Review: The ovarian follicular reserve – implications for fertility in ruminants

Mossa, F.; Evans, A.C.O.

doi:10.1016/j.animal.2023.100744

Cited by 12 publications

(2 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it should be noted that the presence (luteal status) or absence (follicular status) of ovarian CL at the time of synchronization did not affect the results of ovarian follicular response to hormonal stimulation. In ruminants, increased ovarian reserve due to genetic selection has been reported to contribute to increased reproductive capacity, which AFC (direct evaluation) and blood level of anti-Müllerian hormone (indirect evaluation) have been extensively investigated as phenotypic biomarkers of ovarian reserve [17,18]. Although the evaluation of AFC has been offered as a tool for indicating better ovarian reserve in mono-ovulatory large ruminants, studies regarding the application of AFC for evaluating ovarian response to hormonal synchronization and fertility potential in does are limited.…”

Section: Discussionmentioning

confidence: 99%

Exploring the impacts of different antral follicle count and luteal presence on ovarian response and fertility in inseminated Boer does

Moonmanee,

Promsao,

Yama

et al. 2024

J Anim Sci Technol

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Exploring the impacts of different antral follicle count and luteal presence on ovarian response and fertility in inseminated Boer does

Moonmanee,

Promsao,

Yama

et al. 2024

J Anim Sci Technol

View full text Add to dashboard Cite

show abstract

“…Undernutrition during gestation has been shown to affect foetal development; at the time of gonad formation, it is likely to have an effect on the subsequent development of the reproductive organs (Rhind et al, 2001). Primordial germ cells (PGCs) migrate from the endoderm of the yolk sac to the genital ridge around days 18-31 of bovine gestation (Mossa & Evans, 2023). During the migration, the PGCs are proliferating via mitotic divisions (Smitz & Cortvrindt, 2002).…”

Section: Introductionmentioning

confidence: 99%

Association between maternal growth in the pre‐conception and early gestational period of nulliparous dairy heifers with anti‐Müllerian hormone in their female offspring

Thomson,

Beltman,

Crowe

et al. 2023

Reprod Domestic Animals

View full text Add to dashboard Cite

Anti‐Müllerian hormone (AMH) is secreted by granulosa cells of healthy, growing follicles and is positively correlated with the ovarian reserve. Maternal and environmental factors, such as nutrition, disease, parity and endocrine disruptors, are thought to have a profound impact on ovarian reserve development during early foetal life. For genetic progress, it can be advantageous to breed dairy replacements from heifers to expedite the generation interval; however, there is some evidence that nulliparous animals produce female offspring with smaller ovarian reserves compared with multiparous animals. The objective of this prospective, observational study was to determine whether maternal growth in the pre‐conception and early gestational period of nulliparous dairy heifers is associated with pre‐weaning AMH concentrations in their female offspring. Our hypothesis was that excessive growth in this period would negatively impact AMH concentrations. Seasonal, pasture‐based dairy heifer calves (n = 156) born from nulliparous dams, from six Irish farms, were blood sampled at an average of 60 days of age in spring 2022 and tested for AMH. Mixed‐effects linear regression models were constructed with Box‐Cox transformed AMH concentration as the dependent variable. The independent variables tested included maternal average daily gain (ADG) from pre‐breeding examination (PBE) to pregnancy diagnosis (PD) between 30 and 60 days in calf (DIC), ADG from PBE to PD over 60 DIC and ADG between the two PDs. Calf breed and age at sampling were forced into the models, and the farm was treated as a random effect in all models. We found that as ADG increased from the pre‐breeding period to their first PD visit, the AMH concentration in their offspring reduced. However, ADG explained only a small amount of the variation in AMH concentrations (marginal R2 = 0.041). In conclusion, the results of our study suggest that excessive growth prior to conception and in early gestation of nulliparous heifers could impact the ovarian reserve of their female offspring, and may imply that farmers should avoid excessive growth in the immediate pre‐breeding and early gestational periods.

show abstract

Editorial: Recent scientific advances in reproduction and fertility in ruminants: an overview of the 11th International Ruminant Reproduction Symposium, Galway, Ireland, 2023

Lonergan

Beltman

Butler

et al. 2023

animal

View full text Add to dashboard Cite

Review: The ovarian follicular reserve – implications for fertility in ruminants

Cited by 12 publications

References 63 publications

Exploring the impacts of different antral follicle count and luteal presence on ovarian response and fertility in inseminated Boer does

Exploring the impacts of different antral follicle count and luteal presence on ovarian response and fertility in inseminated Boer does

Association between maternal growth in the pre‐conception and early gestational period of nulliparous dairy heifers with anti‐Müllerian hormone in their female offspring

Editorial: Recent scientific advances in reproduction and fertility in ruminants: an overview of the 11th International Ruminant Reproduction Symposium, Galway, Ireland, 2023

Contact Info

Product

Resources

About