Grado de mastitis bovina y su correlación con el conteo de células somáticas diferenciadas y el agente etiológico causante de la enfermedad

Abstract

Bovine mastitis is a disease of the mammary gland caused by several factors in the dairy herd, generating great economic losses. The objective of this study was to correlate the degree of bovine mastitis with the differential somatic cell count (DSCC) and the etiological agent causing the disease; with the purpose of standardizing a series of analyses, which will allow small-medium producers and cattle farms to accurately determine the occurrence of this pathology, in order to take appropriate measures, avoiding animal suffering, spread of the disease and economic losses. With a total of 365 samples analyzed from four zones of the North Sierra of Ecuador (Pichincha and Imbabura) divided into 16 small-medium producers and 10 cattle farms, it was determined that most of the cases studied have some degree of mastitis (Traces of 200,000-400,000 cells/mL to Grade 2 from 1,200,000 - 5,000,000 cells/mL) established in quadrant C (> 65 - >200,000 cells/mL) and with a significant presence of the most frequent pathogen in this study, Staphylococcus aureus, which causes most of the cases of subclinical and clinical bovine mastitis.