APPARENT DIGESTIBILITY OF SELECTED FEED INGREDIENTS IN DIETS FOR MUD CRAB (Scylla paramamosain)
ABSTRACT: Cultured mud crabs
(Scylla spp.) are commonly fed with ‘trash’ fish. Insufficient supply, high
cost and variable quality of ‘trash’ fish has lead to a need to develop
costeffective and environmentally friendly formulated diets. This study was
conducted to determine quality of selected feed ingredients as protein sources
in mud crab diets based on their nutrient composition and digestibility
coefficients for dry matter(ADMD), crude protein, lipid and energy. The
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. Of the plant-based feedstuffs, soy bean meal had
the highest ADMD values (89.20%) and corn gluten had the lowest(82.46%). Corn
gluten had the lowest protein digestibility (78.81%) and soy bean mealhad the
highest (96.05%). The lowest energy digestibility (71.13%) was obtained in corn
gluten meal. Soy bean meal had a higher energy digestibility value (98.48%)
than fish meal (85.95%). All animal meal sources had similar energy
digestibility values (85.86%—92.09%).
KEYWORDS: digestibility, feed
ingredient, mud crab
Author: Ketut Suwirya
Journal Code: jpperikanangg070005
