Equine Abortions In The 2016-2019 Breeding Seasons

There are many causes for abortions in mares and examining the placenta and the fetus may offer clues as to the cause of that particular foal loss, as well as help identify infectious causes of abortion. These can then help determine trends over multiple years and predict future causes of abortion, as well as identify changes in disease prevalence over time.

Looking at the 2016 through 2019 breeding seasons in Central Kentucky, general trends have stayed the same, with placentitis being the most-common cause of abortions each season. Generally, non-infectious causes of abortion, like twins, fetal or maternal stress and umbilical cord torsion, are more-common that bacterial, fungal or viral infections. The exception is 2016, where 145 cases of nocardioform placentitis were seen.

There was an increase, which may be normal variation, in abortions caused for a variety of reasons in 2018 and 2019; these abortions could have been caused by a range of conditions, including Potomac horse fever, fetal organ necrosis, congenital malformations and others.

Monitoring for and intervening for early placentitis and vaccinating for infectious diseases that cause abortions (like leptospirosis and EHV-1) may decrease these instances of abortion. This would correspond with the increase in abortions without an identifiable cause. Researchers will continue to monitor these trends to determine if the variation between years is of significance.

Read more at Equine Disease Quarterly.

The post Equine Abortions In The 2016-2019 Breeding Seasons appeared first on Horse Racing News | Paulick Report.

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