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Breaking strength: An alternative indicator of toxic effects on avian eggshell quality
Author(s) -
Carlisle J. C.,
Lamb D. W.,
Toll P. A.
Publication year - 1986
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620051004
Subject(s) - eggshell , anas , breaking strength , shell (structure) , environmental science , chemistry , environmental chemistry , biology , materials science , ecology , composite material
A method for measuring the breaking strength of avian eggshells is presented along with a brief review of the literature relating shell strength to chlorinated hydrocarbon exposure. The effect of dietary DDE on shell strength is compared with its effect on shell thickness in the mallard duck ( Anas platyrhynchos L). Shell strength was significantly reduced at a lower dietary DDE concentration than was shell thickness. The potential utility of strength measurement as an end‐point in toxicology studies is discussed.