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Providing evidence to improve practice

Individual study: Fish size at vaccination influence the development of side-effects in Atlantic salmon (Salmo Salar L.)

Published source details

Berg A., Rødseth O.M. & Hansen T. (2007) Fish size at vaccination influence the development of side-effects in Atlantic salmon (Salmo Salar L.). Aquaculture, 265, 9-15


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Use an alternative protein source: bacteria Sustainable Aquaculture

A replicated, controlled, randomised study in Norway (Berg et al., 2007) found similar growth rates in salmon, Salmo salar, fed diets containing 10% and 20% bacterial protein compared to a 100% fish meal diet (control). Salmon weight in the three groups increased on average 3.6-3.9kg over the five month experiment. Three diets were fed to groups of 1,000 caged salmon (two groups per diet) in which bacterial protein grown on natural gas made up 10 or 20 % of the ingredients replacing fish meal. For the first two months, fish were fed by automated feeders four times a day for 30 minutes, followed by three meals a day for the rest of the experiment. Fish weights were recorded at 0, 2, 4 and 5 months.