ArticleAnimals : an open access journal from MDPI2026
Ovarian Anti-Müllerian Hormone Expression in Hyperprolific Sows: Associations with Reproductive Stage and Parity, with Elevated Expression in the Corpus Luteum During the Luteal Stage.
Article in Animals : an open access journal from MDPI, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Although anti-Müllerian hormone (AMH) is widely recognized as a marker of ovarian reserve, its expression in ovarian tissue of hyperprolific sows remains poorly characterized. This study investigated ovarian AMH expression across reproductive stages and evaluated its associations with ovulation rate and parity in hyperprolific Landrace × Yorkshire sows. Ovarian tissues from thirty-one sows were collected after slaughter and classified according to reproductive stage, parity, and ovulation rate. AMH expression was assessed in primordial, primary, secondary, and antral follicles, as well as corpora lutea, using immunohistochemistry and was quantified with the H-score method. Anti-Müllerian hormone was localized to granulosa cells and oocytes throughout follicular development, as well as to luteal cells in the corpus luteum. Expression within ovarian follicles did not differ among follicle types, reproductive stages, parity groups, or ovulation rate classes. In contrast, luteal cells exhibited significantly greater AMH expression during the luteal phase than during the follicular phase (
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