Second laying cycle effects of a mixture of organochlorine insecticides on broiler breeder hens ; Accumulation and depletion of some organochlorine pesticides in broiler breeder hens during the second laying cycle / C.A. Kan and J.C. Jonker-den Rooyen

Second laying cycle effects of a mixture of organochlorine insecticides on broiler breeder hens ; Accumulation and depletion of some organochlorine pesticides in broiler breeder hens during the second laying cycle / C.A. Kan and J.C. Jonker-den Rooyen