PRODUCTION OF SCENEDESMUS DIMORPHUS GROWN ON SOME WASTES (POULTRY MANURE) USED IN AQUACULTURE

Document Type : Original Article

Author

Central Laboratory for Aquaculture Research, Abbassa, Ecology and Biology Department, Agricultural Research Center, Ministry of Agriculture, Cairo, Egypt.

Abstract

As compared to Bold's basal medium (B.B.M.), high yields of Scenedesmus dimorphus in terms of cell number, protein, chlorophyll "a" and algal dry weight contents were achieved at low concentrations of  poultry manure water extract (0.2% - 0.6%). Cell diameter and dry weight increased with increasing waste concentration. Nucleic acid contents of Scenedesmus dimorphus grown on poultry manure were lower than that values obtained when the alga was grown on Bold's basal medium (B.B.M.). A well balanced distribution of protein amino acids was found in Scenedesmus dimorphus grown on water extract of poultry manure, which was comparable with that of FAO reference protein. Also it was found that such protein had a chemical score of 61.1 while the protein of Scenedesmus dimorphus grown on Bold's basal medium had a chemical score, which equals 47.4.

Keywords


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