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Abstract
1. The nutritional value of a sample of algae meal, mainly Chlorella, was assessed in an experiment with laying hens. The algae meal was that described by Lipstein and Hurwitz (1980).
2. Diets formulated by linear programming contained up to 120 g algae meal/kg with supplementary DL‐methionine.
3. There were no significant effects of dietary algae meal on egg output, food conversion or egg‐shell quality. Thus algae meal at the concentrations tested can be a useful substitute for soyabean meal in diets for laying hens.
4. High concentrations of dietary algae meal caused a deep yellow yolk colour of acceptable appearance.