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Title

Relationship of Serum Concentrations of Calcium, Beta-hydroxybutyrate and Glucose to the Occurrence of Mammary and Uterine Disorders during Early Lactation on Dairy Cattle

Resumen

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

Palabras clave

mastitis subclínica, metritis, perfil metabólico

Abstract

This study aimed to relate the serum levels of energy indicators (glucose and beta-hydroxybutyrate) and calcium to the occurrence of uterine and mammary diseases in the transition period of Holstein cows. One hundred and fifteen Holstein cows from a commercial herd were monitored starting one week before calving and during the first 2 weeks after calving. The presence of subclinical mastitis was monitored for 3 weeks postpartum using the California Mastitis Test (CMT) and somatic cell counting. Positive samples of subclinical mastitis were analyzed for bacterial identification. Clinical mastitis was monitored for 6 weeks postpartum, using data that were recorded by the farmer based on some established definitions. The presence of uterine disorders was identified for 3 weeks postpartum by clinical examination. Blood collections were made from all cows for determining calcium, glucose, and β-hydroxy-butyrate (BHB) the week before calving and twice during the postpartum (days 5 and 15 postpartum). A group of 70 healthy cows was used as control. Clinical mastitis was identified in 20% of the cows, subclinical mastitis in 10.4% and clinical metritis in 8.7% of the cows. The bacterial agents with the highest occurrence in subclinical mastitis cases were coagulase-negative Staphylococcus and Streptococcus. No relationships were observed between any of the biochemical metabolite studied and the uterine and mammary diseases in the cows during the studied period

Keywords

metabolic profile, metritis, subclinical mastitis

Digital Object Identifier (DOI)

https://doi.org/10.19052/mv.vol1.iss41.8

Fecha de recepción

14 de marzo de 2020

Fecha de aceptación

2 de octubre de 2020

Fecha de publicación

2020-11-24

Licencia Creative Commons

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Tipo de documento

Artículo de Investigación

Editorial

Universidad de La Salle. Ediciones Unisalle

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