Supplementary material - Prolonged luteal phase in Holstein lactating cows is not only due to pregnancy losses: a randomized controlled trial

Characteristics of the 876 inseminations with either artificial or placebo insemination, and of the 380 excluded inseminations due to no estrus on the day of insemination, or pregnancy following AI. Descriptive statistics (95% confidence intervals) are either proportion in each category for discrete variables or mean for continuous variables.