Asian-Pacific Aquaculture 2019

June 19 - 21, 2019

Chennai Tamil Nadu - India

FATTENING OF MUD CRAB Scylla serrata (FORSKAL, 1775) IN LINED POND USING FLOATING FRP CAGE

 
K.S.Vijay Amirtharaj*, K.Balaji, G.Arul Oli and Vanlalhriatpuii Chawngthu
 
 Mariculture Research Farm Facility
 Department of Aquaculture
 Fisheries College and Research Institute
 Tharuvaikulam - 628 105, Thoothukudi
 vijayamirtharaj@tnfu.ac.in
 

A short term study was conducted to compare the survival and growth of mud crab in floating cages with different 2 feeds in lined pond. Two cages of size 1.52 m × 1.22 m × 0.5 m partitioned into 12 compartments were set in 300 m2 lined pond. The 12 compartments of the cages were stocked individually with Non gravid female and Male crabs with a mean weight of 247.00 ±0.7g and 246.78±1.09g in cage 1 and cage 2 respectively. The crabs in cage 1 were fed with chopped trash fishes and the other crabs in cage 2 were fed with clam meat at 10% of their body weight twice daily. This trial was done for a period of 40 days. The survival rate of the crabs in both the cages were observed to be 83.3 % and 91.6 % respectively. The mean weight gain in cage 1 & 2 was 336.47± 2.29 and 391.05 ±1.41. The present study reveals that mud crab fattening in lined pond using clam meat has shown better growth and survival compared to the crabs fed with chopped trash fish.