Informasi Detil Paper |
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| Judul: | Development of Digestive Enzyme Activity Based on Artificial Diet of Feeding Time on Swimming Crab Larva (Portunus pelagicus) |
| Penulis: | Wellem H. Muskita, M. Agus Suprayudi, Dedi Jusadi, Agus Kurnia & Oce Astuti || email: info@mail.unpatti.ac.id |
| Jurnal: | Prosiding PERMAMA 2012 Vol. 1 no. 1 - hal. 161-172 Tahun 2012 [ Prosiding ] |
| Keywords: | Larva rearing, Portunus pelagicus, commercial feed, survival |
| Abstract: | One of the main problems on larvae rearing is the low survival rate when larva was being fed by artificial diet at the early larval stage. This study was conducted to examine Development of digestive enzyme activities based on feeding time of artificial diet on swimming crabs (. Five different initial feeding time were examined (i.e. A. First feeding natural food at Zoea (Z) 1; B. commercial feed at Z1; C. Z1 natural food, commercial feed at Z2; D. Z1- Z2 natural food, commercial feed at Z3 and E. Z1 - Z3 natural food, commercial feed at Z4). The parameters observed were the survival rate and enzyme activities. Results of this experiment showed that larva that was being fed by commercial diet at the Z1, Z2, Z3 failed to develop to first crab (FC) stage. On the other hand, the one that was being fed by commercial diet at the Z4 stage could develop to FC stage. The enzyme activity of protease was high in Z1 larvae and tended to decrease during larva development. Whereas the enzyme activities of amylase and lipase were lower in Z1, and tend to increase during larva development. From this research it was concluded that the first feeding time of commercial feed to larva affect the survival rate of FC, and the precise time for feeding the larvae with commercial feed was at stage Zoea 4. |
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