Inhibition of Mallard salt Gland Function by DDE and Organophosphates

  • M. Friend
  • J. H. AbelJr


The effects of selected environmental pollutants on avian salt gland function were studied in the mallard duck, Anas pZatyrhynchos. DDE and several organophosphates were found to have an inhibitory effect on the ability of these glands to concentrate and secrete salt from the body. DDE significantly reduced secretion rates from the salt glands. More severe effects were observed following exposure to organophosphate insecticides; reduction in gland size, reduced ability of the birds to secrete Na+ via the salt glands, and reductions in cholinesterase activities in the salt gland and hypothalamus all contributed to elevated mortality levels in treatment birds over controls.


Hypertonic Saline Salt Gland Organophosphate Insecticide Mallard Duck Intraperitoneal Inoculation 
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Die Wirkung von ausgewählten Umwelt schmutzteile wurden untersucht, an der Salzdrüse von der Stockente, Anas pZatyrhynchos. Es wurde festgestellt, das DDE und einige andere Mischungen die Dräse hindern, Salz vom körper zu sondern. DDE erniedrigte die Absonderungen von der Drüse bedeutendlich. Eine größere Wirkung wulde festgestellt bei der Entblößung der Drüse zu den anderen Mischungen. Reduzierung der Dräsen giäße, beschränkte Fähigkeit der Drüse zur ausscheidung von Na+, eine Verminderung der Tätigkeit des Nervensytems der Drüse und des Gehirns, waren sicher die massgebende Beweise der Erhähten Sterblichkeitsziffer der Behandelten Enten, gegenüber der nicht Behandelten Vögel.


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Copyright information

© Springer Science+Business Media New York 1976

Authors and Affiliations

  • M. Friend
    • 1
  • J. H. AbelJr
    • 2
    • 3
  1. 1.Natl.Fish & Wildlife Health Lab.Dept. Vet.Sci. Univ. WisconsinMadisonUSA
  2. 2.Denver Wildlife Res.Ctr.U.S. Fish & Wildlife Sv.DenverUSA
  3. 3.Dept. Physiol. & BiophysicsColorado State Univ.Ft. CollinsUSA

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