PERKEMBANGAN AKTIVITAS ENZIM PENCERNAAN LARVA RAJUNGAN Portunus pelagicus

Abstract

Seed production continuity of Portunus pelagicus larvae had been conducted but the results were still un-consistent Digestive activity was known to be associated with the type of feed consumed by larvae. Amylase, lipase, and trypsin enzymes were used as a biological indicators to measure the digestion of feed. The aim of this study was to describe the activity of digestive enzymes in blue swimming crab larvae. Digestive enzyme activity data obtained was presented in graphical form and analyzed descriptively. Based on the results of the study, the enzyme activity of amylase, lipase and trypsin was detected at the 1st day. The pattern of amylase enzyme activity showed an increased from the larvae of 1st day until the 17th day then decreased until the end of the study. The activity of trypsin enzyme was high on 1st day, but decreased on the 3rd and 5th days, and increased again on the 7th day until the last day of the study. The highest activity of amylase and trypsin during this time period occurred in the 11th day. Lipase enzyme activity tended to be stable from the beginning to the end of the study. In cultivation applications, artificial feeding with carbohydrate, protein and high fat content should be performed when the larvae are 11th days.