title: [Aspects of subclinical mastitis in a dairy herd observed by the quarter difference value of electrical conductivity].
mesh_terms: D000818:Animals; D002417:Cattle; D004553:Electric Conductivity; D005122:Exudates and Transudates / Q000032:analysis; D005260:Female; D007774:Lactation; D008414:Mastitis, Bovine / Q000175:diagnosis*; D008892:Milk / Q000032:analysis; D011247:Pregnancy; D012965:Sodium Chloride / Q000032:analysis; D013223:Statistics as Topic; D013997:Time Factors
chemical_list: D012965:Sodium Chloride