Effects of dieldrin and PCB's upon the production and morphology of japanese quail eggs

Call, Daniel J.; Harrell, Brian

doi:10.1007/bf01685031

Cited by 9 publications

(2 citation statements)

References 22 publications

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“…For example, shell thickness of mallards and bobwhites Colinus virginianus fed 25 and 50 mg kg"' Aroclor 1254 was not affeeled (Heath et al 1972), and shell weights of ring doves on a 10 mg kg"' PCB diet, and those of PCB injeeted doves, did not differ from controls (Peakall 1971). However, significant shell thinning was demonstrated at higher dietary PCB levels (62.5-5000 mg kg"') in the Japanese quail (Call and Harrell 1971). Several experimental studies have shown strong effects of PCB on domestic hen reproduction, with low hatching success, high embryo-mortality and deformities of embryos (McLaughlin et al 19(i3, Platanow and Reinhart 1973.…”

Section: Dde and Pcbmentioning

confidence: 94%

Residue levels of organochlorine and mercury compounds in unhatched eggs and the relationships to breeding success in white‐tailed sea eagles Haliaeetus albicilla in Sweden

1982

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Eighty‐five unhatched eggs from 68 white‐tailed sea eagle clutches were collected during 1965–1978 along the Baltic coast and in Lapland. The eggs were analysed individually for residue levels of DDT and its metabolites, PCB and mercury. Pooled samples were analysed for levels of dieldrin and hexachlorobenzene (HCB). The variations in residue levels within and between clutches were studied before the material was grouped for investigations of relationships between reproduction and contamination. Levels of DDE, PCB and mercury were significantly higher in the Baltic as compared to the Lapland material. In the Baltic, the reproductive success on a clutch basis and on a nest basis was significantly and negatively correlated to the egg residue levels of DDE and PCB; no correlation was found with mercury. Critical ranges were estimated to 500–600 mg kg1 of DDE and/or 800–900 mg kg−1 of PCB (lipid basis). The levels of dieldrin and HCB in the pooled samples were not considered important to reproduction. In a comparative study including six sea eagle and six bald eagle populations, productivity showed the strongest correlation with DDE.

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