LEVEL ASSESMENT OF LEAD IN MIXED FEEDS FOR BROILERS CHICKEN AND THEIR EXPOSURE TO TOXIC RISK
Aida Albu, Felicia Tîrcă, I.M. Pop, Cristina Radu-Rusu
Lead is a heavy metal, especially dangerous, which can affect animal health. The goal of the researches was to identify and evaluate the lead residues in mixed feeds for broiler chickens and their exposure to toxic risk. Thirty samples of mixed feeds (starter, grower, finisher), were harvested and investigated in 2006 and 2007 years. Lead concentration was assessed using atomic absorbtion spectrofotometry method in flame. The results (expressed in mg/kg at 12% moisture) showed that all analyzed samples contained lead residues in detectable amounts, with average values ranging between 0,43 and 1,47 mg/kg. Based on estimated intake of lead from mixed feeds for broiler chickens was calculated the risk exposure of consumers. The data obtained showed that mixed feeds are adequate and doesn't endanger the safety of production and animal health.
Key words: lead, mixed feeds, toxic risk