Desempenho de frangos de corte de 1 a 21 dias alimentados com rações contendo farelo residual de milho com e sem enzimas

Abstract

The objective of this research was to evaluate the effect of experimental diets containing different levels of inclusion of residual corn bran (FRM) supplemented or not with enzymatic complex, through performance parameters in broilers from 1 to 7 and from 8 to 21 days of age. The FRM is a product resulting from the processing of maize for the generation of by-products destined for human consumption, being an ingredient with the potential to make up the rations of broiler chickens used by producers in the Northeast region. The treatments were diets included levels of FRM, without and with enzyme (S/E and C/E): 0% FRM S/E, 0% FRM C/E; 18% FRM S/E; 18% FRM C/E; 36% FRM S/E; 36% FRM C/E; 54% FRM S/E; 54% FRM C/E. A total of 1536 male chicks of the commercial strain Ross 308 (AP95) from 1 to 21 days of age were housed in boxes, in a 4x2 factorial arrangement (four inclusion levels of FRM x without and with enzyme), eight replicates with 24 birds per unit experimental. The performance variables were daily mean weight gain (GPMD), mean daily feed intake (CMDR) and feed conversion (CA) in stages 1 to 7, 8 to 21 and in the total period of 1 to 21 days. The FRM can be used up to 54% in diets for broiler chickens from 1 to 21 days of age without affecting the performance parameters of the animals, and supplementation of the enzymatic complex in the experimental diets resulted in improved feed conversion of the ingredients present in the feed.