Table 1.

Fitted frequency values. Data are fit to two models, the first where shedding occurs at fixed frequency throughout the observed period (one-phase or 1P) and the second where there is a shedding time delay until the first measured occurrence, after which shedding occurs at fixed frequency (two-phase or 2P). The likelihood ratio test is used to identify when the 2P model is significantly better (in bold, p<0.10). Frequencies shown are respectively the fixed frequency and the fixed value after the time delay (95% CIs in brackets). CBD indicates ‘cannot be determined’, i.e. calves for which the two-phase model is clearly more appropriate, but no mean frequency could be determined.

ID number	model	frequency	LTR Test
1	two-phase	2.56 (0.56, 10.7)	5.9
2	two-phase	1.25 (0.79, 1.88)	3.9
3	CBD
4	two-phase	2.30 (1.58, 3.33)	3.9
5	one-phase	0.0 (0.0, 0.24)
6	two-phase	0.45 (0.28, 0.69)	2.7
7	CBD
8	CBD
9	two-phase	1.1 (0.77, 1.5)	3.6
10	one-phase	0.12 (0.06, 0.22)	0.7
11	one-phase	0.27 (0.16, 0.41)	1.4
12	one-phase	0.27 (0.16, 0.41)	1.1