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Helgoland Marine Research

Open Access

The growth of O-group plaice on artificial diets containing different levels of protein

  • C. B. Cowey1,
  • J. W. Adron1,
  • A. Blair1 and
  • J. Pope2
Helgoländer wissenschaftliche Meeresuntersuchungen20:BF01609932


1. Group-O plaice,Pleuronectes plattessa L., were grown on partially defined diets containing different levels of protein.

2. The growth rate appeared to increase linearly as the protein content of the diet was increased up to the highest level used (70% of the dry diet).

3. A conversion rate of 1.6 was obtained with diets containing 50% or more of protein.

4. The protein efficiency ratio on all diets was near unity. The maximum value obtained being 1.16 with the 50% protein diet.


TryptophaneCystineArtificial DietEfficiency RatioProtein Efficiency Ratio