Group

n =

Interval of days from calving to CIDR removal

Estrus

Patch

Visible

Palpation

Non visible

Visible

Doubtful

Negative

1

11

44.5 ± 8.3

18

27

55

0

0

100

2

11

43.9 ± 3.0

45

36

18

9

9

82

3

13

34.2 ± 4.5

46

31

23

8

0

92

4

13

41.4 ± 6.2

38

15

46

0

23

77

5

15

40.7 ± 12.1

69

0

31

6

6

88

Total

63

40.9 ± 6.8

43.4%

22.0%

34.6%

4.6%

7.7%

87.7%