Resumen
<p>Este estudio tuvo por objetivo relacionar valores séricos de indicadores energéticos (glucosa y beta-hidroxibutirato) y calcio con la ocurrencia de trastornos uterinos y mamarios durante el período de transición en vacas Holstein. Ciento quince vacas Holstein de un rebaño comercial fueron monitoreadas en la semana previa al parto y durante las primeras dos semanas después del parto. La presencia de mastitis subclínica fue monitoreada por 3 semanas postparto mediante la prueba de mastitis California (CMT) y conteo de células somáticas. Las muestras positivas a mastitis subclínica fueron analizadas para identificación bacteriana. La mastitis clínica fue monitoreada durante 6 semanas postparto, usando datos registrados en el rebaño. La presencia de trastornos uterinos fue identificada durante 3 semanas postparto mediante examen clínico. Se realizaron muestras de sangre de todas las vacas para determinar calcio, glucosa y β-hidroxibutirato la semana anterior al parto y dos veces en el postparto (días 5 y 15). Un grupo de 70 vacas sanas fue usado como control. Un 20% de las vacas presentó mastitis clínica, el 10,4% mastitis subclínica y el 8,7% metritis clínica. Los agentes bacterianos con mayor ocurrencia en los casos de mastitis subclínica fueron Staphylococcus coagulasa-negativos y Streptococcus. No se observó relación de ninguno de los metabolitos bioquímicos con los trastornos uterinos o mamarios en las vacas durante el período estudiado</p>Referencias
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Palabras clave
metritis
perfil metabólico