Effect of Growth Medium Nitrogen and Phosphorus on Nutritional Composition of Lemna Minor (an Alternative Fish and Poultry Feed)

Le résumé fourni par la source

Abstract Duckweed (L. minor) belongs to the family of aquatic macrophytes and grows profoundly on the surface of water reservoirs in polluted areas of Pakistan. The plant can be used as a potential alternative for the fish and poultry industry to comply with the promptly growing demand for feed. Our study investigates the effect of varying concentrations (ppm) of nutrients, like nitrogen (N), phosphorus(P) and their combination (NP) on the carbohydrate, lipid, protein, and mineral (Ca, Mg, Fe, Mn & Zn) contents of the duckweed (L. minor). A substantial effect of varying concentrations of N, P and their combinations was seen on all the above-mentioned parameters. Higher protein, lipid, and carbohydrate contents were recorded for 30ppm NP, 20ppm NP, and 10ppm NP, respectively. Minerals contents (Ca, Mg, Fe, Mn & Zn) increased by 20ppm in the case of phosphorus and all nitrogen concentrations. The combined application of NP was more effective in boosting up the protein, carbohydrate, and lipid content whereas less effective in increasing the mineral contents. The NP combinations affected all other parameters except the mineral contents. A decline in the concentration of (N) and (P) showed a negative correlation with the nutritional composition of the plant.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.