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Table 4 The mean values (± SE) of SCC, milk yield, milk fat, protein and total solids for dairy cattle infected with Mycoplasma and other mastitis pathogens (in individual cow-testing points)

From: Evaluation of effects of Mycoplasma mastitis on milk composition in dairy cattle from South Australia

 

Group

Frequency

Milk yield (litre/day)

Fat percentage

Protein percentage

Total milk solids

SCCx103cell/mL

Tested

1

Mycoplasma bovis

11

32.4 ± 3.73

3.4 ± 0.26

3.4 ± 0.09

2.1 ± 0.20

255.1 ± 140.07

2

Acholeplasma laidlawii

28

32.4 ± 2.33

3.3 ± 0.16

3.4 ± 0.06

2.1 ± 0.13

216.1 ± 87.79

3

M. bovirhinis

13

30.0 ± 3.43a

3.3 ± 0.24

3.3 ± 0.09

2.0 ± 0.19

376.2 ± 128.85a

4

Mycoplasma co-infection

119

29.0 ± 1.13A

3.1 ± 0.08a

3.4 ± 0.03A

1.9 ± 0.06A

389.3 ± 42.58A

5

Conventional mastitis pathogens

58

29.9 ± 1.57a

3.2 ± 0.11

3.3 ± 0.04a

1.9 ± 0.09A

550.3 ± 59.00A

6

Mycoplasmas and conventional pathogens

53

27.9 ± 1.79A

3.3 ± 0.12

3.4 ± 0.04A

1.8 ± 0.11A

611 ± 12.08A

Total

282 (3.7%)

 

Non tested

7

High SCC

1146

29.2 ± 0.36A

3.6 ± 0.02A

3.4 ± 0.01A

2.0 ± 0.02A

960.7 ± 13.72A

8

Low SCC

6181

34.4 ± 0.15

3.4 ± 0.01

3.3 ± 0.00

2.2 ± 0.01

67.3 ± 5.90

Total

7327 (96.3%)

 
  1. Lower case superscripts indicate statistical difference within column of P < 0.05 or capital superscripts indicate statistical difference within column of P < 0.001