Crab / Mud crab (Scylla serrata) culture technique Or Mud Crab Scylla serrata fattening in bamboo cage : Part 02

Crab / Mud crab (Scylla serrata) culture technique Or Mud Crab Scylla serrata fattening in bamboo cage : Part 02

Growth and mortality rate :

Growth rate (0.92 to 1.64 g/indiv./day for male and 0.61 to 1.06 g/indiv./day for female) and mortality rate (3-6% for both male and female crab) were observed in cages. Growth rate of male crabs was found higher than the female crabs in cages.

Crab / Mud crab (Scylla serrata) culture technique Or Mud Crab Scylla serrata fattening in bamboo cage : Part 01

Crab / Mud crab (Scylla serrata) culture technique Or Mud Crab Scylla serrata fattening in bamboo cage : Part 01

Introduction :

Mud crab Scylla serrata (locally called “Jati or Haba Kakra”) is widely distributed in the Bangladesh and one of the most famous culture species, which has great economic value. We can culture it in earthen pond, pen and even in cages. Mud crab fattening in cage is required and to be useful for high growth and low mortality. Unfortunately, crab fattening in cage is not widely practiced in Bangladesh because of lack of proper knowledge and publicity. There are 640 sps of crabs available in various aquatic environments; out of these crabs of Scylla sps are larger in size, fetches high price nd suitable for culture practices. The Scylla species popularly are known as the Mangrove crabs, the Mud crabs, the Green crabs and the Brown crabs. Crabs can be cultured in earthen dug out ponds, tanks and cages. There are two types of culture methods 1.Culture 2.Fattening. In culture method crab lets either brought from hatcheries or wild are stocked in and grown for 6-9 months. In fattening method grown up, 50-100 gm sized crabs are brought from wild and fattened in ponds, for 3-4 months. Here I will discuss overall technique of crab culture-