THE HEAVY METAL CONTENT IN COMMERCIAL DOG FOODS
Journal Title: Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura Alimentaria Piscaria et Zootechnica - Year 2017, Vol 41, Issue 332
Abstract
Increasing interest in pet animals, particularly dogs, enforces paying special attention to their nutrition. Twelve food types were selected for the study, divided into food for young dogs („junior”) and mature dogs („adult”). Heavy metals that are harmful for organism (cadmium, mercury, lead) were selected for the study, as well as these, which in certain amounts are necessary for its proper functioning (copper, iron, zinc). Concentrations of heavy metals such as: cadmium, mercury and lead were compared with the Ordinance of the Minister of Agriculture and Rural Development of February 6, 2012 on the undesirable substance content in feeds, demonstrating the limits of the analyzed metals (cadmium, mercury, lead). The study has demonstrated, that cadmium is the metal that exceeds acceptable standards and its concentration was 2.499 mg ⋅ kg−1 (limit 2 mg ⋅ kg−1). Foods for adult dogs contained higher mean heavy metal concentrations (cadmium, lead, iron, copper, zinc) than „junior” foods, excepts for mercury and iron, for which higher concentrations were observed for „junior” foods. The study has demonstrated exceeding of allowable concentration limit only for cadmium (adult food), the concentration of which was 2.499 mg ⋅ kg−1 (limit 2 mg ⋅ kg−1).
Authors and Affiliations
Marcin MIELCZAREK, Kamil SZYDŁOWSKI
Keywords
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