Streptococcus agalactiae in dairy heards. Its incidence and relationship to cell count and inhibitory substance levels in bulk milk.
D000818:Animals; D002417:Cattle; D005260:Female; D008414:Mastitis, Bovine / Q000382:microbiology*; D008892:Milk / Q000166:cytology / Q000382:microbiology*; D012044:Regression Analysis; D012621:Seasons; D013291:Streptococcus / Q000187:drug effects / Q000302:isolation & purification*