PERFORMANCE AND CARCASS TRAITS OF BROILERS FED DIETS CONTAINING YEAST EXTRACT DESEMPENHO E CARACTERISTICAS DE CARCAÇAS DE FRANGOS DECORTE RECEBENDO EXTRATO DE LEVEDURAS NA DIETA

This experiment was conducted to evaluate the effectof a yeast extract product on broiler growth performanceand carcass traits. A total of 810 male Ross broiler chickswere distributed in 27 pens (30 birds per pen) in a completelyrandomized design. The animals were fed the experimentaldiets from 1 to...

Full description

Bibliographic Details
Main Authors: Niédi Zauk, Elizelle R. Rosa, Aline D. Delgado, Fernanda M. Gonçalves, José L. Rech, Marcos Antônio Anciuti, Fernando Rutz, Carmem L.G. Ribeiro, Rodrigo R. Silva, Paulo Roberto Dallmann
Format: Article
Language:English
Published: Universidade Federal de Goiás 2006-12-01
Series:Ciência Animal Brasileira
Online Access:http://www.revistas.ufg.br/index.php/vet/article/view/855
Description
Summary:This experiment was conducted to evaluate the effectof a yeast extract product on broiler growth performanceand carcass traits. A total of 810 male Ross broiler chickswere distributed in 27 pens (30 birds per pen) in a completelyrandomized design. The animals were fed the experimentaldiets from 1 to 42 days of age. Treatments consisted offeeding a T1) basal corn-soybean meal diet; T2) a dietcontaining 2% yeast extract from 1 to 7 days of age and T3)a diet containing 2% yeast extract from 1 to7 and 38 to 42days of age. Better growth performance was observed inbirds fed yeast extract from 1 to 7 and from 38 to 42 days ofage. Carcass traits were not statistically influenced by thedietary treatments.
 
 KEY WORDS: Body weight gain, feed conversion, feed intake, organs. Este estudo visou avaliar o efeito da utilização deum extrato de levedura sobre o desempenho e característi-cas de carcaça de frangos de corte. Um total de 810 frangos Ross, machos, foram distribuídos aleatoriamente em 27 boxes (trinta aves por boxe). As aves receberam as dietasexperimentais de 1 a 42 dias de idade. Os tratamentos consistiram em fornecer uma dieta à base de milho e farelo desoja (T1), uma dieta contendo extrato de levedura de 1 a 7dias (T2) e uma dieta contendo extrato de levedura de 1 a 7e de 38 a 42 dias de idade (T3). Os resultados experimentais indicam que o desempenho produtivo foi melhor ao se fornecer extrato de levedura de 1 a 7 e de 38 a 42 dias de idade.As características de carcaça não foram influenciadas estatisticamente pelas dietas experimentais.
 PALAVRAS-CHAVE: Ganho de peso, conversão alimentar, consumo de ração, órgãos.
ISSN:1518-2797
1089-6891