A uterocervical anomaly (Uterus bicorpor bicollis) in a mare, and the manual disruption of early bilateral pregnancies.
A developmental anomaly, resulting from partial segmental aplasia of the Mullerian ducts, was present in a Clydesdale mare. She had complete double cervices and a divided uterine body. In this mare, bilateral pregnancies were destroyed in sequence by squeezing them per rectum 25 and 29 days after insemination.
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New York State College of Veterinary Medicine, Cornell University, Ithaca, New York, USA.