Aquacultura Indonesiana (2010), 11 (3) : 177-184

Digestive System Development of the Humpback Grouper, Cromileptes altivelis, Fish Larvae

Usman Bulanin1, C.R. Saad2, M.S. Ridwan Affandi3 and Agung Sudaryono4

1) Department of Aquaculture, Faculty of Fisheries and Marine Science,
Bung Hatta University, Indonesia,
2) Department of Agro technology, Faculty of Agriculture, UPM, Malaysia
3) Department Aquatic Resources Management, Faculty of Fisheries and Marine Science, Bogor Agriculture University, Indonesia.
4) Department of Aquaculture, Faculty of Fisheries and Marine Science, Undip, Semarang.

Abstract

Usman Bulanin, C.R. Saad, M.S. Ridwan Affandi and Agung Sudaryono. 2010. Digestive System Development of the Humpback Grouper, Cromileptes altivelis, Fish Larvae. Aquacultura Indonesiana, 11 (3): 177a��184. The digestive system of humpback grouper, Cromileptes altivelis, was studied from day 5 till day 45 of larval live. The major events in digestive system differentiation occurred during larval stage. Histologically, no fold occurred in the larvae digestive tract yet before they reach 5 days old. While, their intestine shown in three portions: anterior, middle and posterior. During metamorphosis an elongation of the digestive tract and increase in the absorption surface were observed. The incipient stomach began to be visible at day 30. The larvae stomachs were perfected at 45 DAH. The liver began to be visible at day 5, while the pancreas was visible at day 10.

Keywords: Growth; Probiotic; Survival rate; Tiger shrimp (Penaeus monodon); Water quality

 

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