Utilization of growth promoter for broiler chickens in mashed and pellets diets - DOI: 10.4025/actascianimsci.v29i2.219

• Autor(a) principal: Lorençon, Letícia
• Data de Publicação: 2007
• Outros Autores: Nunes, Ricardo Vianna, Pozza, Paulo Cesar, Pozza, Magali Soares dos Santos, Appelt, Mathias Djalma, Silva, Wagner Thiago Mozer DA
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Acta Scientiarum. Animal Sciences (Online)
• Texto Completo: https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/219
• topic: antibióticos; desempenho; probióticos; promotores de crescimento; rendimento de carcaça; 5.04.00.00-2 Zootecnia

This study evaluated the supplementation effect of diets with different growth promoters on the performance and carcass yield in broilers from 1 to 42 days of age. Five hundred seventy six broilers of the Coob 500 lineage were used, all males, lodged in reused litter, allocated according to a completely randomized design in a 2 x 3 factorial scheme (physical forms of the ration x growth promoters), totalizing 6 treatments, 6 repetitions per treatment and 16 broilers per experimental unit. The performance parameters evaluated were weight gain, final weight, feed consumption, feed conversion, mortality and index productive efficiency. The carcass yield was also evaluated, as the cuts yield and percentage of abdominal fat at 42 days. The results demonstrated no effect of the treatments studied on the performance characteristics and carcass yield.