Table 4 Downregulation of the rnaIII gene activity of Staphylococcus aureus by three different culture preparations obtained from bovine non-aureus staphylococci (NAS) isolates from milk and teat apices (TA) [no. (%)]
NAS species (no.)1 | SP2 [no. (%)] | SPK [no. (%)] | CS [no. (%)] | All culture preparations [no. (%)] | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Milk (45) | TA (14) | Total (59) | Milk (45) | TA (14) | Total (59) | Milk (45) | TA (14) | Total (59) | Milk (45) | TA (14) | Total (59) | |
All (59) | ||||||||||||
 Severe effect3 | 12 (26.7) | 6 (42.8) | 18 (30.5) | 5 (11.1) | 2 (14.3) | 7 (11.9) | 1 (2.2) | 1 (7.1) | 2 (3.4) | 18 (13.4) | 9 (21.4) | 27 (15.2) |
 Moderate effect | 24 (53.3) | 2 (14.3) | 26 (44.1) | 26 (57.8) | 7 (50.0) | 33 (56.0) | 2 (4.5) | 4 (28.6) | 6 (10.2) | 52 (38.5) | 13 (30.9) | 65 (36.8) |
 Slight effect | 1 (2.2) | 2 (14.3) | 3 (5.1) | 3 (6.7) | 1 (7.1) | 4 (6.7) | 17 (37.8) | 4 (28.6) | 21 (35.6) | 21 (15.5) | 7 (16.8) | 28 (15.8) |
 No effect | 8 (17.8) | 4 (28.6) | 12 (20.3) | 11 (24.4) | 4 (28.6) | 15 (25.4) | 25 (42.4) | 5 (35.8) | 30 (50.8) | 44 (32.6) | 13 (30.9) | 57 (32.2) |
S. chromogenes (34) | ||||||||||||
 Severe effect | 2 (7.1) | 2 (33.4) | 4 (11.7) | 2 (7.1) | 0 | 2 (5.9) | 1 (3.6) | 1 (16.6) | 2 (5.9) | 5 (6.0) | 3 (16.7) | 8 (7.8) |
 Moderate effect | 24 (85.7) | 2 (33.4) | 26 (76.5) | 19 (67.9) | 5 (83.4) | 24 (70.6) | 1 (3.6) | 3 (50.0) | 4 (11.7) | 44 (52.4) | 10 (55.5) | 54 (53.0) |
 Slight effect | 1 (3.6) | 1 (16.6) | 2 (5.9) | 3 (10.7) | 0 | 3 (8.8) | 13 (46.4) | 1 (16.7) | 14 (41.2) | 17 (20.2) | 2 (11.1) | 19 (18.6) |
 No effect | 1 (3.6) | 1 (16.6) | 2 (5.9) | 4 (14.3) | 1 (16.6) | 5 (14.7) | 13 (46.4) | 1 (16.7) | 14 (41.2) | 18 (21.4) | 3 (16.7) | 21 (20.6) |
S. epidermidis (11) | ||||||||||||
 Severe effect | 0 | 1 (25.0) | 1 (9.1) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 (8.3) | 1 (3.0) |
 Moderate effect | 0 | 0 | 0 | 0 | 1 (25.0) | 1 (9.1) | 1 (14.3) | 1 (25.0) | 2 (18.2) | 1 (4.7) | 2 (16.7) | 3 (9.0) |
 Slight effect | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
 No effect | 7 (100) | 3 (75.0) | 10 (90.9) | 7 (100) | 3 (75.0) | 10 (90.9) | 6 (85.7) | 3 (75.0) | 9 (81.8) | 20 (95.3) | 9 (75.0) | 29 (88.0) |
S. simulans (14) | ||||||||||||
 Severe effect | 10 (100) | 3 (75.0) | 13 (92.8) | 3 (30.0) | 2 (50.0) | 5 (35.7) | 0 | 0 | 0 | 13 (43.4) | 5 (41.6) | 18 (42.9) |
 Moderate effect | 0 | 0 | 0 | 7 (70.0) | 2 (50.0) | 9 (64.3) | 0 | 0 | 0 | 7 (23.3) | 2 (16.7) | 9 (21.4) |
 Slight effect | 0 | 1 (25.0) | 1 (7.2) | 0 | 0 | 0 | 4 (40.0) | 3 (75.0) | 7 (50.0) | 4 (13.3) | 4 (33.4) | 8 (19.0) |
 No effect | 0 | 0 | 0 | 0 | 0 | 0 | 6 (60.0) | 1 (25.0) | 7 (50.0) | 6 (20.0) | 1 (8.3) | 7 (16.7) |