Markers of pregnancy loss in Holstein heifers: insights from cervical interferon-stimulated gene mRNA, pregnancy-associated glycoproteins, and progesterone concentrations.
Pregnancy loss during the first month of gestation remains a major limitation to reproductive efficiency in dairy cattle, yet the biological stage at which losses occur after the onset of conceptus-derived signaling remains poorly understood in nulliparous heifers. We evaluated cervical interferon-stimulated gene (ISG1...