ANALYSIS OF CONTAMINATION WITH HEAVY METALS AND POLYCHLORINATED BIPHENYLS OF BROILER COMPOUND FEED

D.M. Lăpușneanu, I.M. Pop, D. Simeanu, Cristina Gabriela Radu-Rusu, Mădălina Matei

Abstract
   In order to ensure food safety, it is necessary to consider all aspectso of the food chain, from the primary agricultural production, including compound feed production, to the supply of consumers, as each of these can affect the safety of final products. The paper aims to determine the contamination with heavy metals and polychlorinated biphenyls of compound feed for broiler in different growth phases. Feed samples were taken during 2019 and 2020 from a feed mill representative for Romania in terms of production capacity (over 70,000 t/year). In 2019, for the analyzed starter compound feed, quantifiable results were found for the content in Cd (0.146 ppm), Pb (1.6 ppm) and Zn (14.1 ppb); for finisher compound feed, positive values were identified for the content in Cu (10.6 ppm), respectively Zn (10.6 ppm). In 2020, quantifiable results for the concentration of As (0.2 ppm), Cu (13.4 ppm) and Zn (43.4 ppm) were identified for the finisher compound feed. Regarding the results of the analyzes for the determination of the concentration in polychlorinated biphenyls (PCB 28, PCB 52, PCB 101, PCB 138, PCB 153, PCB 180, PCB sum) of compound feed, they were below the detection limit (2 ppb) for analyzes performed in both years of study. Monitoring and analysis of chemical contaminants in compound feed can aid control and prevent contamination, with a direct impact on food safety, animal and human health.