Some microorganisms isolated from the marine environment have been used to treat the remains of marine organisms. These organisms were characterized by their ability to secrete an enzymatic spectrum which separate the compounds in the marine organisms residues. Also they were characterized by building their protein-rich biomass through their metabolism. Results showed the highest percentage of the total protein in fermented biomass by Micrococcus variants reached to 42.11%. It can be used as a substitute for traditional vegetable and animal protein in animal feed through the application of three fodder mixtures where the produced protein replaces soybean protein and fishmeal protein. Also its effect on the growth of the shrimp Palaemon longirostris was studied. Most of the studied treatments showed a converging of the results. The best of which was the second mixture where the resulting biomass substituted soybean with fishmeal as protein sources for the results of (CLI %, PER, GGE%). The mean value of the coefficientof increased the length of the carapace was 20.76%, and the protein efficiency ratio was 0.99. The total growth efficiency was 37.45%.
