Pregnancy-associated glycoprotein levels in pregnant goats inoculated with Toxoplasma gondii or Listeria monocytogenes: a retrospective study

The pregnancy-associated glycoprotein (PAG) concentration profiles of goats that had been experimentally inoculated with either Toxoplasma gondii or Listeria monocytogenes are described. All goats were examined regularly by ultrasonography. In T. gondii-infected females (n = 5), a slow decrease of PAG was observed throughout a period of 55 to 74 d after inoculation. Afterwards, the goats either aborted (n = 4) or kidded 1 dead and 1 weak fetus (n = 1). In L. monocytogenes-infected females (n = 8), a marked decrease of PAG was observed from the day of inoculation. Abortion occurred within 9 to 11 d post inoculation (n = 7). Only 1 goat kidded a healthy fetus.