Effects of postpartum diseases on antral follicle count and serum concentration of Anti-Müllerian hormone in dairy cows

Schwarzmann, Laurin; Marchand, Andrée-Anne; Knutti, B.; Bruckmaier, Rupert M.; Bollwein, Heinrich; Scarlet, D.

doi:10.1016/j.anireprosci.2023.107291

Cited by 5 publications

(2 citation statements)

References 37 publications

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“…The Anti-Mullerian Hormone (AMH) is produced by granulosa cells of growing follicles and is responsible for regulating the initial recruitment of primordial follicles to antral follicles. For this reason, it can be used as a tool to estimate the quantity of healthy follicles in an animal (Schwarzmann et al, 2023). Thus, higher concentrations of AMH may be associated with improved fertility in female cattle.…”

Section: Antral Follicular Count (Afc's)mentioning

confidence: 99%

Mesenchymal stem cells in animal reproduction: sources, uses and scenario

Oliveira,

Braga,

Miranda

et al. 2024

Braz. J. Vet. Med.

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Studies regarding mesenchymal stem cells turned up in the 1960's and this cell type created a great number of questions about its functions and applicability in science and medicine. When used with therapeutic intent, these cells present an inclination to migrate to sites of injury, inflammation or disease, where they secrete bioactive factors that stimulates the synthesis of new tissue. In this context, studies using rodents reported that MSCs promoted positive effects in the ovarian function in mice with premature aging of follicular reserve. In female bovines, experimental stem cell-based therapies have been used to either generate new oocytes with in vitro quality or stimulate such action in vivo. It is also reported, that the intraovarian application of mesenchymal stem cells generates a greater production of embryos in vitro and the production of early and expanded blastocysts. Additionally, analysis of ovarian tissue in animal subjected to treatment showed an increase in the number of developing follicles. Nevertheless, the treatments involving stem cells with different modes of application, different sources and different species were able to act on the hormonal, tissue, cellular and metabolic levels, generating positive results in the recovery and improvement of ovarian functions.

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Section: Antral Follicular Count (Afc's)mentioning

confidence: 99%

Mesenchymal stem cells in animal reproduction: sources, uses and scenario

Oliveira,

Braga,

Miranda

et al. 2024

Braz. J. Vet. Med.

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“…However, conflicting findings exist regarding the relationship between AFC and reproductive efficiency (Alward et al, 2023). The interaction between AFC and fertility is affected by many other factors (Schwarzmann et al, 2023), including bovine species ( Bos indicus or Bos taurus ) or the concrete study (de Lima et al, 2020). Ultrasound can be used to identify animals with high AFC, reducing individual variability in superovulation results.…”

Section: Introductionmentioning

confidence: 99%

Accuracy of ultrasound and visual inspection in antral follicular count in crossbred Holstein cows raised under grazing systems at high altitude

Ayala,

Dutan,

Samaniego

et al. 2023

Reprod Domestic Animals

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The objective of this research was to investigate the diagnostic accuracy of post‐mortem ultrasound in antral follicle count (AFC) determination and compare it with visual AFC in grazing crossbred Holstein cows, at high altitude in Ecuador. Pre‐mortem blood from 80 cows was collected, and AFC and ovarian characteristics were analysed post‐mortem by ultrasound and visual techniques. AFC counts were stratified as high, medium or low by terciles. Mean AMH concentration in pre‐mortem blood was 280.1 ± 15.53 pg/mL. The AFC obtained by visual inspection (26.9 ± 9.49 follicles) was 23.8% higher than by ultrasound (20.5 ± 7.53 follicles) in all ovaries. Body condition score, age and weight of the cattle did not interact with the count technique. In the low AFC group, visual inspection and ultrasound provided similar AFC results. However, in the Medium‐ and High‐AFC groups, AFC by ultrasound was 14.9% lower than AFC by visual inspection. We confirm that ultrasound can be used with great accuracy for AFC >3 mm (close to the resolution limit) in grazing crossbred Holstein cows at high altitude.

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