An enrichment broth and differential medium for the isolation of mastitis organisms from the milk of distant herds

Coagulase Positive Staphylococci From Bulk Milk Supplies Low in Solids‐not‐fat

“…Isolation of strains. At the dairy, samples of the bulk milk supplies were put with sterile dippers into bottles containing an enrichment broth (Innes, 1953). These were incubated a t 37" €or 24 hr, subcultures then being made on to plates of Ludlam's agar (Ludlam, 1949), which were incubated a t 37" for 24-48 hr.…”