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Table 3 Distribution of bacterial isolates [number (%)] from 285 milk samples collected from dairy cows in herds in which parlour hygiene was either adequate or suboptimal

From: Prevalence of pathogens causing subclinical mastitis in 15 dairy herds in the Republic of Ireland

Farm

No. of samples

No. of growth

Staph. aureus

Strep. uberis

Strep. agalactiae

Strep dysgalactiae.

Mixed

Coagulase-negative Staph.

Coliforms

Minor pathogens

Adequate parlour hygiene

         

C

13

3 (23)

0

9 (69)

0

0

0

0

1 (8)

0

D

10

2 (20)

2 (20))

4 (40)

0

0

1 (10)

0

0

1 (10)

G

6

3 (50)

1 (16)

1 (16)

0

0

1 (16)

0

0

0

H

6

1 (16)

3 950)

0

0

0

1 (16)

1 (16)

0

0

N

11

3 (27)

2 (18)

0

0

2 (18)

1 (9)

1 (9)

0

2 (18)

O

19

7 (37)

0

0

0

0

1 (16)

4 (5)

3 (21)

4 (21)

Total

65

19 (29)

8 (12)

14 (22)

0

2 (3)

5 (8)

6 (9)

4 (6)

7 (11)

Suboptimal parlour hygiene

         

A

36

14 (39)

1 (3)

13 (36)

0

1 (3)

0

1 (3)

0

6 (18)

B

12

0

6 (50)

0

0

0

4 (33)

1 (13)

1 (13)

0

E

33

5 (15)

10 (30)

6 (18)

0

0

2 (6)

6 (18)

0

4 (12)

F

20

3 (15)

11 (55)

2 (10)

0

0

0

3 (15)

0

1 (5)

I

31

13 (42)

5 (16)

8 (26)

0

0

0

0

2 (6)

3 (10)

J

37

14 (38)

7 (19)

7 (19)

0

2 (5)

2 (5)

1 (3)

2 (5)

2 (5)

K

24

6 (25)

7 (29)

0

0

0

0

8 (33)

0

3 (13)

L

16

3 (19)

6 (18)

3 (19)

0

1 (16)

1 (6)

0

0

2 (13)

M

11

0

0

0

7 (64)

0

2 (18)

0

0

2 (18)

Total

220

58 (26)

53 (24)

39 (18)

7 (3)

4 (2)

11 (5)

20 (9)

5 (2)

23 (10)

Total

285

77 (28)

61 (21)

52 (18)

7 (2)

6 (2)

16 (6)

27 (9)

9 (3)

28 (10)