The nutritional value of algae for poultry. dried chlorella in broiler diets1

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Abstract
The nutritional value of a sample of algae meal, mainly Chlorella, was assessed in 2 chick and 2 broiler trials. The algae were drum-dried after harvesting from sewage ponds by centrifugation. Diets formulated by linear programming contained between 60 and 150 g algae meal/kg by substituting algae meal and sorghum for fish meal, soybean meal and maize in a control diet. The effects of the dietary algae meal ranged from nil to a significant depression of growth rate and food utilization. In certain cases growth retardation was associated with depressed food consumption. The metabolizable energy concentration of the algae meal was estimated to be 11.62 MJ/kg and the nitrogen absorption coefficient 0.81.