ARTICLE 62 FEED & ADDITIVE MAGAZINE January 2023 INTRODUCTION Aquaculture plays a major role in the food production industry and supporting the protein needs of world population. Aquaculture is reliant primarily on fishmeal from wild fish as its main source of protein. Many researches being done to form alternative protein sources and improving the utilization efficiency of dietary protein is important for the sustainable development of aquaculture. The fish processing industry produces more than 60% by-products as waste, which incorporates head, skin, trimmings, fins, frames, viscera and roes. For, this reason better waste management system required overcoming the environmental issues and it should have economical value at the same time. These by-product wastes contain good amount of protein rich material that are processed into make aquafeed. Protein hydrolysates are breakdown products of enzymatic conversion of proteins into smaller peptides that contain 2–20 amino acids. Due to the smaller peptide size, hydrolysates are the foremost available amino acid source for various physiological functions of animal body. SOURCES OF FPH Fish protein hydrolysate (FPH) can be produced from both freshwater and marine fish viscera. Fish fillets are often considered the most desired product in the market, even up to 60% of the harvested fish volume being discarded during processing. The production of FPH also uses fish skin from the fish processing sector, which is rich in collagen and gelatine. A substantial amount of protein is also found in fish heads produced by the fish processing industry. FPH can be also produced from fish bones and fish frames of various species including shortfin scad, cod and ribbon fish. FISH PROTEIN HYDROLYSATES IN AQUAFEED “The fish processing industry produces more than 60% by-products as waste, which incorporates head, skin, trimmings, fins, frames, viscera and roes. These by-product wastes contain good amount of protein rich material that are processed into make aquafeed.” Sanjay Gopal Master Student Tamil Nadu Dr. J. Jayalaithaa Fisheries University Sathishkumar Chinnakkannu Master Student Tamil Nadu Dr. J. Jayalaithaa Fisheries University Mir Ishfaq Nazir Assistant Professor Tamil Nadu Dr. J. Jayalaithaa Fisheries University
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