Effect of dietary selenomethionine on growth performance, tissue burden, and histopathology in green and white sturgeon

•Ecologically relevant doses of dietary selenomethionine (SeMet) were studied.•Green sturgeon was more susceptible to SeMet toxicity than white sturgeon.•White sturgeon is a poor surrogate model for green sturgeon dietary SeMet toxicity. A comparative examination of potential differences in selenium...

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Bibliographic Details
Published in:Aquatic toxicology 2014-03, Vol.148, p.65-73
Main Authors: De Riu, Nicola, Lee, Jang-Won, Huang, Susie S.Y., Moniello, Giuseppe, Hung, Silas S.O.
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Animal, plant and microbial ecology
Animals
Applied ecology
Biological and medical sciences
Body Composition - drug effects
Diet
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on vertebrates
Fishes
Fundamental and applied biological sciences. Psychology
Green and white sturgeon
Growth and Development - drug effects
Growth performance
Histopathology
Kidney - chemistry
Kidney - drug effects
Liver - chemistry
Liver - drug effects
Mortality
Selenium - analysis
Selenium toxicity
Selenomethionine
Selenomethionine - analysis
Selenomethionine - metabolism
Selenomethionine - toxicity
Tissue burden
Tissue Distribution
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - metabolism
Water Pollutants, Chemical - toxicity
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Summary:•Ecologically relevant doses of dietary selenomethionine (SeMet) were studied.•Green sturgeon was more susceptible to SeMet toxicity than white sturgeon.•White sturgeon is a poor surrogate model for green sturgeon dietary SeMet toxicity. A comparative examination of potential differences in selenium (Se) sensitivity was conducted on two sturgeon species indigenous to the San Francisco Bay-Delta. Juvenile green (Acipenser medirostris), recently given a federally threatened status, and white sturgeon (Acipenser transmontanus) were exposed to one of four nominal concentrations of dietary l-selenomethionine (SeMet) (0 (control), 50, 100, or 200mgSeMet/kg diet) for 8 weeks. Mortality, growth performance, whole body composition, histopathology, and Se burdens of the whole body, liver, kidneys, gills, heart, and white muscle were determined every 2 to 4 weeks. Significant (p
ISSN:0166-445X
1879-1514
DOI:10.1016/j.aquatox.2013.12.030