(A) Dry matter intake (kg/d) and (B) NEL intake (Mcal/d) on the day before the initiation of treatment (Pre); during treatment (d 1 to 4) while exposed to 1 of 4 treatments: ad libitum, 25% feed restriction (25FR), 50% feed restriction (50FR), and 50% of TMR replaced with wheat straw (50ST); and the 2 d after all cows returned to ad libitum feeding (Post 1, Post 2). a–dWithin day, means with different letters differ (P < 0.05).