian origin fish meal and, Fish protein concentrate (Norway). cMix of soy protein concentrate, wheat protein concentrate, wheat gluten, sunflower meal. dInclusion levels were determined according to recommendations from the producers and cannot be disclosed due to commercial interests and intellectual rights
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