Ontogenetic Development of Digestive Enzymes in Orange-Spotted Grouper (Epinephelus coioides, Hamilton, 1822) Larvae
文献类型: 外文期刊
作者: Guo, Huayang 1 ; Li, Jianzhu 1 ; Ma, Zhenhua 1 ; Zhang, Jiasong 1 ; Zhen, Panlong 1 ; Cheng, Dachuan 1 ;
作者机构: 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Guangdong, Peoples R China
2.Minist Agr, Key Lab South China Sea Fishery Resources Explora, Guangzhou 510300, Guangdong, Peoples R China
关键词: ontogenetic development;digestive enzyme;enzymatic assay;larvae;Epinephelus coioides
期刊名称:ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH ( 影响因子:0.287; 五年影响因子:0.593 )
ISSN: 0792-156X
年卷期: 2016 年 68 卷
页码:
收录情况: SCI
摘要: The digestive physiology of orange-spotted grouper (Epinephelus coioides) was studied by assessing the specific and total activities of alkaline phosphatase, amylase, lipase, chymotrypsin, and trypsin, from hatching to 34 days post-hatching (DPH). From the onset of exogenous feeding, total alkaline phosphatase, amylase, lipase, and chymotrypsin activity fluctuated then sharply increased from 18 to 34 DPH. In contrast to other enzymes, the specific and total activity of trypsin remained at a low level from 1-26 DPH, and reached the maximum on 30 DPH. Digestive enzymes activity indicated that orange-spotted grouper were able to digest proteins, lipids, and carbohydrates at an early developmental stage. Results from the present study will improve understanding of the ontogeny of orange-spotted grouper during the larval stage, and provide a guide to hatchery feeding of this economically important fish.
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