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Localisation of enzymes in the digestive system during early development of the grouper (Epinephelus coioides)

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日付
2004
著者
Quinitio, Gerald F.
Sa-an, Analyn C.
Toledo, Joebert D.
Tan-Fermin, Josefa D.
Page views
5,189
ASFA keyword
digestion ASFA
digestive system ASFA
enzymatic activity ASFA
fish physiology ASFA
fish larvae ASFA
larval stage ASFA
phosphatase ASFA
AGROVOC keyword
Epinephelus coioides AGROVOC
groupers AGROVOC
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This study was undertaken to investigate the occurrence of some digestive enzymes in the gastrointestinal tract during early development in the grouper. This work was conducted to provide information on formulating an appropriate feeding scheme and an artificial diet for the early development of the grouper, Epinephelus coioides. Larvae of E. coioides were reared in 5 tonne rectangular concrete tanks. The digestive enzymes localized were acid phosphatase (ACP), alkaline phosphatase (ALP), nonspecific esterase (NSE), aminopeptidase (AMP), trypsin (TRP), maltase (MAL) and lipase (LIP). Weak enzyme activity occurred during the yolk sac stage. High AMP activity started at day 14 prior to Artemia feeding at day 16. Fluctuations in TRP activity might be related to stomach formation. Occurrence of MAL during early development demonstrated a capacity to digest carbohydrates. An increase in LIP activity coincided with the occurrence of gastric glands. Insignificant changes in digestive enzymes were observed in the metamorphosing grouper larvae from day 40 to 60.
URI
http://hdl.handle.net/10862/2408
Suggested Citation
Quinitio, G. F., Sa-an, A. C., Toledo, J. D., & Tan-Fermin, J. D. (2004). Localisation of enzymes in the digestive system during early development of the grouper (Epinephelus coioides). In M. A. Rimmer, S. McBride, & K. C. Williams (Eds.), Advances in grouper aquaculture (pp. 30–34). Canberra: Australian Centre for International Agricultural Research.
Type
Book chapter
ISBN
9781863204385
シリーズ
ACIAR Monograph 110
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  • Books and Book Chapters [109]

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