Comparison of three devices for the automated detection of estrus in dairy cows

Chanvallon, Audrey; Coyral-Castel, Stéphanie; Gatien, Julie; Lamy, Jean-Michel; Ribaud, D.; Allain, Clément; Clement, Pierre; Salvetti, Pascal

doi:10.1016/j.theriogenology.2014.06.010

Cited by 44 publications

(32 citation statements)

References 40 publications

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“…Near-continuous observation of preparturient mares is extremely labour-intensive, and time requirements would be markedly reduced with automated monitoring systems. In cattle, automated monitoring and alert systems are used for oestrous detection (Chanvallon et al, 2014;Pennington, Albright, & Callahan, 1986;Roelofs, van Eerdenburg, Soede, & Kemp, 2005) and health management (Borchers, Chang, Tsai, Wadsworth, & Bewley, 2016;Müller & Schrader, 2003) and are also increasingly advocated for monitoring of cows before calving (Krieger et al, 2017;Marchesi et al, 2013;Ouellet et al, 2016). Monitoring devices in cattle are often made for long-term recordings and are fixed permanently on the animal whereas for birth alert, pedometers (Nishimura et al, 2017;Titler et al, 2015) or intravaginal sensors (Palombi et al, 2013) are used.…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

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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“…It has been shown that changes in the number of steps measured by a radiotelemetric pedometer functions as an index for the detection of estrus (Chanvallon et al., ; Roelofs, van Eerdenburg, Soede, & Kemp, ; Yoshioka, Ito, & Tanimoto, ). Moreover, it is reported that when AI is performed at the optimal time as calculated based on the onset of the increase in steps (pedometer estrus), it yields an appropriate conception rate in dairy cows (Maatje, Loeffler, & Engel, ).…”

Section: Introductionmentioning

confidence: 99%

Efficiency of a pedometer device for detecting estrus in standing heat and silent heat in Japanese Black cattle

Hojo

Sakatani

Takenouchi

2018

Animal Science Journal

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The usefulness of a radiotelemetric pedometer for estrus detection in standing (ST) heat, or in silent heat without ST events, but in which ovulation is observed, in Japanese Black cattle was investigated. The duration of an increase in steps in ST heat was 11.8 ± 1.3 hr, and it was similar to that of ST events (duration: 10.1 ± 0.8 hr). Even in silent heat, the change pattern and the duration (11.6 ± 0.2 hr) of the period with an increase in steps during estrus were not different compared with ST heat. When artificial insemination (AI) was performed at 15.5 ± 0.6 hr from the onset of estrus detected by the pedometer in ST heat cases, the conception rate was 57.1% (8/14). Furthermore, fertility in cattle that underwent silent heat was evaluated. When AI was performed at 14.4 ± 2.0 hr from the onset of estrus detected by the pedometer, the conception rate was 60% (3/5) in silent heat cases. The overall results suggest that the radiotelemetric pedometer is a valid device for detecting estrus and it can even detect silent heat in Japanese Black cattle. Moreover, even silent heat cattle are fertile when AI is performed at the appropriate time.

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“…Due to low personal stakes and a lack of commitment, employees at corporate dairies may go about their work less carefully than family-farm managers (Uetake, 2013). On the other hand, large dairies may be able to invest in facilities and technologies for animal monitoring (Svensson and Jensen, 2007;Borderas et al, 2009;Rutten et al, 2013;Chanvallon et al, 2014), education of staff (Schuenemann et al, 2013), advisory tools (Vasseur et al, 2010b) and special herd health services.…”

Section: Poor Stockmanshipmentioning

confidence: 99%

Key issues in the welfare of dairy cattle

Hultgren¹

2017

Burleigh Dodds Series in Agricultural Science

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Comparison of three devices for the automated detection of estrus in dairy cows

Cited by 44 publications

References 40 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

Efficiency of a pedometer device for detecting estrus in standing heat and silent heat in Japanese Black cattle

Key issues in the welfare of dairy cattle

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