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Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Dietary modulation of digestive enzymes by the administration of feed additives to rainbow trout, Oncorhynchus mykiss Walbaum
Author(s): Nya, Elijah Jacob
Austin, Brian
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Keywords: digestive enzymes
feed supplements
rainbow trout Oncorhynchus mykiss
Issue Date: Apr-2011
Date Deposited: 8-Aug-2012
Citation: Nya EJ & Austin B (2011) Dietary modulation of digestive enzymes by the administration of feed additives to rainbow trout, Oncorhynchus mykiss Walbaum. Aquaculture Nutrition, 17 (2), pp. e459-e466.
Abstract: The aim of this study was to assess the metabolic and digestive enzyme activities in rainbow trout, Oncorhynchus mykiss Walbaum fed dietary supplements. The biometric indices and the following enzymes activities were measured: acid protease and pepsin from the stomach homogenates, alkaline phosphatase (AP) from the small intestine and the brush border membrane, total proteolytic enzymes and trypsin from the small intestine and liver/pancreas. Dietary garlic induced a higher pepsin activity in the stomach than lipopolysaccharide (LPS) and ginger. Conversely, dietary ginger and LPS showed a significant difference (P less than 0.05) in acid protease activity compared to the controls. There was not any significant difference observed between treated groups and the controls for hepato-pancreas proteolytic enzyme activity, except for trypsin. AP activity increased significantly with dietary garlic, ginger and LPS compared to the controls.
DOI Link: 10.1111/j.1365-2095.2010.00782.x
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