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Effects of chronic ingestion of South Louisiana crude oil on mallard ducklings

Environmental Research

2144_Szaro.pdf
By:
, , ,
DOI: 10.1016/0013-9351(78)90046-4

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Abstract

South Louisiana crude oil was fed to duckling mallards (Anas platyrhynchos) in concentrations of 0.025, 0.25, 2.5, and 5.0% of the diet from hatching to 8 weeks of age to assess the effects of chronic oil ingestion during early development. Growth was depressed in birds receiving a diet containing 5% oil but there was no oil-related mortality. Diets containing 0.25, 2.5, and 5.0% oil impaired avoidance behavior of 6-day-old mallard ducklings when compared with controls or ducklings fed 0.025% oil, but had no effect on open-field behavior of 7-day-old ducklings. Liver hypertrophy and splenic atrophy were gross evidence of the pathological effects of oil in birds on the 2.5 and 5.0% oil diets. Biochemical lesions that occurred included elevation of plasma alanine aminotransferase and ornithine carbamyl transferase activity. Hepatocyte hypertrophy and bile duct proliferation in the liver were noted in birds fed the 2.5 and 5.0% oil diets and tubular inflammation and degeneration in the kidney were noted in birds fed the 5.0% oil diet.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Effects of chronic ingestion of South Louisiana crude oil on mallard ducklings
Series title:
Environmental Research
DOI:
10.1016/0013-9351(78)90046-4
Volume
17
Issue:
3
Year Published:
1978
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
426-436
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Environmental Research
First page:
426
Last page:
436
Number of Pages:
11