Research Article

Influence of Moult Cycles on Digestive Enzyme Activities during Early Larval Stages of Panulirus ornatus

Table 1

Total (mU larva−1) activities of digestive enzymes in early larval stages (stages I–III) of Panulirus ornatus during the pre- and post-moult phases of the moult cycle. Activities presented as mean ± standard deviation; common superscripts denote means which are not statistically different (P ≥ 0.05) for a given enzyme based on Tukey’s range test.

Total activitiesStage IStage IIStage III
Pre-moultPost-moultPre-moultPost-moult
5 days post-hatch7 days post-hatch11 days post-hatch13 days post-hatch

α-Amylase2476.7 ± 703.8a1255.1 ± 238.3b3492.0 ± 447.9a1144.9 ± 455.8b
Non-specific esterase197.1 ± 10.1a104.2 ± 9.2b339.7 ± 31.3c195.5 ± 17.5a
Trypsin-like protease138.5 ± 39.2a39.3 ± 15.6bc82.6 ± 15.7b32.2 ± 14.1c

Activities as U larva−1.