title: Effect of freezing and storage at -20 C on survival of mastitis pathogens.
mesh_terms: D000818:Animals; D001431:Bacteriological Techniques; D002417:Cattle; D002470:Cell Survival; D005260:Female; D005615:Freezing; D008414:Mastitis, Bovine / Q000382:microbiology*; D013210:Staphylococcus / Q000254:growth & development* / Q000302:isolation & purification; D013291:Streptococcus / Q000254:growth & development* / Q000302:isolation & purification; D013292:Streptococcus agalactiae / Q000254:growth & development / Q000302:isolation & purification; D013696:Temperature; D013997:Time Factors