Natural Growth Promoters Replacing Traditional Growth Promoters in Diets for Light Replacement Pullets: A Systematic Approach

The effect of using natural growth promoters (NGP) to replace traditional antimicrobials on performance, biometry digestive and reproductive organs, sexual maturity bone characteristics replacement pullets was evaluated; the relationship between these variables according diets verified. Eight-week-old birds were randomly assigned a completely randomized design fed different diets: negative control (without promoters); positive - conventional promoter; organic acids (OA); symbiotic (S); essential oil (EO); OA + S; EO S. relative weight organs length intestines, height crest length, sternum quality similar (p>0.05) treatments. heat map combined with cluster analysis showed uniform static pattern formation three horizontal groups formed by treatments: 1) control, S 2) OE 3) A null treatments under study observed. principal components revealed an association in 60.55% variation. NGP can promoters, as they do not interfere biometrics or maturity. Height are predictive for development especially oviduct. similarity identified through multivariate techniques acids; oils; oils.