Assessment for Predicting Parturition in Mares Based on Prepartum Temperature Changes Using a Digital Rectal Thermometer and Microchip Transponder Thermometry Device

Korosue, Kenji; Murase, Harutaka; Sato, Fumio; Ishimaru, Mutsuki; Endo, Yoshiro; Nambo, Yasuo

doi:10.1292/jvms.11-0497

Cited by 11 publications

(4 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Korosue et al . [ 8 ] reported a specificity of 77% for days 1–5 before parturition and a sensitivity of 71% on the evening before parturition for internal body temperature measured using a microchip implanted in the neck. Auclair-Ronzaud et al .…”

Section: Discussionmentioning

confidence: 99%

“…Korosue et al [8] reported a specificity of 77% for days 1-5 before parturition and a sensitivity of 71% on the evening before parturition for internal body temperature measured using a microchip implanted in the neck. Auclair-Ronzaud et al [9], using a microchip implanted in the neck, achieved a sensitivity of 96.9% and a specificity of 95% when comparing the average temperature of the 12 h before parturition to the temperatures from the preceding days at the same time of day.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, continuous in-person birth monitoring is not feasible in most cases. Alternative methods for predicting the time of birth include measuring the body temperature of the mare [ 8 , 9 ] and analyzing mammary secretions. However, mammary secretion analysis is more beneficial for predicting when a mare will not foal [ 10 , 11 ], and both methods are more helpful in predicting the day of birth than the exact onset of birth.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigating the suitability of a transponder-based birth monitoring system attached to the vulva of a mare

Lindinger,

Wehrend

2023

Vet World

View full text Add to dashboard Cite

Background and Aim: In horse breeding, birth monitoring is an important factor in minimizing losses during parturition. Although different birth monitoring systems are available for this purpose, the current literature lacks systematic suitability analyses. This study aimed to address this gap in the literature. In order to achieve this, we examined a large number of foaling mares to assess the suitability of a transponder-based birth monitoring system attached to the vulva. Materials and Methods: Seventy warmblood mares were observed during foaling, and 86 foals were born during the foaling seasons of 2021 and 2022. Video surveillance in the foaling stable provided video recordings of births. This allowed the opportunity to assess the birth monitoring system’s reporting accuracy. The exact times and reasons for each alarm were documented and the proportions of correctly detected births, false alarms, and unrecognized births were calculated. Results: Overall, 96.5% of foalings were correctly detected using the birth monitoring system, with a sensitivity rate of 96% and a specificity rate of 91%. False alarms were primarily caused when a mare rubbed her tail against the stable walls. Conclusion: These data suggest that the tested transponder is well suited for monitoring the birth of mares. However, it is recommended that this method should be used in combination with other birth monitoring methods because not all births were detected correctly. Keywords: birth alarm, mare, parturition, transponder system.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigating the suitability of a transponder-based birth monitoring system attached to the vulva of a mare

Lindinger,

Wehrend

2023

Vet World

View full text Add to dashboard Cite

show abstract

“…In cattle [7], sheep [8] and dogs [9], body temperature has been shown to be a relevant indicator of impending parturition. Several studies also reported that body temperature decreases just before foaling in mares [10][11][12]. However, examination of body temperature is not commonly used in the field for predicting time of foaling.…”

Section: Introductionmentioning

confidence: 99%

Detection of foaling using a tail-attached device with a thermistor and tri-axial accelerometer in pregnant mares

Aoki,

Shibata,

Violin

et al. 2023

PLoS ONE

View full text Add to dashboard Cite

It is desirable to attend to the mare at the time of foaling in order to assist fetal delivery and prevent complications. The early detection of the onset of labor is an important issue for the equine industry. The purpose of this study was to examine the applicability of a sensor for foaling detection using the data of surface temperature (ST), roll angle (rotation about the y-axis) and y-axis (long axis of the tail) acceleration which were collected from a multimodal device attached to the ventral tail base of the mare. The data were collected every 3 minutes in 17 pregnant mares. Roll angle differences from the reference values and the mare’s posture (standing or recumbent) confirmed by video were compared and associated. Cohen’s kappa coefficient was 0.99 when the threshold was set as ± 0.3 radian in roll angle differences. This result clearly showed that the sensor data can accurately distinguish between standing and recumbent postures. The hourly sensor data with a lower ST (LST < 35.5°C), a recumbent posture determined by the roll angle, and tail-raising (TR, decline of 200 mg or more from the reference value in y-axis acceleration) was significantly higher during the last hour prepartum than 2−120 hours before parturition (P < 0.01). The accuracy of foaling detection within one hour was verified using the following three indicators: LST; lying down (LD, change from standing to recumbent posture); and TR. When LST, LD and TR were individually examined, even though all indicators showed that sensitivity was 100%, the precision was 13.1%, 8.1% and 2.8%, respectively. When the data were combined as LST+LD, LST+TR, LD+TR and LST+LD+TR, detection of foaling improved, with precisions of 100%, 32.1%, 56.7% and 100%, respectively. In conclusion, the tail-attached multimodal device examined in this present study is useful for detecting foaling.

show abstract

The use of percutaneous thermal sensing microchips for non-invasive measurement of body temperature in foals during summer seasons in a subtropical region

Kang

Sole‐Guitart

Mellor

et al. 2022

animal

View full text Add to dashboard Cite

Assessment for Predicting Parturition in Mares Based on Prepartum Temperature Changes Using a Digital Rectal Thermometer and Microchip Transponder Thermometry Device

Cited by 11 publications

References 19 publications

Investigating the suitability of a transponder-based birth monitoring system attached to the vulva of a mare

Investigating the suitability of a transponder-based birth monitoring system attached to the vulva of a mare

Detection of foaling using a tail-attached device with a thermistor and tri-axial accelerometer in pregnant mares

The use of percutaneous thermal sensing microchips for non-invasive measurement of body temperature in foals during summer seasons in a subtropical region

Contact Info

Product

Resources

About