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Prawn is nutritious delicacy to mankind. Fishmeal is a chief value protein ingredient in prawn feed, which is a depleting resource. The present study was conducted to assess whether edible Mushroom, Agaricus bisporus can partially be replaced the fishmeal to promote the growth of the freshwater prawn, Macrobrachium rosenbergii post-larvae (PL). In the methanolic extract of A. bisporus, the presence of terpenoids, flavonoids, polyphenols, saponins and cardiac glycosides were qualitatively detected. In the petrolium etheric extract of A. bisporus, the presence of alkaloids, terpenoids, tannins, polyphenols, cardiac glycosides and quinines were qualitatively detected. A. bisporus, containing 14 secondary phytochemicals, of which 9 compounds {Dodecanoic acid; Tetradecanoic acid; 2-Pentadecanone, 6, 10, 14-trimethyl; Hexadecanoic acid, methyl ester; 4-(6, 6-Dimethyl-2-methylenecyclohex-3-enylidene) pentan-2-ol; Tetradecanoic acid; Neophytadiene; Hexadecanoic acid; 9, 12, 15-Octadecatrienoic acid, ethyl ester, (Z, Z, Z)-} having bioactive properties. Isonitric diets were prepared by replacement of the fishmeal (25%, 50%, 75% and 100%) with A. bisporus powder. Diet prepared without replacement of fishmeal was served as control. These diets were fed to M. rosenbergii PL (1.00±0.20 cm in length and 0.07±0.02 g in weight) for 90 days, and 75% fishmeal replaced diet produced significant elevations in survival and growth rates, muscle total protein, amino acid, carbohydrate, lipid and ash contents, profiles of proteins, amino acids and fatty acids and activities of protease, amylase and lipase when compared with control. Thus, it is recommended that up to 75% of fishmeal can be replaced with A. bisporus for sustainable maintenance of M. rosenbergii seeds in the nursery. This would offer better nutrition and employment opportunity.

integrative food, nutrition and metabolism

Phytochemical characterization of the mushroom Agaricus bisporus and assessment of its nutritional ability in the place of fishmeal for survival and growth of the freshwater prawn Macrobrachium rosenbergii post-larvae