Comparative study of potentially toxic metals (Cu, Al, Cr, Cd, Hg, Ni) and metalloid (As) in liver and muscle tissue; and their influence on the percentage of protein in chicken meat

Rossi G.S. · Revista de Investigaciones Veterinarias del Peru (2025) · DOI: 10.15381/rivep.v36i5.26207

Resumen

The growing number of informal poultry farms does not guarantee that chicken feed is adequate, and it may contain heavy metals or ecotoxic metalloids accumulated in meat and liver. The presence of these elements can adversely influence the protein content of meat (%P), and impact consumer health. Fresh samples of liver and muscle tissue (n = 50 and n = 56, respectively) collected from the main supply centres of the eight (8) provinces of the department of Arequipa, Peru, were analysed to determine Cu, Al, Cr, As, Cd, Hg and Ni, by inductively coupled plasma mass spectrometry (ICP-MS); as well as the %P in muscle tissue by the Kjeldahl method to determine their correlation. The concentration of the elements was higher in liver (h) than in muscle tissue (m), without implying risk for their consumption. The mean and standard error of %P in (m) was 22.12% ± 0.18 and the 95% confidence interval CI = 21.757 - 22.474%, with %P having a moderate, positive and significant correlation at the 0.000 level with the chromium concentration in (m), while the correlation with the chromium concentration in (h) was significant at the 0.05 level and also moderate, positive. © Los autores. Este artículo es publicado por la Rev Inv Vet Perú de la Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos. Este es un artículo de acceso abierto, distribuido bajo los términos de la licencia Creative Commons Atribución 4.0 Internacional (CC BY 4.0) [https://creativecommons.org/licenses/by/4.0/deed.es] que permite el uso, distribución y reproducción en cualquier medio, siempre que la obra original sea debidamente citada de su fuente original

Instituciones: Universidad Nacional de San Agustín de Arequipa