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Changes in mineral composition of eggshells from black ducks and mallards fed DDE in the diet

Bulletin of Environmental Contamination and Toxicology

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Abstract

Diets containing 10 and 30 ppm (dry weight) DDE were fed to black ducks, and diets containing 1, 5, and 10 ppm (dry weight) DDE were fed to mallards. Among the results were the following changes in black duck eggshell composition: (a) significant increase in the percentage of Mg, (b) significant decreases in Ba and Sr, (c) increases (which approached significance) in average percentage of eggshell Na and Cu, (d) a decrease in shell Ca which approached significance, (e) patterns of mineral correlations which in some instances were distinct to dosage groups, and (f) inverse correlations in the control group between eggshell thickness Mg and Na. Changes in mallard eggshells were: (a) significant increase in percentage of magnesium at 5 and 10 ppm DDE, (b) significant decrease in Al at 5 and 10 ppm DDE, (c) a significant decrease in Ca from eggshells from the 10 ppm DDE group, and (d) an increase in average percentage of Na in eggshells from DDE dosed ducks which approached significance.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Changes in mineral composition of eggshells from black ducks and mallards fed DDE in the diet
Series title:
Bulletin of Environmental Contamination and Toxicology
Volume
6
Issue:
4
Year Published:
1971
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
345-350
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Bulletin of Environmental Contamination and Toxicology
First page:
345
Last page:
350
Number of Pages:
6