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Brain lesions in mallard ducklings from parents fed methylmercury

Avian Diseases

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Abstract

Methylmercury dicyandiamide was fed to mallard ducks at 3 ppm mercury. Mercury accumulated in the eggs to an average of 7.18 and 5.46 ppm on a wet-weight basis in 2 successive years. Mercury in the eggs is believed to have caused brain lesions in the hatched ducklings. Lesions included demyelination, neuron shrink-age, necrosis, and hemorrhage in the meninges overlying the cerebellum. Brains of dead ducklings contained an average of 6.17 and 5.19 ppm mercury on a wet-weight basis in 2 successive years.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Brain lesions in mallard ducklings from parents fed methylmercury
Series title:
Avian Diseases
Volume
20
Issue:
1
Year Published:
1976
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
9-17
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Avian Diseases
First page:
9
Last page:
17
Number of Pages:
9