Table 35.

Relationships between NDF provided in the diet, time spent ruminating and extent of rumination, based on the EKE estimates for the ‘average’ animal and assuming a linear relationship between time spent ruminating and fibre content of the daily diet (kg NDF/day). The values estimated via EKE are shown in the grey cells; the remaining values were estimated via linear interpolation

NDF (kg)/day	Corresponding grams of hay (DM), assuming 60% NDF content (kg)	% time spent ruminating per day	Number of hours
0.19	0.32	10	2.4
0.5	0.83	18	4.2
0.7	1.17	23	5.4
1	1.67	30	7.2