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Table 2 Calf serum total protein, gamma glutamyl transferase (GGT) and zinc sulphate turbidity (ZST) values in suckler beef calves sampled on 13 Irish suckler beef farms

From: Disease screening profiles and colostrum management practices on 16 Irish suckler beef farms

Farmer ID

No. calves sampled

Calf age at sampling* (days)

Total Protein* 1 (g/L)

GGT* 2 (U/L)

ZST* 3 (units)

1

7

7.1 (3.4)

52.9 (7.5)

284.7 (238.4)

20.1 (13.1)

2

8

6 (3.3)

52.5 (7.2)

161.4 (115.1)

26.1 (10.0)

3

8

6.2 (2.6)

61.3 (5.6)

229.1 (137.7)

36.7 (6.3)

4

6

7.0 (2.2)

51.7 (7.6)

175.7 (264.0)

17.0 (11.2)

5

6

4.3 (2.0)

57.1 (5.6)

216.2 (163.3)

33.8 (5.9)

6

5

10.2 (4.2)

62.3 (10.1)

147.6 (102.7)

34.2 (13.2)

7

7

9.3 (3.0)

52.7 (11.8)

140.1 (94.7)

19.7 (11.8)

8

5

11.6 (1.7)

61.9 (7.1)

179.0 (148.7)

34.8 (6.3)

9

5

11.0 (2.3)

57.5 (8.1)

77.4 (60.3)

29.4 (11.5)

10

4

3.3 (0.5)

68.4 (11.3)

539.8 (292.3)

38.5 (10.4)

11

7

5.7 (3.0)

62.0 (11.7)

267.6 (299.6)

29.1 (11.4)

12

6

9.5 (4.2)

55.2 (4.3)

266.8 (219.8)

28.8 (5.7)

13

8

6.5 (4.1)

51.2 (5.0)

156.5 (69.8)

26.5 (7.6)

Overall

82

7.4 (3.6)

56.8 (9.0)

211.6 (193.5)

28.3 (11.2)

  1. *Denotes herd mean (s.d.).
  2. 1Individual calf serum total protein < 52 g/L is an indicator of failure of passive transfer of colostral immunoglobulins (FPT) [22]. 2Individual calf GGT values < 50 U/L and 3ZST values < 20 units also indicate FPT [23]. 4In this study, an individual calf ZST value was used to define FPT.