Noor, Noorashikin Md., Das, Simon Kumar, Cob, Zaidi Che, and Ghaffar, Mazlan Abd. (2018) Effects of salinity on gastric emptying time in hybrid grouper, Epinephelus fuscoguttatus x E. lanceolattus juveniles. In: AIP Conference Proceedings (1940) 020052. From: University Kebangsaan Malaysia, Faculty of Science and Technology 2017 Postgraduate Colloquium, 12-13 July 2017, Selangor, Malaysia.

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Abstract

The newly developed hybrid grouper: tiger grouper (Epinephelus fuscoguttatus) × giant grouper (Epinephelus fuscoguttatus) (TG×GG), has a high resistance towards different environmental condition (eg. in euryhaline environment) due to its genetic improvement. This study aims to investigate the effects of different salinities (10, 15, 20, 25 and 30 ppt) on the gastric emptying time (GET) of the TG×GG hybrid grouper juveniles. The fish were fed with commercial pellet over a 30 days experimental period under controlled laboratory conditions. The GET was determined by X-radiographic method, using barium sulfate (BaSO 4) as an inert food marker. The X- radiography images showed that the shortest GET (12 h) was observed in the 15 ppt group, whereas the longest GET (18 h) in 30 ppt group. The results suggests to culture TG×GG hybrid grouper juveniles in 15 ppt with commercial pellet diet as this salinity proliferates faster digestion process which may contribute faster growth rate of this important fish species. Overall, these findings would be useful for the betterment of TG×GG hybrid grouper aquaculture which will eventually boost up the production of this newly developed hybrid grouper species.

Item ID:	85579
Item Type:	Conference Item (Scholarly Work)
ISSN:	15517616
Related URLs:	http://www.scopus.com/inward/record.url?...
Date Deposited:	02 Jun 2025 23:06
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