Pregnancy outcome is influenced by luteal area during diestrus before successful insemination but not by milk production level

Berger, H.; Lietzau, M.; Tichy, Alexander; Herzog, Kathrin

doi:10.1016/j.theriogenology.2017.04.020

Cited by 10 publications

(10 citation statements)

References 24 publications

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“…We found that, 31–35 days after insemination, cows with higher progesterone levels in their milk had a statistically significant higher probability of pregnancy success. According to Berger et al [ 10 ], the luteal area and progesterone concentration were greater in pregnant cattle compared with those in open cattle. The overall mean milk progesterone concentration in pregnant cattle did not significantly differ from that in non-pregnant animals, but there was a strong quadratic relationship between both low and high milk progesterone concentrations associated with reduced conception rates.…”

Section: Discussionmentioning

confidence: 99%

Dynamic Changes in Progesterone Concentration in Cows’ Milk Determined by the At-Line Milk Analysis System Herd NavigatorTM

Antanaitis

Malašauskienė

Televičius

et al. 2020

Sensors

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The aim of the current instant study was to evaluate relative at-line milk progesterone dynamic changes according to parity and status of reproduction and to estimate the relationship with productivity in dairy cows by at-line milk analysis system Herd NavigatorTM. According to the progesterone assay, experimental animals were divided into three periods: postpartum, after insemination, and pregnancy. In the first stage of the postpartum period, progesterone levels in milk were monitored every 5 days. This period of reproductive cycle recovery was followed for 30 days (days 0–29). The second stage of the postpartum period (30–65 days) lasted until cows were inseminated. In the period (0–45 days) after cow insemination, progesterone levels were distributed according to whether or not cows became pregnant. For milk progesterone detection, the fully automated real-time progesterone analyzer Herd NavigatorTM (Lattec I/S, Hillerød, Denmark) was used in combination with a DeLaval milking robot (DeLaval Inc., Tumba, Sweden). We found that an at-line progesterone concentration is related to different parities, reproductive statuses, and milk yield of cows: the 12.88% higher concentration of progesterone in milk was evaluated in primiparous cows. The average milk yield in non-pregnant primiparous cows was 4.64% higher, and in non-pregnant multiparous cows 6.87% higher than in pregnant cows. Pregnancy success in cows can be predicted 11–15 days after insemination, when a significant increase in progesterone is observed in the group of pregnant cows.

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Section: Discussionmentioning

confidence: 99%

Dynamic Changes in Progesterone Concentration in Cows’ Milk Determined by the At-Line Milk Analysis System Herd NavigatorTM

Antanaitis

Malašauskienė

Televičius

et al. 2020

Sensors

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“…Nevertheless, the time and costs associated with analyzing concentrations of progesterone are major drawbacks to it being regularly used in reproductive management. Due to the speed and reliability of conventional B-mode ultrasonography, this technique is commonly used to evaluate the presence and size of a CL as an estimate of its function, since CL diameter (Spell et al, 2001;Velho et al, 2021) and CL area (Berger et al, 2017; have been associated with circulating concentrations of progesterone. However, this correlation is reduced during luteolysis as the rates of decrease in circulating concentrations of progesterone are greater than the decrease in CL size (Kastelic et al, 1990;Assey et al, 1993).…”

Section: Luteal Blood Perfusionmentioning

confidence: 99%

Applied Use of Doppler Ultrasonography in Bovine Reproduction

Fontes¹,

Oosthuizen²

2022

Front. Anim. Sci.

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The use of Doppler ultrasonography to quantify blood vascularization in reproductive organs has increased over the past decade. Doppler technology has predominantly been explored in research settings to evaluate uterine blood flow and to assess follicular and luteal blood perfusion. Recent research has also explored the use of Doppler technology in applied reproductive management for both the beef and dairy industries and has focused on the use of luteal color Doppler ultrasonography to evaluate embryo transfer recipients and perform early pregnancy diagnosis. Although significant progress has been made and current literature indicates a strong potential for the applied use of Doppler ultrasonography to increase reproductive efficiency in the cattle industry, uptake of this technology is still currently limited. This review summarizes the recent developments in the applied use of color Doppler ultrasonography for reproductive management in both beef and dairy cattle herds.

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“…negative energy balance) in the early postpartum period than multiparous cows, primiparous cows are more likely to develop uterine diseases, which are known factors affecting resumption of postpartum cyclicity [22]. According to Berger et al [23], the luteal area and progesterone concentration were greater in pregnant cattle compared with those in open cattle. However, other studies did not find such a correlation [24].…”

Section: Relationship Of Progesterone In Milk With Productivity Of Cows According To Status Of Reproductionmentioning

confidence: 99%

Dynamic Changes on Progesterone Concentration in Cow’s Milk Determined by Inline Milk Analysis System Herd Navigator

Antanaitis¹,

Malašauskienė²,

Televičius³

et al. 2020

Preprint

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The aim of the instant study was to evaluate relative inline progesterone dynamic changes according to parity and status of reproduction and to estimate the relationship with productivity in dairy cows by inline milk analysis system (IMAS) Herd Navigator. According to a progesterone assay, cows were divided into three periods: postpartum, after insemination, and pregnancy. In the first stage of the postpartum period (0-29 days), the progesterone level in milk was monitored every 6 days. The second stage of the postpartum period (30-65 days) lasted until cows were inseminated. In the third period (0-45 days) after cows were inseminated, progesterone scores were distributed according to whether or not cows became pregnant. The stability of progesterone dynamics was monitored in the last study period (45-90 days). For milk progesterone detection, the fully automated real-time progesterone analyzer Herd Navigator (Lattec I/S. Hillerød. Denmark) was used in combination with a DeLaval milking robot (DeLaval Inc., Tumba, Sweden). The highest progesterone concentration in multiparous cows ranged from 1.08% (11-17 days postpartum) to 34.89% higher than that in cows of the first parity. The lowest progesterone concentrations in the milk of all cows were estimated during the first 5 postpartum days and between 18 and 23 days after calving. Peak milk progesterone concentrations were evaluated in the first stage of the experiment on days 24-29 after calving. In the 30-65-day period after calving, the level of milk progesterone was 2.02-2.08 times higher than that in the 24-29-day postpartum period. After insemination, the level of progesterone in milk increased by 10.77-22.54% compared with the level from cows on days 30-65 after calving. A higher (12.88%) concentration of progesterone in milk was evaluated in multiparous cows compared with that from cows of the first parity. In pregnant cows, milk progesterone within 0-45 days after insemination was 23.88% (in multiparous cows) and 32.54% (in primiparous cows) higher than that in non-pregnant cows. On days 31–35 after insemination, pregnant cows had higher milk progesterone levels, which can predict pregnancy success. According to our study results, we can suggest that an inline progesterone concentration determined by inline milk analysis system Herd Navigator and changes in its dynamics correlate with different reproductive statuses and milk yield of cows. Pregnant cows 11–15 days after insemination have higher milk progesterone levels, what positively, associated with a successful pregnancy.

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Pregnancy outcome is influenced by luteal area during diestrus before successful insemination but not by milk production level

Cited by 10 publications

References 24 publications

Dynamic Changes in Progesterone Concentration in Cows’ Milk Determined by the At-Line Milk Analysis System Herd NavigatorTM

Dynamic Changes in Progesterone Concentration in Cows’ Milk Determined by the At-Line Milk Analysis System Herd NavigatorTM

Applied Use of Doppler Ultrasonography in Bovine Reproduction

Dynamic Changes on Progesterone Concentration in Cow’s Milk Determined by Inline Milk Analysis System Herd Navigator

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