ANALYSIS OF FILTRATION RATE WITH DIFFERENT TYPES OF FEED ON THE SURVIVAL OF OYSTER PEARL (Pinctada maxima)

Abstract

The purpose of study was to determine the filtration rate of oyster pearl with different types of feed, in order to determine the type of feed preferences of pearl oyster spat. The research was conducted at PT. Autore Pearl Culture, Pemenang, District, North Lombok Regency, NTB on April 25 to May 25 2017. The experiment used three different type of feed i.e. Isochrysis galbana, Pavlova Lutheri, Chaetoceros sp., with density of 270,000 cells / ml. Experimental was arranged in Completely Randomized Design. Jars volume 5000 ml were used as experimental unit.  Spat reared for 30 days. Measured parameter were clearance rate, filtration rate, feeding activity, feed consumption level and survival rate. Data were analyzed using analysis of variance (ANOVA). The results showed that filtration rate with different type of feed affected (p<0,05) survival rate of spat. Chaetoceros sp resulted the highest average of survival rate of 76.67% ±19.66, compare to Isochrysis galbana and Pavlova lutheri.