<b>Supplementary Table 1. Comparison of milk progesterone (P4) concentrations</b><b> </b><b>(</b><b>mean ± SEM</b><b>)</b><b> </b><b>during the first luteal phase (FLP) of early vs prolonged SCK (SCK vs SCK_Pro), and early vs prolonged CK (CK vs CK_P

<b>Supplementary Table 1. Comparison of milk progesterone (P4) concentrations</b><b> </b><b>(</b><b>mean ± SEM</b><b>)</b><b> </b><b>during the first luteal phase (FLP) of early vs prolonged SCK (SCK vs SCK_Pro), and early vs prolonged CK (CK vs CK_Pro) cows</b>. Milk β-hydroxybutyrate (BHB) and P4 concentrations were measured by the automated real-time analyzer Herd Navigator (Lattec I/S) of the voluntary milking system (DeLaval Inc.). D0 = the first day when the milk P4 levels raised above 5 ng/mL cutoff. There was no statistical difference between SCK vs SCK_Pro and CK vs CK_Pro (<i>P</i> &gt; 0.05) on the days analyzed.