Fig. 5.

The gene expression levels of MX2 in peripheral blood leukocytes obtained from cows on 14, 15, 16, 17 and 18 d after artificial insemination (AI). Based on the day of return of estrus, the cows were divided into three groups, pregnant (n = 5), early embryonic mortality (EEM; n = 5) and late embryonic mortality (LEM; n = 5). a Data are means ± SEM of five cows and are expressed as relative ratios of the mRNAs to GAPDH. Values significantly different from the value on 14 d after AI are shown with an asterisk (*P < 0.05). b Each line represents the data for individual cows, and the figure in parentheses indicates the day of the return of estrus in EEM and LEM cows