Study

Growth, feed efficiency and digestibility in salmon (Salmo salar L.) fed different dietary proportions of vegetable protein sources in combination with two fish meal qualities

  • Published source details Mundheim H., Aksnes A. & Hope B. (2004) Growth, feed efficiency and digestibility in salmon (Salmo salar L.) fed different dietary proportions of vegetable protein sources in combination with two fish meal qualities. Aquaculture, 237, 315-331.

Actions

This study is summarised as evidence for the following.

Action Category

Use an alternative protein source: plant-based

Action Link
Sustainable Aquaculture
  1. Use an alternative protein source: plant-based

    A randomised, replicated study in Norway (Mundheim et al., 2004) found lower final average body weights when salmon, Salmo salar, were fed diets containing reduced fish meal content, replaced with a vegetable protein blend. Salmon fed 34.7% fish meal were 13.3% lighter than those fed 85.1% fish meal. Growth rates, feeding efficiency and digestibility of protein also decreased with increasing percentages of vegetable protein. Feed intake was higher when food contained a lower proportion of fish meal. Salmon were fed eight diets (four high and four lower quality fish meal) where the percentage of fish meal to vegetable protein was either 85.1%, 68.6%, 51.9% or 34.7%. The vegetable protein blend was composed of full-fat soybean meal and maize gluten meal at a ratio of 1:2. Fish were fed for 11 weeks using automated feeders under controlled environmental conditions. Final body weight, growth rates, feeding efficiency and protein digestibility were measured.

     

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