title: Cadmium and lead accumulation in cattle in NW Spain.
abstract: This study investigated if differences in nutritional management (linked to feed composition and feed intake) could determine differences in the toxic metal accumulations in beef and dairy cattle in NW Spain. Cadmium and lead concentrations were determined in the liver, kidney and muscle of 57 cows (3-16 y-o) by inductively coupled plasma optical emission spectroscopy. Dairy cattle accumulated significantly higher cadmium and lead residues in liver (51.6 and 43.7 microg/kg fresh weight) than did beef cattle (35.7 and 14.7 microg/kg). In the kidney and muscle, cadmium and lead residues were similar in both dairy and beef cattle. The higher metal accumulations in the liver of dairy cattle could be related not only to higher dietary intake, but also to the higher hepatic metabolism associated with milk production.
authors.affiliation: Universidade de Santiago de Compostela, Departamento de Patoloxía Animal, Facultade de Veterinaria, 27002 Lugo, Spain.
authors.forename: M
authors.initials: M
authors.lastname: López Alonso
authors.forename: F
authors.initials: F
authors.lastname: Prieto Montaña
authors.forename: M
authors.initials: M
authors.lastname: Miranda
authors.forename: C
authors.initials: C
authors.lastname: Castillo
authors.forename: J
authors.initials: J
authors.lastname: Hernández
authors.forename: J L
authors.initials: JL
authors.lastname: Benedito
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D002104:Cadmium / Q000032:analysis*; D002417:Cattle; D003612:Dairying / Q000592:standards; D005260:Female; D005506:Food Contamination; D007668:Kidney / Q000378:metabolism; D007854:Lead / Q000032:analysis*; D008099:Liver / Q000378:metabolism; D008297:Male; D008461:Meat Products / Q000592:standards; D018482:Muscle, Skeletal / Q000378:metabolism; D011786:Quality Control; D013030:Spain / Q000453:epidemiology; D014131:Trace Elements / Q000032:analysis*
chemical_list: D014131:Trace Elements; D002104:Cadmium; D007854:Lead