Correlación entre el pH ruminal y el índice de condición corporal en vacas con acidosis ruminal subaguda

Correlation between ruminal pH and body condition score in cows with subacute ruminal acidosis

Objetivo. Los objetivos de este estudio de campo fueron a) confirmar la presencia de acidosis ruminal subaguda (SARA) en los rebaños de vacas lecheras turcas en la región de Aydin, b) registrar su distribución regional y c) determinar si existe una relación entre las puntuaciones del estado corporal, ruminal Contracciones y pH ruminal. Materiales y métodos. Se extrajeron muestras de líquido ruminal, a través de rumenocentesis, de un total de 120 vacas lecheras Holstein, de 5 hatos (n = 24 vacas por rebaño). El pH del rumen se analizó en el sitio con un pH-metro portátil para un diagnóstico preciso de SARA. Los sistemas clásicos de clasificación de estado corporal (método USBCS) se utilizaron en escala 1-5 con intervalos de 0,25. Resultados. De las 120 vacas inscritas, 13 fueron (10.83%) clasificadas como SARA (pH =5.5), 6.6% marginales (pH 5.6-5.8) y 82,5% normales (pH>5.8). Hubo una diferencia significativa (p<0.01) entre la finca V y otras fincas con respecto al pH ruminal medio. El promedio global de BCS fue de 3.45±0.037, 3.43±0.122 y 4.30±0.075 en animales sanos, SARA sospechosos de vacas y vacas con SARA, respectivamente con aumento de BCS en vacas con SARA (p<0.01). La comparación intergrupal de contracciones ruminales mostró significación estadística (p<0.01). Hubo correlaciones entre el pH ruminal y la contracción ruminal (r=0.622, p<0.01), pH ruminal y estado de salud (r =-0.770, p<0.01), contracción ruminal y estado de salud (r=0.546, p<0.01). Conclusiones. En el presente estudio se utilizaron indicadores BCS y contracciones ruminal como indicadores, en los que se encontraron correlaciones entre pH ruminal y contracción ruminal y pH ruminal y BCS, favoreciendo el uso o esos parámetros como biomarcadores probables en vacas con SARA.

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