Reemplazo de monensina y virginiamicina por aceites esenciales y ácidos grasos de cadena corta en ganado vacuno confinado a una dieta pura de granos: rendimiento, consumo de materia seca y parámetros ruminales

Autores/as

DOI:

https://doi.org/10.33448/rsd-v12i10.43502

Palabras clave:

Aditivos naturales; Eficiencia energética; Extractos de plantas; Sostenibilidad.

Resumen

El objetivo de este trabajo fue evaluar la sustitución de monensina y virginiamicina por aceites esenciales y ácidos grasos de cadena corta sobre el rendimiento, el consumo de materia seca y los parámetros ruminales en ganado vacuno alimentado con dietas puras de granos. Se utilizaron 36 bovinos machos enteros con una edad promedio de 6 ± 2 meses de edad y 257,2 ± 17,2 kg de peso vivo promedio inicial, divididos en 2 tratamientos: dieta con virginiamicina y monensina y dieta con aceites esenciales y ácidos grasos de cadena corta. Los animales fueron adaptados a dietas puras de cereales en una proporción de 85% de maíz integral y 15% de núcleo de proteína mineral durante 14 días y permanecieron en el periodo experimental durante 98 días. Se realizaron evaluaciones de rendimiento, consumo de materia seca en % de peso vivo, conversión alimenticia, pH fecal, pH ruminal y cantidad de ácidos grasos volátiles en el rumen. El estudio se llevó a cabo en un diseño completamente al azar. Se observó una diferencia en la ganancia diaria promedio (P<0,01) en el período experimental. Para las variables consumo de materia seca en % de peso vivo y conversión alimenticia no se encontraron diferencias significativas (P>0.05). En cuanto a la cantidad de ácidos grasos volátiles solo se encontraron diferencias (P<0.01) para la producción de ácido acético. Con excepción del período de las 22:00 horas, todos los períodos evaluados (06:00; 14:00 y general) mostraron una diferencia significativa (P<0.01) para el pH ruminal. Se concluyó que la sustitución de monensina y virginiamicina por aceites esenciales y ácidos grasos de cadena corta en ganado vacuno alimentado con dietas puras de granos demostró ser eficaz para el rendimiento sin comprometer los parámetros ruminales, lo que podría comprometer la salud del animal.

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Publicado

17/10/2023

Cómo citar

LOPES, L. S. .; JUNQUEIRA, F. S. .; ARAÚJO, F. F. .; MACHADO, R. S. .; ARAÚJO, P. C. R. . Reemplazo de monensina y virginiamicina por aceites esenciales y ácidos grasos de cadena corta en ganado vacuno confinado a una dieta pura de granos: rendimiento, consumo de materia seca y parámetros ruminales. Research, Society and Development, [S. l.], v. 12, n. 10, p. e125121043502, 2023. DOI: 10.33448/rsd-v12i10.43502. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/43502. Acesso em: 22 nov. 2024.

Número

Sección

Ciencias Agrarias y Biológicas