title: Egg binding in broiler chickens fed heptachlor.
mesh_terms: D000818:Animals; D002645:Chickens; D005260:Female; D006533:Heptachlor / Q000494:pharmacology*; D010063:Ovum / Q000187:drug effects*; D010573:Pesticide Residues / Q000494:pharmacology; D012098:Reproduction / Q000187:drug effects
chemical_list: D010573:Pesticide Residues; D006533:Heptachlor