Utilização de prebióticos, ácidos orgânicos e óleos essenciais na alimentação de frangos de corte

Abstract

The work was conducted at the Poultry Section of the Center for Agricultural Sciences, Environmental and Biological Sciences of Federal University of Bahia Recôncavo, in Cruz das Almas, to study the effects of the use of probiotics, essential oils in place of antibiotics in diets of broiler chickens, Cobb, evaluating the parameters weight gain, feed intake, feed conversion and productive efficiency index. In the first and second study were used 320 chicks a day evaluated at 1-14 days of age, we used four treatments with four replicates and 20 birds per experimental unit in both experiments.The experimental design was completely randomized. The four treatments were: basal diet (BD) of corn and soybeans without additives or with the inclusion of DB enramycin antibiotic, or essential oils, or fumaric acids and prebiotic + propionic. It was concluded that use of some additives in food for the birds improved their performance in the variable Weight Gain, Feed Intake, Feed Conversion and Production Efficiency Index in broilers in the growth phase and can replace antibiotics.