Concentrates were offered during the morning (7:00) and the
afternoon (18:00) milking and the daily intake of DM (DMI) was
individually registered on the basis of residuals. The trial lasted
7 weeks, after a 3 weeks adaptation period. All the animals were
weighed at the beginning and at the end of the experiment. Once a
week, milk samples from each individualewewere collected during
both milkings and then combined in a single sample according to
the morning and afternoon yield.