Table 1.

Individual data on BW, hay, milk and concentrate intake, rumination time, and correlations between observed and predicted rumination times

			Intake, kg DM/d
Animal	Age (d)	BW (kg)	Hay1	Hay (%BW)	Milk1	Concentrate1	RT2, h/12 h	RF03	RF10	RF5
1	36	52	0.16	0.32	0.69	0.06	3.70	0.83	0.86	0.97
2	40	49	0.12	0.25	0.59	0.17	3.27	0.87	0.97	0.99
3	39	53	0.08	0.15	0.70	0.05	1.78	0.73	0.93	0.94
4	62	68	0.13	0.19	0.85	0.76	1.57	0.60	0.94	0.92
5	62	106	0.32	0.30	2.04	0.34	1.85	0.73	0.98	0.98
6	58	75	0.17	0.22	0.99	0.70	3.22	0.85	0.93	0.98
7	63	70	0.05	0.07	0.93	0.54	1.98	0.63	0.83	0.94
8	53	80	0.34	0.42	1.01	0.45	2.42	0.69	0.98	0.98
9	33	63	0	0	1.66	0.02	2.02	0.79	0.94	0.99
10	36	52	0.06	0.12	0.70	0.20	2.83	0.89	0.83	0.93
Average	48.2	66.8	0.14	0.20	1.02	0.33	2.46	0.76	0.92	0.96

¹Total amount of milk replacer, hay and concentrate consumed on the video observation day (0001–2400 h).

²RT = rumination time observed on video (0600–1800 h).

³Concordance correlation coefficient (R) between observed and predicted rumination time (F0 = including raw data of the RWS (no filtering); F10 = excludes rumination events lasting less than 10 min as recoded by the RWS; F5 = excludes rumination events lasting less than five min as recoded by the RWS).