Dietary creatine and guanidinoacetic acid supplementation have limited effects on hybrid striped bass

The effects of dietary supplementation of creatine and guanidinoacetic acid (GDA) have been studied to a limited extent in various fish species including red drum ( Sciaenops ocellatus ) and hybrid striped bass (HBS) ( Morone saxatilis x M. chrysops ). However, in HSB, there is a need to better unde...

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Bibliographic Details
Published in:Fish physiology and biochemistry 2023-06, Vol.49 (3), p.399-407
Main Authors: Janes, Douglas, Suehs, Blaine, Gatlin, Delbert M.
Format: Article
Language:English
Subjects:
Animal Anatomy
Animal Biochemistry
Animal Physiology
Animals
Bass
Biomedical and Life Sciences
Body composition
Body weight gain
Catalysts
Chemical synthesis
Creatine
Creatine - metabolism
Creatine - pharmacology
Diadromous fishes
Diet
Diet - veterinary
Dietary Supplements
Dry weight
Euryhalinity
Feed conversion
Feed conversion efficiency
Feed efficiency
Feeding experiments
Feeding trials
Fish
Freshwater & Marine Ecology
Histology
Juveniles
Life Sciences
Lipids
Morphology
Saline water
Salinity
Salinity effects
Survival
Tissues
Whitefish
Zoology
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Summary:The effects of dietary supplementation of creatine and guanidinoacetic acid (GDA) have been studied to a limited extent in various fish species including red drum ( Sciaenops ocellatus ) and hybrid striped bass (HBS) ( Morone saxatilis x M. chrysops ). However, in HSB, there is a need to better understand the impact of creatine and GDA supplementation at elevated salinity which may be encountered by this euryhaline fish. Therefore, two separate feeding trials were conducted at a salinity ranging from 15 to 20 g/L with juvenile HSB for 9 and 8 weeks to evaluate the effects of dietary creatine and GDA. In each trial, four diets were formulated with either singular additions of creatine at 2% of dry weight, GDA at 1% of dry weight, or a combination of both. Fish grew adequately in both feeding trials but no significant ( P  > 0.05) effects of supplemental creatine or GDA were observed on weight gain, feed efficiency, survival, hepatosomatic index (HSI), intraperitoneal fat (IPF ratio), or protein conversion efficiency (PCE). However, fish fed diets supplemented with creatine had significantly ( P  
ISSN:0920-1742
1573-5168
DOI:10.1007/s10695-023-01196-3