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Brain cholinesterase activity of nestling great egrets, snowy egrets, and black-crowned night-herons

Journal of Wildlife Diseases

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Abstract

Inhibition of brain cholinesterase (ChE) activity in birds is often used to diagnose exposure or death from organophosphorus or carbmate pesticides. Brain ChE activity in the young of altricial species increase with age; however, this relationship has only been demonstrated in the European starling (Sturnus vulgaris). Brain ChE activity of nestling great egrets (Casmerodius albus) collected from a colony in Texas increased significantly with age and did not differ among individuals from different nests. Brain ChE activity of nestling snowy egrets (Egretta thula) and black-crowned night -herons (Nycticorax nycticorax) collected in one colony each from Rhode Island, Texas, and California also increased significantly with age and did not differ among individuals from different nests or colonies. This study further demonstrates that age must be considered when evaluating exposure of nestling altricial birds to ChE inhibitors.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Brain cholinesterase activity of nestling great egrets, snowy egrets, and black-crowned night-herons
Series title:
Journal of Wildlife Diseases
Volume
25
Issue:
3
Year Published:
1989
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
359-363
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Wildlife Diseases
First page:
359
Last page:
363
Number of Pages:
5