Parturition in horses is dominated by parasympathetic activity of the autonomous nervous system

Nagel, Christina; Erber, R.; Ille, Natascha; Lewinski, Mareike von; Aurich, Jörg; Möstl, Erich; Aurich, Christine

doi:10.1016/j.theriogenology.2014.03.015

Cited by 32 publications

(27 citation statements)

References 36 publications

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“…Increasing restlessness in parturient mares was not associated with an increase in heart rate, confirming previous studies (Nagel et al., , ) on heart rate before and during physiological parturition in mares. In contrast, restlessness shortly before delivery in cows coincides with an increased heart rate (Kovács et al., ; Nagel et al., ).…”

Section: Discussionsupporting

confidence: 90%

Detection of the time of foaling by accelerometer technique in horses (Equus caballus)—a pilot study

Hartmann

Lidauer²,

Aurich

et al. 2018

Reprod Domestic Animals

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Observation of preparturient mares is labour-intensive and time requirements would be reduced with automated monitoring systems. Recently, small-size accelerometers have become available. We followed the hypothesis that increased restlessness in mares shortly before the expulsive stage of labour can be detected with such accelerometers. Accelerometers were attached medioventrally to the halter of eight late pregnant mares. To evaluate an influence of accelerometer position, in one mare two additional accelerometers were attached close to the mandibular and atlanto-occipital joints. Accelerometers were programmed to send 600 signals/min (10 Hz). Signals were recorded continuously and, for evaluation, four intervals of 30-min duration on day 4 before foaling and the last 2 hr before rupture of the allantochorion at foaling were selected. Signal detection was influenced by position of the accelerometer on the mares' halter. The highest signal detection rate was reached with the accelerometer in the lateral and dorsal position but differences of accelerations measured by the system differed neither between sensor positions nor between time intervals 4 days before foaling. Differences of accelerations increased from 120 min before foaling until birth of the foal (p < 0.001) and this increase was most pronounced during the last 30-20 min before birth of the foal (p < 0.001). Technical improvements and a foaling specific algorithm are required to improve the accuracy to predict foaling. Even if this preliminary study included only a small number of mares, results demonstrate that accelerometers could be an important component of birth alert systems in horses in the future.

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Section: Discussionsupporting

confidence: 90%

Detection of the time of foaling by accelerometer technique in horses (Equus caballus)—a pilot study

Hartmann

Lidauer²,

Aurich

et al. 2018

Reprod Domestic Animals

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“…sports animals), transport and lairage [14] in horses but there are no data on plasma catecholamine concentrations in donkeys. The concentrations we found in Martina Franca donkeys are similar to those reported in resting horses [5,9,15,16]. Fowden et al [17] studied plasma catecholamine concentration variation in newborn pony foals and found that after birth adrenaline and noradrenaline concentrations are over 3000 ng/L and they decreased within 6-8 h to basal concentrations of 200 ng/L, similar to those observed in donkey in the current paper.…”

Section: Discussionsupporting

confidence: 89%

“…However, donkeys employed in onotherapy are handled immediately after weaning. Although a jugular catheter was inserted at least 12 h before the blood sampling and the younger animals did not show any particular fright or fear behaviour in the [1,21] in order to prepare the body for a "fight-orflight" reaction [15]. Catecholamines also play a role in the body's adjustment to mental stress [22].…”

Section: Discussionmentioning

confidence: 99%

Survey on basal blood plasma catecholamine concentrations in Martina Franca donkey (Equus asinus)

Palo¹,

Maggiolino²,

Ceci³

et al. 2018

Equine Veterinary Journal

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“…Mares give birth in a state of relaxation (Nagel et al, 2014). However, stress responses in the foal may differ from the parturient mare.…”

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confidence: 99%

Heart rate and salivary cortisol concentrations in foals at birth

Nagel¹,

Erber²,

Ille

et al. 2015

The Veterinary Journal

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Parturition in horses is dominated by parasympathetic activity of the autonomous nervous system

Cited by 32 publications

References 36 publications

Detection of the time of foaling by accelerometer technique in horses (Equus caballus)—a pilot study

Detection of the time of foaling by accelerometer technique in horses (Equus caballus)—a pilot study

Survey on basal blood plasma catecholamine concentrations in Martina Franca donkey (Equus asinus)

Heart rate and salivary cortisol concentrations in foals at birth

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