In the present study, we meant to detect an optimal set of stocking density and rearing time in using abovementioned overwintering cultivation system. The crab density should be is about 1 crab/1 square meter area. Table 1. All treatments replicated three times. Economic evaluation of mud crab farming under different production systems in India. The preferred stocking density is about 1 to 3 crabs per sq. The effect of stocking density on the mating success of S. olivacea was separately investigated as well by stocking 2, 6 or 10 pairs of crabs in each tank (n = 36). As a result, there are huge possibilities of earning foreign currencies by exporting crabs. Stocking the mud crabs. mud crab in ponds has become popular in the country. A stocking density of 100–150 zoea 1 (Z1) L −1, combined with rotifer of 30–45 mL −1 for early stages and Artemia feeding at 10–15 nauplii mL −1 for Z3–Z5 seemed to produce the best performance of S. paramamosain larvae. If you stock the crabs directly into the pond, then the stocking density will be 1 crab per square meter. If you stock the crabs directly into the pond, then the stocking density will be 1 crab per square meter. This study was conducted to determine the economic feasibility of the pond culture of mud crab at various stocking densi­ ties. But if you stock in cages, then stock 1 crab per cage. 686 Views. A stocking rate of around 0.5–1.5 per square metre may give the highest productivity and economic benefit in simple earthen ponds. D.D. Keeping male and female crabs separated from each other will make … Stocking in Mud Crab Fattening. Usually, soft-shelled mud crabs with a size of 8 cm carapace width and above or mud crabs with more than 500 grams should be stocked. Therefore, the stocking density of 75 ind./L is optimum for mud crab S. tranquebarica larvae and recommended to be applied for commercial larvae production in hatchery. Gerochi The mud crab, Scylla serrata (Forskal), was grown in monoculture at different stocking densities: 5,000, 10,000, 15,000 and 20,000 individuals/ha for 90 days. You can also stock them at 1 crab /1 to 3 sq.meter. ... of mud crab at a stocking density ... from stocking density of 0.5 m−2 (P<0.05). ABSTRACT This study aimed to determine optimum stocking density of mud crab Scylla serrata through the applied of different stocking density in every treatment in recirculation system. Mud crab has huge demand and price in international market. Collect the crabs in morning. Many farmers find it difficult to reduce the high degree of cannibalism in the nursery phase of mud crab (Scylla serrata) culture. Characteristics of Mud Crab Farming in Earthen Ponds. Growing mud crabs Growout of juvenile mud crabs is a common practice overseas, but in Australia it has not yet progressed beyond pilot-scale operations. A 4L x 4W x 2.5H m pen buried not less than 0.5 m into the soil can accommodate up to 80 crabs, depending on the species (lower stocking density for S. serrata due to its large size). Divide the pond into different compartments according to the size of crabs if it is big sized. Feeding the mud crabs with good quality feeds is the most important part of the mud crab fattening program. per m 2 (P < 0.05), and net crab yield was the highest at the 15 treatment (P < 0.05), reached 42.1 ±0.84 kg per m 2. Intensive nursery systems are designed to culture mud crab postlarvae through a critical phase in preparation for stocking into growout systems. Experimental design used was complete randomized design (CRD) with three density treatments which were 5 (P1), 10 (P2), and 15 ind/container (P3). Stocking density of mud crab was maintained at the rate 10,000 nos ha −1 in all the treatments, while that of fishes were maintained at the rate 10,000–40,000 nos ha −1 , depending upon the stocking size and growth potential.