MATERNAL TRANSFER OF CONTAMINANTS: CASE STUDY OF THE EXCRETION OF THREE POLYCHLORINATED BIPHENYL CONGENERS AND TECHNICAL-GRADS ENDOSULFAN INTO EGGS BY WHITE LEGHORN CHICKENS(GALLUS DOMESTICUS)

摘要

Reported avian maternal transfer rates of orgnaochlorine contaminants range from 1/100 to as much as 20/100 of maternal body burdens. However, to our knowledge, no investigation of factors governing maternal transfer has been reported. Here, we report an investigation of maternal transfer 2,3,3',4,4'-pentachlorinated biphenyl(PCB 105)2,3,3',4,4'-hexachlorinated bi- phenyl(PCB 156), 2,3,3',4,4',5,5'-heptachlorinated biphenyl(PCB 189), and technical-grade endosulfan into eggs by white hens chickens(Gallus domesticus).