Cultured mud crabs (Scylla spp.) are commonly fed with 'trash' fosh has lead to a need to develop cost-effective and environmentally friendly formulated diets. This study was conducted to determine quality of selected feed ingredients as protein soures in mud crab diets based on their nutrient composition and digestibility coefficients for ADMD ranged from 82.46% to 89.20%. Animal-based feedstuffs such as shrimp head, tiny shrimp and squid liver meal had higher ADMD values than fish meal.