Rune Dietz

Exposure to Persistent Organic Pollutants Reduces Testosterone Concentrations and Affects Sperm Viability and Morphology during the Mating Peak Period in a Controlled Experiment on Farmed Arctic Foxes (Vulpes lagopus)

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DOI

  • Christian Sonne
  • Peter A. Torjesen, University of Oslo
  • ,
  • Eva Fuglei, Norwegian Inst Nat Res, Fram Ctr, Dept Arctic Ecol
  • ,
  • Derek C. G. Muir, Environm & Climate Change Canada
  • ,
  • Bjorn Munro Jenssen
  • ,
  • Even H. Jorgensen, Tromso Univ Museum, UiT The Arctic University of Tromso
  • ,
  • Rune Dietz
  • Oystein Ahlstrom, Norwegian University of Life Sciences

We investigated testosterone production and semen parameters in farmed Arctic foxes by dietary exposure to persistent organic pollutants (POPs) for 22 months. Eight male foxes were given a diet of POP-contaminated minke whale blubber, whereas their eight male siblings were fed a control diet containing pig fat as the main fat source. The minke whale based feed contained a Sigma POPs concentration of 802 ng/g ww, whereas the pig based feed contained Sigma POPs of 24 ng/g ww. At the end of the experiment, Sigma POP concentrations in adipose tissue were 8856 +/- 2535 ng/g ww in the exposed foxes and 1264 539 ng/g ww in the control foxes. The exposed group had 45-64% significantly lower testosterone concentrations during their peak mating season compared to the controls (p

OriginalsprogEngelsk
TidsskriftEnvironmental Science & Technology (Washington)
Vol/bind51
Nummer8
Sider (fra-til)4673-4680
Antal sider8
ISSN0013-936X
DOI
StatusUdgivet - 18 apr. 2017

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