This transfer model can be used to estimate the concentration of several (banned) organochlorine pesticides in egg yolk fat of the laying hen based on oral exposure to feed contaminated with these pesticides. The pesticides included in this model are dieldrin, hexachlorobenzene (HCB), alpha-hexachlorocyclohexane (alpha-HCH), beta-hexachlorocyclohexane (beta-HCH), gamma-hexachlorocyclohexane (gamma-HCH; lindane), heptachlor and dichlorodiphenyltrichloroethane (DDT). General information on how to use the transfer models on this website can be found under “How to use”. The specific manual for the persistent  pesticides – laying hen can be found here. A log with the changes made after the release of version 1.0 of the model can be found here.  

Adapted from: Van Eijkeren JC, Zeilmaker MJ, Kan CA, Traag WA and Hoogenboom LA (2006) A toxicokinetic model for the carry-over of dioxins and PCBs from feed and soil to eggs. Food Add. Contam., 23 (5) 509-517.; Notenboom S, Zeilmaker MJ, van Eijkeren JCH, Hoogenboom LAP, Punt A and Bokkers BGH (2022), A congener-specific modelling approach for the transfer of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (dl-PCBs) from feed to eggs of laying hens. Food Add. Contam.; Kan CA and Jonker-den Rooyen JC (1978) Accumulation and depletion of some organochlorine pesticides in high-producing laying hens. J. Agric. Food Chem. 26, 935-40.

Cite as: "Transfer model organochlorine pesticides - laying hen, version 1.0 (available via" when referring to this model.