The Efficacy of Dietary Yeast Mannan Oligo Saccharide on Growth and Survival Rate in Amphiprion ocellaris Fingerlings
Vellaichamy Ramanadevi, Kaliyan Muthazhagan, Thangappan Ajithkumar, Muthusamy Thangaraj
This study was done in order to evaluate the efficacy of dietary prebiotic yeast (Saccharomyces cerevisiae) cell wall mannan oligo saccharide (MOS) on growth indices and survival of the clownfish, Amphiprion ocellarisfingerlings. Totally 240 captive bred fingerlings weighted 17 ± 0.03 mg (± SD) were reared for 90 days fed by four different diets including 0, 0.5, 1 and 1.5% MOS enriched nauplii. The trial was carried out in twelve 100L FRP tank with density of 20 fish in each tank, in the form of 4 treatments with 3 replicates were randomly distributed. At the end of trial, growth indices and survival rate were determined. Growth indices such as final weight, length and specific growth rate in all treatments showed no statistical significant differences in compared with the control (P>0.05). Condition factor in treatment 2 showed significantly higher than control. Survival rate in all treatments was significantly higher than the control group. The experiment indicated that MOS didn’t influence on growth indices and it improves the survival rate of A. ocellaris fingerlings.