Resumen -El objetivo del presente trabajo fue evaluar el comportamiento productivo y el rendimiento de la canal en pollos de engorda, con el uso de harina de hojas de plantas aromáticas como aditivo fitoterapéutico al 0,07% en la dieta. Fueron utilizados 280 pollitos machos de la estirpe Ross 308, de 1 a 42 días de edad, distribuidos de forma aleatoria en un diseño completamente al azar, en cuatro tratamientos y siete repeticiones con 10 pollos cada una. Las combinaciones fueron en proporción 50:50 de harina de Origanum vulgare y Piper auritum (OHS), O. vulgare y Ocimum basilicum (OA), O. basilicum y P. auritum (HSA), y un testigo con flavomicina al 4%. El grupo testigo obtuvo el mayor peso corporal (2.385 g), consumo de alimento (204 g por ave por día) y mortalidad acumulada (21,87%), al final de la prueba. No hubo diferencias con la combinación de OA (2.198 g) y HSA (2.023 g) en peso corporal y consumo de alimento. La combinación OA registró la menor (1,96) y OHS la mayor (2,44) conversión de alimento. No se encontraron diferencias en el rendimiento de la canal. La combinación al 50% de O. vulgare y O. basilicum, incluida al 0,07% en la dieta para pollos de engorda, es una alternativa como promotora del crecimiento y no altera el rendimiento de la canal.Términos para indexación: Ocimum basilicum, Origanum vulgare, Piper auritum, consumo de alimento, promotores de crecimiento, rendimiento de canal. Leaf meals of aromatic plants as fitotherapeutics for broilersAbstract -The objective of this study was to determine the growth performance and carcass yield in broilers using leaf meals as an additive phytotherapy of herbs at 0.07% in the diet. Two hundred eighty male chicks of Ross 308 strain, with 1 to 42 days of age, were randomly assigned in a completely randomized design with four treatments and seven replicates of 10 chickens each. The blends were in the proportion of 50:50 of Origanum vulgare and Piper auritum (OHL), O. vulgare and Ocimum basilicum (OA), O. basilicum and P. auritum (AHL), and one control group with flavomicim at 4%. The control group showed the highest body weight (2,385 g), feed consumption (204 g per broiler per day) and accumulative mortality (21.87%), at the end of the assay. There was no difference with OA (2,198 g) and AHL (2,023 g) blends in body weight and feed consumption. The blend OA had the lowest (1.96) and OHL had the highest (2.44) feed conversion. There was no difference in the carcass yield. The blend at 50% of O. vulgare and O. basilicum, included at 0.07% in the diet for broilers, is an alternative for promoting growth and does not alter the yield carcass.
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