"In recent years, mares are being diagnosed pregnant with the ultrasound by day 15 of gestation. Before the common use of the ultrasound, early embryonic deaths would be mistaken for failure of conception followed by silent heat. Many of these early embryonic deaths have genetic or chromosomal defects that lead to improper development of the embryo and subsequent rejection by the dam."
Aberraciones cromosomicas y falla en progesterona por el cuerpo luteo son las causas mas frecuentes de las mal llamadas "absorciones" del saco gestacional...eso no se reconocia antes de que se comenzara la ecografia equina para detectar embarazos a los 15 dias...son estadisticas nuevas que se han recopilado luego de la introduccion de la ecografia equina...