RESUMO
O objetivo deste experimento foi avaliar a infl uência da variação do nível de energia metabolizável na dieta de frangos de corte, associada a uma variação proporcional da densidade nutricional da ração, sobre o desempenho das aves (2,800, 2,900, 3,000, 3,100, 3,200 and 3,300kcal kg -1 ) and three slaughter ages (42, 49 and 56 days
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