However at02:45 h, a higher (P < 0.01) proportion of CED cows were lying (versus standing) comparedwith Control cows (68.6 versus 53.7 cows/100 cows), which is an indicator of reduced heatstress. Intake of DM (25.3 kg/d) and whole tract digestibility of CP (703 g/kg) and aNDF(510 g/kg) did not differ between treatments.