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Table 1 Herd size, average herd yield, calving pattern of the 12 herds in the study

From: A descriptive epidemiological study of mastitis in 12 Irish dairy herds

Herd

Number of cows

Milk yield (litres)

Calving pattern*

A

52

7200

A

B

55

5400

S

C

44

5850

S

D

125

6075

A

E

54

6030

S

F

57

5625

S

G

56

7515

A

H

67

6075

S

I

140

7200

A

J

85

6057

S

K

57

6750

S

L

49

7425

A

  1. *Calving pattern: S - spring; A - split calving (spring and autumn).