title: Effect of various lead and cadmium levels in broiler and laying rations on the performance of the birds and on the residues in tissues and eggs.
mesh_terms: D000818:Animals; D001835:Body Weight / Q000187:drug effects; D002104:Cadmium / Q000378:metabolism; D002105:Cadmium Poisoning; D002645:Chickens / Q000378:metabolism; D004531:Eggs / Q000032:analysis; D005506:Food Contamination; D007854:Lead / Q000378:metabolism; D007855:Lead Poisoning / Q000662:veterinary*; D011201:Poultry Diseases / Q000378:metabolism; D013997:Time Factors; D014018:Tissue Distribution
chemical_list: D002104:Cadmium; D007854:Lead