Effects of Crab Shellmeal Inclusions to Fishmeal Replacement on the Survival, Growth, and Feed Utilization of Mangrove Crab Scylla serrata (Forsskal 1775)

Authors : Melodina HAİROL, Cherry NİAN, Ainulyakin IMLANI, Jurma TİKMASAN, Jurmin SARRİ

Pages : 714-726

Doi:10.29133/yyutbd.1131220

View : 13 | Download : 6

Publication Date : 2022-12-30

Article Type : Research Paper

Abstract :Mangrove crab Scylla serrata is associated with mangroves throughout the Indian and Pacific oceans. This species is crucial to aquaculture and fishing. As wild stocks decline and demand rises, mangrove crab aquaculture has become increasingly popular. However, feed development research and its quality are still meager in the industry. This study examined the interactive effects of different levels of crab shellmeal insert ignore into journalissuearticles values(CSM); to fishmeal insert ignore into journalissuearticles values(FM); replacement on proximate composition, feed utilization, carcass composition, growth, and survival performance of mangrove crab S. serrata. Four formulated diets were prepared, and one for chopped trash fish insert ignore into journalissuearticles values(TF); supplement: 30% FM and 0% CSM insert ignore into journalissuearticles values(Diet 1); as a negative control, 20% FM and 10% CSM insert ignore into journalissuearticles values(Diet 2);, 10% FM and 20% CSM insert ignore into journalissuearticles values(Diet 3);, 0% FM and 30% CSM insert ignore into journalissuearticles values(Diet 4);, and TF as a positive control insert ignore into journalissuearticles values(Diet 5);. Experiments were conducted in each group for 30 days with ten replicates. Results revealed that formulated diets using different levels of CSM and FM did not significantly affect mangrove crabs\` growth and survival rates as well as feed utilization. However, the proximate composition of Diet 4 was significantly higher among other experimental diets. Moreover, the crab\`s whole body composition insert ignore into journalissuearticles values(ash, moisture, carbohydrates, crude protein, crude fat, and calories); with different levels of CSM and FM was significantly improved. Hence, it is possible to enhance the carcass composition and proximate composition by supplementing CSM; however, it has no effect on feed utilization, as well as the growth and survival rates of mangrove crab S. serrata.
Keywords : Crab shellmeal, Fishmeal, Growth, Mangrove crab, Survival