Agricultural and Biosystems Engineering Publications
Campus Units
Agricultural and Biosystems Engineering
Document Type
Article
Publication Version
Published Version
Publication Date
4-2012
Journal or Book Title
Open Journal of Animal Sciences
Volume
2
Issue
2
First Page
69
Last Page
77
DOI
10.4236/ojas.2012.22011
Abstract
Distillers dried grain with solubles (DDGS) was evaluated in juvenile Shasta-strain rainbow trout Oncorhynchus mykiss diets during a 36-day feeding trial. Two experimental diets containing either 10% or 20% DDGS with supplemented amino acids (lysine, methionine, isoleucine, and his-tidine) and phytase were compared to a fish meal-only control diet. Tanks of trout receiving diets containing either concentration of DDGS weighed significantly less at the end of the trial and had significantly poorer feed conversion ratios than tanks of fish being fed the fish meal- only control. There was no significant difference in individual fish length, weight, condition factor, or any fish health measurements among diet treatments. Both the hepatosomatic index and viscerosomatic index were significantly less in the fish fed 10% DDGS than those fed the control diet. Body fat was significantly greater in the fish receiving 20% DDGS compared to fish fed either of the other two diets. Fillet composition, as determined by crude protein, crude lipid, ash, and water, was not significantly different among fish reared on any of the diets. There was also no significant difference in estimated protein digestibility coefficients among fish receiving any of the diets. The results suggest that DDGS, even if supplemented with essential amino acids and phytase, will lead to decreased juvenile rainbow trout growth at dietary concentrations of at 10% or greater.
Access
Open
Copyright Owner
Scientific Research Publishing, Inc.
Copyright Date
2012
Language
en
File Format
application/pdf
Recommended Citation
Barnes, Michael E.; Brown, Michael L.; and Rosentrater, Kurt A., "Juvenile rainbow trout responses to diets containing distillers dried grain with solubles, phytase, and amino acid supplements" (2012). Agricultural and Biosystems Engineering Publications. 83.
https://lib.dr.iastate.edu/abe_eng_pubs/83
Included in
Agriculture Commons, Aquaculture and Fisheries Commons, Bioresource and Agricultural Engineering Commons
Comments
This article is from Open Journal of Animal Sciences 2, no. 2 (April 2012): 69–77, DOI: 10.4236/ojas.2012.22011.