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Effects of carbofuran, chlorpyrifos and deltamethrin on hatchability, deformity, chick size and incubation time of Japanese quail ( Coturnix japonica ) eggs
Author(s) -
Martin Pamela A.
Publication year - 1990
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.5620090417
Subject(s) - incubation , quail , carbofuran , hatchling , deltamethrin , biology , hatching , zoology , incubation period , chlorpyrifos , toxicology , pesticide , ecology , biochemistry
Japanese quail ( Coturnix japonica ) eggs were immersed in aqueous emulsions of carbofuran, chlorpyrifos and deltamethrin at three potential field concentrations and at three stages of incubation. No effects of pesticide exposure on hatchability were detected. There were no significant effects of carbofuran on rate of hatchling deformity, incubation time, chick mass or tarsus length. Eggs treated immediately prior to incubation with chlorpyrifos at two times the recommended field application level had a significantly greater rate of hatchling deformity (e.g., foot malformations and scoliosis) and a longer incubation period than controls. Eggs exposed to two times field application rates of deltamethrin at the preincubation stage had significantly longer incubation periods and eggs exposed to this rate of deltamethrin on incubation day 14 produced significantly lighter chicks than controls. Overall, effects were small and the three insecticides did not represent a significant hazard to quail embryos at conditions up to two times field levels of application.