Effect of type of muscle and Cu supplementation on trace element concentrations in cattle meat

• Published in: Food and chemical toxicology Vol. 49; no. 6; pp. 1443 - 1449
• Main Authors: García-Vaquero, M., Miranda, M., Benedito, J.L., Blanco-Penedo, I., López-Alonso, M.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01-06-2011; Elsevier
• Subjects: Animal and Dairy Science; Animals; arsenic; beef cattle; Biological and medical sciences; cadmium; Cattle; Chemical and industrial products toxicology. Toxic occupational diseases; chromium; cobalt; copper; Copper Sulfate - administration & dosage; Copper Sulfate - metabolism; Cu supplementation; diaphragm; Diaphragm - chemistry; diet; Dietary Supplements; Essential and toxic metals; Food Contamination - analysis; Food quality; humans; Husdjursvetenskap; Intensive system; iron; lead; manganese; meat; Meat Products - analysis; Medical sciences; mercury; metabolism; Metals and various inorganic compounds; molybdenum; Muscle, Skeletal - chemistry; Muscle, Skeletal - drug effects; Muscle, Skeletal - metabolism; Muscles; Myocardium - chemistry; nickel; selenium; Selenium - analysis; tin; Toxicology; Trace Elements - analysis; Veterinary Science; Veterinärmedicin; zinc; Muscles; Food quality; Cattle; Intensive system; Essential and toxic metals; Cu supplementation; Herbivorous; Bovine; Ruminant animal; Transition metal; Meat; Trace element; Group IB metal; Vertebrata; Mammalia; Quality; Livestock; Muscle; Artiodactyla; Supplementation; Copper; Ungulata; Food
• ISSN: 0278-6915; 1873-6351; 1873-6351
• DOI: 10.1016/j.fct.2011.03.041

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 (15mg Cu2SO4/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.