Assessment of heavy metal pollution in lung and kidney of broiler and it’s correlation of water and animals feed

Abstract

Cadmium is non-essential anthropogenic environmental pollutant present in soil, water, air and food. Consistency of consuming cadmium leads physiological disorders in chickens and also in humans as the highest food chain. The aim of this study was to analyze the profile of cadmium content in environmental samples (feed and water) by correlating the degree of contamination in chicken body. For this study, 30 sample of feeds and water and 60 organs (lung and kidney) have been examined. The results showed level of cadmium in feed between 0.009-0.202 mg / kg and 0.0068-0.0096 mg / l of cadmium in the water. Cadmium in the lungs and kidneys was positively contaminated by cadmium with a range of 0.438-0.655 mg / kg and it was significantly different (p <0.05) among the organs. A strong positive correlation was found between cadmium and water levels in renal (r = 0.925). In contrast, a weak positive correlation (r = 0.624) was found in the relationship between cadmium in feed and lung. As the conclusion, cadmium concentration in the poultry feed and drinking water increased significantly to the concentration of cadmium deposited in organs.