Growth and survival rate of Holothuria (Metriatyla) scabra with feed from chicken waste in Menia Waters, Sabu Raijua District, East Nusa Tenggara, Indonesia

Fisheries resources are common property rights, so their management has open access, which means anyone can get involved. The fishery products obtained become uncertain and overfished, therefore to overcome the problem of overfishing the Holothuria scabra (sea cucumber) resources, this study experiments on pen culture techniques development. Cultivation of H. scabra in confined imprisonment, in addition to maintaining the sustainability of its resources, is also a new employment field for coastal communities that can provide added value in improving welfare. The objectives of the study were to determine: (a) the growth, (b) the survival rate, (c) the pattern of length versus weight increase, for the H. scabra found in the Menia waters. The method used is an experimental method of cultivation (pen culture). The results obtained from this study are: increase in the length with 1.5-6.35 cm and in the weight with 4-10.07 g weekly, for 60 days (8 weeks). The growth rate of H. scabra day-1 for 30 days was between 0.15-0.93% and the average daily growth rate was 0.66±0.68%. Length relationship to weight (growth pattern) had an allometric coefficient b>3. The body proximate analysis revealed contents of 68.59% protein, 4.09% fat and 4.85% carbohydrate. The survival rate of H. scabra was 100%. Average water quality parameters showed a temperature of 29-31°C, a salinity of 30-32 ppt, a pH of 7-8 and a DO of 4-5 mg L-1, which are in the range of tolerance for H. scabra maintenance.