Table 1.

Total number of quarters infused with one of the two emulsion-based formulations, showing the etiological agents of mastitis.

Treatment	Culture-positive cases	Identity of pathogens	Cure rate of culture-positive cases based on SCC results (%)
L. lactis DPC3147 live (total N = 15 teats)	14/15	12/14 S. aureus, 2/14 Strep. uberis, 1/14 Strep. dysgalactiae	4/12 S. aureus (33.33%), 1/2 Strep. uberis (50%), 1/1 Strep. dysgalactiae (100%)
L. lactis DPC3147 heat-killed (total N = 13 teats)	9/13	7/9 S. aureus, 2/9 Strep. uberis	1/7 S. aureus (14.29%), 0/2 Strep. uberis (0%)

Cows with chronic mastitis were predominantly selected in this trial. N number denotes number of quarters infused per treatment group. A clinical cure was defined as a reduction in SCC to 250,000–750,000 cells/ml within 5–7 days of treatment and the absence of pathogens upon plating.