Survey on the course of puerperium and on fertility after implementation of the iVET® birth monitoring system in heifers

Marien, H.; Gundling, Natascha; Hasseler, W.; Feldmann, Reinhold; Hennigsen, G.; Herzog, Kathrin; Hoedemaker, Martina

doi:10.15407/animbiol21.02.042

Cited by 2 publications

(4 citation statements)

References 6 publications

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“…Our evaluation of the calving ease showed that 79.2% of the animals with a calving ease score 3 showed severe injuries of the soft birth canal. Additionally, animals with a retention time of the iVet ® -sensor of more than 24 h needed severe calving assistance statistically significantly more often [ 13 ]. To our knowledge, to date, only a few studies have dealt with injuries after dystocia in heifers in detail, even though it is well known that heifers often require assistance at calving [ 8 ].…”

Section: Discussionmentioning

confidence: 99%

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Do Calving-Related Injuries of the Vestibulum Vaginae and the Vagina Affect the Reproductive Performance in Primiparous Dairy Cows?

Marien

Gundling

Hasseler³

et al. 2023

Veterinary Sciences

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The aim of this study was to investigate the influence of calving-related injuries of the vestibulum vaginae and the vagina on fertility measures in heifers. German Holstein heifers (n = 236) were checked for vestibulum vaginae and vaginal injuries. These were scored according to localization, depth and length. The healing process was assessed until day 42 post partum. Calving ease and the occurrence of metritis and endometritis were evaluated. In 160 heifers, the following fertility measures were calculated to assess the reproductive performance of heifers: mean interval from calving to first insemination, mean days open, mean interval from first insemination to conception, mean calving interval, mean pregnancy index, percentage of animals pregnant at 200 days p.p., and first service conception rate. On the one hand, dystocia was a risk factor for injuries of the soft birth canal, and, on the other hand, those injuries were a risk factor for metritis and endometritis. In this study, calving-related injuries of the vestibulum vaginae and the vagina had no statistically significant effect on the reproductive performance of heifers. One reason for this outcome was probably the overall good healing tendencies of those injuries in heifers.

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Section: Discussionmentioning

confidence: 99%

“…Additionally, the iVet ® -sensor was an important risk factor for infections of the uterus, because animals with a retention time of the sensor of more than 24 h developed significantly more often retained fetal membranes, metritis at day 10 p.p., and endometritis at day 21 p.p. [ 13 ].…”

Section: Discussionmentioning

confidence: 99%

Do Calving-Related Injuries of the Vestibulum Vaginae and the Vagina Affect the Reproductive Performance in Primiparous Dairy Cows?

Marien

Gundling

Hasseler³

et al. 2023

Veterinary Sciences

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“…There are also two types of intravaginal sensors: namely physical (light) and temperature sensors. Each of them has to be inserted aseptically into the vagina until contact with the external cervical os by a gloved hand [ 94 , 100 ] or a vaginal applicator [ 56 , 57 , 61 ].…”

Section: Detection Of the Expulsion Of Sensors During Appearing Allan...mentioning

confidence: 99%

“…When the intravaginal device remained inside the vaginal canal for two consecutive weeks, Palombi et al [ 94 ] observed no adverse effects, and the animals did not exhibit any discomfort or vaginal discharge. In contrast, Henningsen et al [ 98 ] and Marien et al [ 100 ] reported that the iVET ® birth monitoring system caused a significantly higher number of injuries and extreme calving difficulties. The injuries were more severe, the healing progressed more slowly, and these animals developed endometritis significantly more frequently than the control group.…”

Section: Detection Of the Expulsion Of Sensors During Appearing Allan...mentioning

confidence: 99%

Accuracy to Predict the Onset of Calving in Dairy Farms by Using Different Precision Livestock Farming Devices

Szenci

2022

Animals

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Besides traditional methods such as evaluation of the external preparatory and behavioral signs, which even presently are widely used also in large dairy farms, there are several new possibilities such as measuring body (intravaginal, ventral tail-base surface, ear surface, or reticulo-ruminal) temperature, detecting behavioral signs (rumination, eating, activity, tail raising) or detecting the expulsion of the device inserted into the vagina or fixed to the skin of the vulva when allantochorion appears in the vulva to predict the onset of the second stage of calving. Presently none of the single sensors or a combination of sensors can predict the onset of calving with acceptable accuracy. At the same time, with the exception of the iVET® birth monitoring system, not only the imminent onset of calving could be predicted with high accuracy, but a significantly lower prevalence rate of dystocia, stillbirth, retained fetal membranes, uterine diseases/clinical metritis could be reached while calving-to-conception interval was significantly shorter compared with the control groups. These results may confirm the use of these devices in dairy farms by allowing appropriate intervention during calving when needed. In this way, we can reduce the negative effect of dystocia on calves and their dams and improve their welfare.

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Survey on the course of puerperium and on fertility after implementation of the iVET® birth monitoring system in heifers

Cited by 2 publications

References 6 publications

Do Calving-Related Injuries of the Vestibulum Vaginae and the Vagina Affect the Reproductive Performance in Primiparous Dairy Cows?

Do Calving-Related Injuries of the Vestibulum Vaginae and the Vagina Affect the Reproductive Performance in Primiparous Dairy Cows?

Accuracy to Predict the Onset of Calving in Dairy Farms by Using Different Precision Livestock Farming Devices

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