Fig. 1From: Changes in plasma PLAC-1 concentration and its expression during early-mid pregnancy in bovine placental tissues – a pilot studyPLAC1 concentrations (ng/mg protein) in maternal blood plasma (a), as well as in the bovine placental tissues – foetal (b) and maternal (c) at different gestational stages (1st – 6th month of pregnancy) determined by ELISA. NP – non-pregnant cows. Different letters represent statistical significance at p < 0.05Back to article page