Gastric emptying and the enzymatic activity in the stomach of Amphiprion ocellaris fed on artificial diet

This study aims to elucidate the gastric emptying process of clownfish fed on artificial diet using two gastric evacuation models and to determine the pepsin activity in the digestion process in relation to feeding time. Regression analysis was used to evaluate the adequacy of 2 models; Anderson’s [...

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Main Authors:	Khoo, Mei Ling, Simon Kumar Das, Mazlan Abd. Ghaffar.
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/13047/ http://journalarticle.ukm.my/13047/ http://journalarticle.ukm.my/13047/1/01%20Mei%20Ling%20Khoo.pdf

id	ukm-13047
recordtype	eprints
spelling	ukm-130472019-06-20T15:21:26Z http://journalarticle.ukm.my/13047/ Gastric emptying and the enzymatic activity in the stomach of Amphiprion ocellaris fed on artificial diet Khoo, Mei Ling Simon Kumar Das, Mazlan Abd. Ghaffar., This study aims to elucidate the gastric emptying process of clownfish fed on artificial diet using two gastric evacuation models and to determine the pepsin activity in the digestion process in relation to feeding time. Regression analysis was used to evaluate the adequacy of 2 models; Anderson’s [St = So(1-So(α-1)ρ(1-α)t)1/(1-α) + ξ ] and Grove’s model [St = (Soα – αKt)1/α ], in describing the gastric emptying rate. Grove’s model provided a better fit with higher r2 value, with the calculated parameters of maximum meal size at time 0 (S0) = 0.195 g and gastric emptying rate (K) = 0.0165 g h-1. There was no initial delay phase as predicted and the evacuation followed a curve. Pepsin activity in the stomach showed rapid responses to food intake, where activity was detected at 1 h after feeding and reached its peak at 2 h after feeding. Pepsin activity decreased since then until the 12th h after feeding where it reached the lowest point. An increase of pepsin activity was detected later, where a small boost was detected at 24 h after feeding to digest the remaining food item in the stomach before the pepsin secretion decreased and maintained at pre-feeding level. Fast response of digestive enzyme in stomach implied that clownfish is equipped to utilize infrequent and irregular meals effectively. Penerbit Universiti Kebangsaan Malaysia 2019-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/13047/1/01%20Mei%20Ling%20Khoo.pdf Khoo, Mei Ling and Simon Kumar Das, and Mazlan Abd. Ghaffar., (2019) Gastric emptying and the enzymatic activity in the stomach of Amphiprion ocellaris fed on artificial diet. Sains Malaysiana, 48 (1). pp. 1-6. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil1_2019/KandunganJilid48Bil1_2019.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	This study aims to elucidate the gastric emptying process of clownfish fed on artificial diet using two gastric evacuation models and to determine the pepsin activity in the digestion process in relation to feeding time. Regression analysis was used to evaluate the adequacy of 2 models; Anderson’s [St = So(1-So(α-1)ρ(1-α)t)1/(1-α) + ξ ] and Grove’s model [St = (Soα – αKt)1/α ], in describing the gastric emptying rate. Grove’s model provided a better fit with higher r2 value, with the calculated parameters of maximum meal size at time 0 (S0) = 0.195 g and gastric emptying rate (K) = 0.0165 g h-1. There was no initial delay phase as predicted and the evacuation followed a curve. Pepsin activity in the stomach showed rapid responses to food intake, where activity was detected at 1 h after feeding and reached its peak at 2 h after feeding. Pepsin activity decreased since then until the 12th h after feeding where it reached the lowest point. An increase of pepsin activity was detected later, where a small boost was detected at 24 h after feeding to digest the remaining food item in the stomach before the pepsin secretion decreased and maintained at pre-feeding level. Fast response of digestive enzyme in stomach implied that clownfish is equipped to utilize infrequent and irregular meals effectively.
format	Article
author	Khoo, Mei Ling Simon Kumar Das, Mazlan Abd. Ghaffar.,
spellingShingle	Khoo, Mei Ling Simon Kumar Das, Mazlan Abd. Ghaffar., Gastric emptying and the enzymatic activity in the stomach of Amphiprion ocellaris fed on artificial diet
author_facet	Khoo, Mei Ling Simon Kumar Das, Mazlan Abd. Ghaffar.,
author_sort	Khoo, Mei Ling
title	Gastric emptying and the enzymatic activity in the stomach of Amphiprion ocellaris fed on artificial diet
title_short	Gastric emptying and the enzymatic activity in the stomach of Amphiprion ocellaris fed on artificial diet
title_full	Gastric emptying and the enzymatic activity in the stomach of Amphiprion ocellaris fed on artificial diet
title_fullStr	Gastric emptying and the enzymatic activity in the stomach of Amphiprion ocellaris fed on artificial diet
title_full_unstemmed	Gastric emptying and the enzymatic activity in the stomach of Amphiprion ocellaris fed on artificial diet
title_sort	gastric emptying and the enzymatic activity in the stomach of amphiprion ocellaris fed on artificial diet
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2019
url	http://journalarticle.ukm.my/13047/ http://journalarticle.ukm.my/13047/ http://journalarticle.ukm.my/13047/1/01%20Mei%20Ling%20Khoo.pdf
first_indexed	2023-09-18T20:03:58Z
last_indexed	2023-09-18T20:03:58Z
_version_	1777407034643185664

Gastric emptying and the enzymatic activity in the stomach of Amphiprion ocellaris fed on artificial diet

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