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Table 1 Definitions of the diseases with incidence rate and prevalence

From: Epidemiological study to investigate the incidence and prevalence of clinical mastitis, peracute mastitis, metabolic disorders and peripartum disorders, on a dairy farm in a temperate zone in Japan

Disease type Definition Incidence rate (%) Prevalence (%)
Clinical mastitis Symptoms having mastitis such as udder problem and milk problems, and white blood cell count was more than 4000 cell/μl. Bacteria detected from the cows with clinical mastitis was mainly Staphylococcus aureus, Streptococcus agalactiae, Streptococcus dysgalactiae, and Streptococcus uberis in the studied farm 21.9 28.0
Peracute mastitis Symptoms having mastitis such as udder problem and milk problems, and white blood cell count was less than 4000 cell/μl. Bacteria detected from the cows with peracute mastitis was mainly Escherichia coli and Klebsiella sp. in the studied farm 10.4 13.3
Metabolic disorder Fatty liver, Ketosis, Ketosis II 2.9 3.7
Peripartum disorder Puerperal fever, Placental retention, Lochia retention, Metritis 3.2 4.0
Other Entiritis, Bloody milk, Claw born lesions, Pneumonia