Effect of Different Level of Protein on Growth Indices and Body Biochemical Composition of Sea Cucumber(Holothuria scabra) in Juvenile Stage

Inroduction & The sea cucumber (Holothuria scabra) has several immense characters such as: it can tolarate wide range of temperature, salinity and DO in aquaculture. In addition to , it has several commercial importance in food industry, pharmaceutial as it can cure many diseases. The aim of this study was to determine the optimum level of protein on growth performance and body biochemical composition of juvenile Holothuria Scabra in order to introduce stronger scabra for enhancing stock in releasing them into the sea and also for farming in aquaculture.
After transferring juvenile sea cucumber to 5000 liter tank in experimental location, they were fed with shrimp starter food for environment adaption.The physico – chemical parameters such as temperature, salinity, Do and PH were recorded twice daily (morning and afternoon).Four practical diets containing 10, 15, 20 and 25 percent protein in triplicate was designed .One hundred and forty-four yong scabra with initial average weight of 6±0.48 g were randomly distributed between 12 tanks of 300 l. They were fed daily three times (7 a.m,12,6 p.m) at satiation.
The results obtained indicated that with increasing protein level up to 25% level,BWI, FER, PER and survival rate were improwed and was showed significant with other treatments (P The study showed that the diet containing 25% protein level is suitable for growth and survival of sea cucumber.