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Apparent absorption efficiencies of amino acids in rainbow trout, Oncorhynchus mykiss (Walbaum), fed diets containing bacterial single-cell protein

Citation

Perera, WMK and Carter, CG and Houlihan, DF, Apparent absorption efficiencies of amino acids in rainbow trout, Oncorhynchus mykiss (Walbaum), fed diets containing bacterial single-cell protein, Aquaculture Nutrition, 1, (2) pp. 95-103. ISSN 1353-5773 (1995) [Refereed Article]

DOI: doi:10.1111/j.1365-2095.1995.tb00024.x

Abstract

The aim of the present study was to compare the apparent absorption efficiency of individual indispensable and dispensable amino acids in diets containing varying proportions of bacterial single cell protein (BSCP) and fishmeal when fed to rainbow trout, Oncorhynchus mykiss (Walbaum). Four diets were formulated to contain a total of 45.8% crude protein, of which 0% was from BSCP in diet 1 (BSCP‐0), 25% in diet 2 (BSCP‐25), 62.5% in diet 3 (BSCP‐62.5) and 100% in diet 4 (BSCP‐100); the remainder of the protein was from fishmeal. The four diets were isonitrogenous and had similar amino acid compositions. Duplicate groups of 25 fish were fed one of the four experimental diets at the rate of 20 g kg−1 body weight per day for 132 days. Apparent absorption efficiency was measured over a 45‐day period during the growth trial. Results from two methods of faeces collection and two indicators of absorption efficiency were compared. The amino acid absorption efficiency of BSCP‐100 was significantly lower (P < 0.05) when compared to the other three diets and absorption of some of indispensable amino acids was below the requirement level. The variation seen in individual amino acids absorption efficiencies between diets suggests that this parameter may be important in fish nutritional investigations. Copyright © 1995, Wiley Blackwell. All rights reserved

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Animal Production
Research Field:Animal Nutrition
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Environmental Sciences
Author:Carter, CG (Professor Chris Carter)
ID Code:5613
Year Published:1995
Web of Science® Times Cited:10
Deposited By:TAFI - Aquaculture
Deposited On:1995-08-01
Last Modified:2011-09-09
Downloads:0

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