completed each week. A weekly pen composite sample was created based on an average weighted weekly milk production per cow. Composite samples were submitted to DairyOne (Ithaca, NY) for analysis of protein, fat, lactose, and MUN by Milkoscan (Foss Electric, Hillerød, Denmark), and SCC were determined by the Fossomatic 5000 (Foss Electric). The equation used for FCM was as follows: 3.5% FCM = [0.4255 × milk (lb)] + [16.425 × (fat%/100) × milk (lb)]. Energy-corrected milk was calculated as follows: ECM = (kg of milk × 0.327) + (kg of milk fat × 12.95) + (kg of protein × 7.2) (Shirley, 2006).