The Effects of Propolis on Biochemical Parameters and Activity of Antioxidant Enzymes in Broilers Exposed to Lead-Induced Oxidative Stress (Report‪)‬

INTRODUCTION Increasing environmental pollution because of industrial development, and the effects on human and animal health of the heavy metals and metal compounds because of these major environmental pollutants, constitutes an increasingly important area of interest in recent years. Environmental exposure to lead and lead-containing compounds is detrimental to human health (especially the health of children) and is a critical ecological problem in the modern world. The human organism is primarily exposed to lead via food (about 85%). Food and raw materials for the food industry may be contaminated by lead transferred from soil, water, the atmosphere, and the fodder of agricultural animals (Lysenko, 2005).