What does "red bag" delivery indicate in a pregnant mare?

"Red bag" delivery in a pregnant mare refers to the rupture of the chorioallantois, which is a serious condition that requires immediate attention. In this scenario, the presence of a red bag indicates that the placenta has detached before the foal is born, leading to a potentially compromised situation for both the mare and the foal.

During a normal foaling process, the amniotic sac and the chorioallantois (the outer membrane that surrounds the fetus) also rupture, a process that usually occurs simultaneously with the delivery of the foal. However, in the case of a red bag delivery, the chorioallantois ruptures instead, often seen as a red, fleshy membrane, and the foal is not yet delivered, risking its oxygen supply.

Recognizing a red bag delivery is crucial, as it requires swift intervention to assist in the birth and ensure the foal’s survival. Immediate steps can include delivering the foal quickly to prevent further complications and address any risks of inadequate oxygenation.

Understanding the implications of a red bag delivery is essential for anyone involved in equine care, particularly in a clinical or zoo setup, as the timely decision-making can have a significant impact on the health of