title: New Zealand national mastitis survey: 1965-6. 2. Measures of mastitis prevalence.
mesh_terms: D000818:Animals; D002417:Cattle; D002452:Cell Count; D005260:Female; D008414:Mastitis, Bovine / Q000453:epidemiology* / Q000473:pathology; D008892:Milk / Q000166:cytology; D009520:New Zealand