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Table 4 Mastitis bacteria isolated in milk samples

From: Reproductive Performance, Udder Health, and Antibiotic Resistance in Mastitis Bacteria isolated from Norwegian Red cows in Conventional and Organic Farming

 

Conventional

Organic

Diagnosis

n

%

n

%

Bacteria negative

1746

84.5

1577

82.8

Staphylococcus aureus

68

3.3

64

3.4

CNS

167

8.1

200

10.5

Streptococcus dysgalactiaee

26

1.3

32

1.7

Streptococcusococcus uberis

25

1.2

11

0.6

Other Streptococcus spp.

4

0.2

5

0.3

Escherichia coli

0

-

3

0.2

Enterococcus ssp.

29

1.4

9

0.5

Others1

1

0.04

4

0.2

  1. 1 Corynebacterium, Proteus, Archanobachter pyogenes
  2. Milk samples at quarter level positive for mastitis bacteria in conventional and organic farming at the herd visit (n = 3971).