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Table 3 Distribution and prevalence of pathogen DNAa isolated from 3,014 quarter milk samples of 756 cows

From: Presence of pathogen DNA in milk harvested from quarters is associated to changes in cows’ milk yield and composition

Group

Pathogen

At quarter level (n = 3,014)

At cow levelb(n = 756)

Average n. affected quartersc

n

%

n

%

Major

S. agalactiae

85

2.8

50

6.6

1.7

 

S. uberis

282

9.4

199

26.3

1.4

 

S. dysgalactiae

28

0.9

25

3.3

1.1

 

S. aureus

31

1.0

24

3.2

1.3

 

E. coli

13

0.4

13

1.7

1.0

 

Klebsiella spp.

9

0.3

9

1.2

1.0

Minor

CNS

813

27.0

395

52.2

2.1

Other

M. bovis

137

4.5

60

7.9

2.8

 

Mycoplasma spp.

6

0.2

6

0.8

1.0

 

Enterococcus + Lactococcus lactis ssp. lactis

30

1.0

27

3.6

1.1

 

Prototheca spp.

15

0.5

10

1.3

1.5

  1. aPathogens of the commercial kit 'Mastitis 4BDF'. CNS indicates the coagulase-negative staphylococci
  2. bPathogen DNA isolated in at least 1 quarter
  3. cQuarters per cow with pathogen DNA detected
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BMC Veterinary Research

ISSN: 1746-6148

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