Optimum feed formulation for Atlantic halibut ( Hippoglossus hippoglossus L.): Minimum protein content in diet for maximum growth

The protein requirements of Atlantic halibut ( Hippoglossus hippoglossus L) were tested in two trials for fish with initial size of 564 g and 973 g. The fish were fed near isocaloric diets with crude protein in dry matter (CP) between 35% and 53%. There was no significant effect of CP on weight deve...

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Bibliographic Details
Published in:Aquaculture 2009-06, Vol.291 (3), p.188-191
Main Authors: Árnason, Jón, Imsland, Albert K., Gústavsson, Arnþór, Gunnarsson, Snorri, Arnarson, Ingólfur, Reynisson, Hlynur, Jónsson, Arnar F., Smáradóttir, Heiðdís, Thorarensen, Helgi
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal aquaculture
animal growth
Animal productions
Animal, plant and microbial ecology
Aquaculture
Biochemistry
Biological and medical sciences
body composition
Diet
dietary protein
Diets
farmed fish
feed composition
feed conversion
feed formulation
feed intake
Fish
fish culture
fish farms
fish feeding
Fundamental and applied biological sciences. Psychology
General aspects
Growth
halibut
hepatosomatic index
Hippoglossus hippoglossus
lipid content
Marine
Physical growth
protein content
protein efficiency ratio
Protein requirements
Proteins
Sea water ecosystems
Slaughter traits
specific growth rate
Synecology
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Summary:The protein requirements of Atlantic halibut ( Hippoglossus hippoglossus L) were tested in two trials for fish with initial size of 564 g and 973 g. The fish were fed near isocaloric diets with crude protein in dry matter (CP) between 35% and 53%. There was no significant effect of CP on weight development or SGR, daily feed intake or protein efficiency ratio in either trial. However, CP significantly affected the feed conversion (FCR) of the smaller fish with FCR increasing at lower CP. The CP did not affect the final protein or lipid content of the fish. The results of the study suggest that the minimum CP for maximum growth is 41% and 35% for 560 g and 970 g halibut respectively.
ISSN:0044-8486
1873-5622
DOI:10.1016/j.aquaculture.2009.03.025