Blanco Penedo, Isabel
- Department of Clinical Sciences, Swedish University of Agricultural Sciences
Abstract
Considering that meat is an important source of metals exposure to humans it is important to explore trace element concentrations in different types of muscles. Because of the demonstrated effect of Cu-supplementation on mineral status, the influence of Cu-supplementation was also evaluated. Samples of four different muscles (diaphragm, cardiac, semitendinous and pectoral, n = 120) from beef calves receiving typical commercial diets Cu-supplemented (15 mg Cu(2)SO(4)/kg DM) and non-supplemented were taken and acid digested. The levels of non-essential (As, Cd, Hg, Pb and Sn) and essential (Co, Cr, Fe, Mn, Mo, Ni, Se and Zn) elements were analyzed by ICP-MS. The statistical analyzes included two way Anova, post hoc DHS Tukey and Spearman correlations. The most active and less fat containing muscles showed in general the highest essential and the lowest non-essential trace element accumulation. As and Hg muscular residues are indicative of animal exposure, however, in situations of an adequate mineral status, essential trace element concentrations in muscle are irrespective of the mineral status of the animal and could be possibly related to their own particular muscular metabolism. Cu-supplementation significantly reduced As but caused a significant decrease of Se, which could have significance for the animal's health. (C) 2011 Elsevier Ltd. All rights reserved.
Keywords
Muscles; Food quality; Cattle; Intensive system; Essential and toxic metals; Cu supplementation
Published in
Food and Chemical Toxicology
2011, volume: 49, number: 6, pages: 1443-1449
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
SLU Authors
UKÄ Subject classification
Veterinary Science
Animal and Dairy Science
Publication identifier
- DOI: https://doi.org/10.1016/j.fct.2011.03.041
Permanent link to this page (URI)
https://res.slu.se/id/publ/57016