Med. Weter. 77 (01), 9-15, 2021
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| ROLAND KOZDROWSKI, KORNELIA OMYŁA |
| Early embryonic death in mares: The causes, diagnosis and prevention |
| The aim of this study was to describe the most important causes of early embryonic death (EED) in mares, as well as diagnostic methods and possible prevention procedures. Ageing and subclinical endometritis are described and discussed in detail as the most important causes of EED in mares. EED is also discussed in relation to foaling heat breeding and the time of insemination or natural cover. Other causes of EDD discussed in the study are progesterone deficiency due to primary corpus luteum dysfunction, mare’s weight loss, chromosomal abnormality and abnormal embryonic vesicle fixation. Positive effects can be achieved through maintaining ideal body condition, diagnosis and treatment of subclinical endometritis, appropriate care of the mare in the postpartum period, avoiding mating those mares that may ovulate before the 10th day after delivery, as well as monitoring the genital tract after mating for persistent post-breeding induced endometritis. Administration of altrenogest should be reserved for those cases in which endometritis has been ruled out as the cause of EED. |
| Keywors: mare, early embryonic death, diagnosis, prevention |