Somatic cell count in bovine quarter milk samples culture positive for various Staphylococcus species

Table 2 The percentages of isolates of different Staphylococcus species in different milk somatic cell count (SCC) classes

Staphylococcus species	% Isolates in different milk SCC classes
Staphylococcus species	1	2	3	4	5	6	7	8
S. agnetis/S. hyicus	12.0	8.0	16.0	20.0	12.0	4.0	8.0	20.0
S. aureus	14.3	19.0	2.4	9.5	11.9	7.1	11.9	23.8
S. chromogenes	13.9	25.3	28.5	12.7	5.1	5.1	4.4	5.1
S. cohnii	33.3	12.5	16.7	8.3	12.5	0.0	8.3	8.3
S. epidermidis	41.9	11.5	13.6	7.2	4.7	4.3	9.0	7.9
S. haemolyticus	33.3	9.6	19.3	7.9	7.9	2.6	9.6	9.6
S. simulans	13.3	10.7	23.1	12.0	6.7	8.0	13.8	12.4
S. warneri	50.5	13.3	11.4	10.5	1.9	3.8	4.8	3.8
S. xylosus	32.6	20.9	18.6	11.6	7.0	2.3	4.7	2.3
Other species^a	45.0	22.5	12.5	2.5	0.0	7.5	7.5	2.5

The SCC classes: 1: 1–50,000 cells/mL, 2: 51000–100,000 cells/mL, 3: 101,000–200,000 cells/mL, 4: 201,000–300,000 cells/mL, 5: 301,000–400,000 cells/mL, 6: 401,000–500,000 cells/mL, 7: 501,000–1,000,000 cells/mL, and 8: > 1,000,000 cells/mL
^aOther species: 1 S. arlettae, 10 S. capitis, 6 S. devriesei, 4 S. equorum, 2 S. hominis, 2 S. lugdunensis, 2 S. nepalensis, 4 S. pasteuri, 1 S. rostri, 2 S. saprophyticus, 5 M. sciuri, 1 S. succinus

ISSN: 1751-0147