Development of Enzymes and In Vitro Digestibility during Metamorphosis and Molting of Blue Swimming Crab (Portunus pelagicus)
Joint Authors
Chamchuen, Phanu
Pratoomchat, Boonyarath
Engkakul, Arunee
Kovitvadhi, Uthaiwan
Rungruangsak-Torrissen, Krisna
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-10-08
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Earth Science , Water and Environment
Abstract EN
The work focuses on development of digestive enzymes (amylase, total protease, trypsin, and chymotrypsin) and activity ratio of trypsin to chymotrypsin (T/C ratio) for digestive efficiency and growth, in blue swimming crab (Portunus pelagicus) during metamorphosis and molting.
Specific activities of all enzyme parameters studied were associated with growth during metamorphosis, while only those of trypsin and T/C ratio were associated during molting cycle where trypsin and chymotrypsin specific activities associated with consumption rate with especially high levels during late intermolt and early premolt stages.
About 50% increased weight gain was observed with at least double increased T/C ratio at the end of molting period, compared to the stages prior to molting.
Growth of carapace would be more significant after finishing molting.
Carapace width gain and T/C ratio were highest at the first crab stage.
Studies of in vitro protein digestibility of different feed raw materials indicated that Artemia, Rotifer, and Moina are the best for larval stages.
Otherwise, the use of shrimp feed and Artemia flake could be the alternatives.
Incorporating of cassava meal into the feed formula for early adult stage (juvenile) could be an advantage.
The proteins from animals are more beneficial for adult crab culture than the proteins from plants and bacteria.
The digestible quality of dietary protein is very important during larval stages, while the protein level of diet is more important during adult stages with fully developed digestive enzymes.
American Psychological Association (APA)
Chamchuen, Phanu& Pratoomchat, Boonyarath& Engkakul, Arunee& Kovitvadhi, Uthaiwan& Rungruangsak-Torrissen, Krisna. 2014. Development of Enzymes and In Vitro Digestibility during Metamorphosis and Molting of Blue Swimming Crab (Portunus pelagicus). Journal of Marine Sciences،Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-1041125
Modern Language Association (MLA)
Chamchuen, Phanu…[et al.]. Development of Enzymes and In Vitro Digestibility during Metamorphosis and Molting of Blue Swimming Crab (Portunus pelagicus). Journal of Marine Sciences No. 2014 (2014), pp.1-12.
https://search.emarefa.net/detail/BIM-1041125
American Medical Association (AMA)
Chamchuen, Phanu& Pratoomchat, Boonyarath& Engkakul, Arunee& Kovitvadhi, Uthaiwan& Rungruangsak-Torrissen, Krisna. Development of Enzymes and In Vitro Digestibility during Metamorphosis and Molting of Blue Swimming Crab (Portunus pelagicus). Journal of Marine Sciences. 2014. Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-1041125
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1041125