The use of oregano essential oil and enzyme mixture in corn-soybean meal based diets of broiler chicks

Abstract

This study was conducted to investigate the effects of the dietary oregano essential oil (OEO) with or without enzyme (ENZY) supplementation on the growth performance, digestive enzymes' activity, nutrient digestibility, lipid metabolism and immune response of broilers until to 21 d. The diets were supplemented with: no OEO or ENZY, 1 g/kg of the ENZY, 250 mg/kg of the OEO, 250 mg/kg of the OEO plus 1 g/kg of the ENZY, 500 mg/kg of the OEO, 500 mg/kg of the OEO plus 1 g/kg of the ENZY.