OPTIMIZING MUD CRAB (SCYLLA SERRATA) FATTENING WITH VARIED DIETARY PROTEIN LEVELS FROM FISHERY BY-PRODUCTS

Abstract

Mud crabs, classified under the genus Scylla, are prominent crustaceans inhabiting the tropical Indo-West Pacific region, particularly in mangrove swamps and coastal habitats across South and Southeast Asia. Recognized for their sizable edible forms, they are commonly referred to as mangrove crabs. In Sri Lanka, they are locally known as "kalapu kakuluwa". Among the Scylla genus, Scylla serrata, Scylla tranquebarica, Scylla olivacea, and Scylla paramamosain are distinct species, with S. serrata being the most prevalent in the Asian-Pacific region. These crabs are esteemed for their delectable taste, distinctive texture, and rich nutritional profile. Their meat is a valuable source of essential amino acids, proteins, and polyunsaturated fatty acids (PUFAs), along with vital minerals including calcium, iron, zinc, potassium, and phosphorus. In the Indo-Pacific region, mud crab aquaculture assumes a pivotal role in the economies of small-scale fisheries.