Comparison of Different Rearing Methods on Growth and Survival Rate of Serrated Mud Crabs
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Abstract
This research aimed to study the growth rate of Serrated Mud Crabs from four different cultures with three replications as follows: 1) Raft culture in earthen ponds, 2) Culture in cement tanks, 3) Recirculating aquaculture system and 4) Recirculating aquaculture system with seaweed (Gracilaria fisheri). The Serrated Mud Crabs had an average initial length of 4.11±0.68 centimeters and an average initial weight of 41±14.24 grams. Each experiments contained 45 crabs and cultured for 60 days. According to the research results, the Serrated Mud Crabs cultured in cement tanks, recirculating aquaculture system and recirculating aquaculture system with seaweed (Gracilaria fisheri) have no significant differences (p>0.05) in weight and length gain, feed conversion ratio (FCR), and daily growth rate per individual (ADG), while Serrated Mud Crabs cultured in recirculating aquaculture system had the highest survival rate (p<0.05). The result also showed that the total weight of Serrated Mud Crabs cultured in recirculating aquaculture system had increased the most but have no significant differences from Serrated Mud Crabs cultured in recirculating aquaculture system with seaweed (Gracilaria fisheri) indicating that culturing Serrated Mud Crabs cultured in recirculating aquaculture system can compensate traditional cultures.
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