{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T22:47:28Z","timestamp":1768603648414,"version":"3.49.0"},"reference-count":30,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T00:00:00Z","timestamp":1768521600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T00:00:00Z","timestamp":1768521600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["anatomypubs.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Anatomical Record"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The equine ovary exhibits unique structural and developmental features that distinguish it from those of other domestic species, including the presence of an ovulation fossa and an inversion of cortical and medullary layers. This study aimed to investigate the morphostructural development of the equine fetal ovary, with particular emphasis on the formation of the ovulation fossa. Fourteen female equine fetuses, ranging from 70 to 200\u2009days of gestation, were collected from a commercial abattoir. Results revealed a progressive increase in ovarian volume and marked histological changes throughout gestation, including the proliferation of interstitial cells and the organization of germ cells into ovigerous cords. Although cortical thickening and surface invagination were observed at the presumptive site of the ovulation fossa, neither cellular differentiation nor cortical\u2013medullary inversion\u2014hallmarks of the adult ovary\u2014were evident. These findings suggest that while initial histological differentiation of the ovulation fossa occurs prenatally, its complete formation likely takes place postnatally. This study contributes to a better understanding of ovarian development in horses and provides new data for future studies in areas such as physiology, pathology, and animal reproduction.<\/jats:p>","DOI":"10.1002\/ar.70131","type":"journal-article","created":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T11:03:27Z","timestamp":1768561407000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Unraveling ovarian histology: The key morphological aspects that spur the development of the\n                    <i>Fossa ovarii<\/i>\n                    in equine"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5972-1417","authenticated-orcid":false,"given":"Laura","family":"Ver Goltz","sequence":"first","affiliation":[{"name":"Departamento de Cirurgia, Setor de Anatomia dos Animais Dom\u00e9sticos e Silvestres, Faculdade de Medicina Veterin\u00e1ria e Zootecnia Universidade de S\u00e3o Paulo (USP)  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9981-1230","authenticated-orcid":false,"given":"Silvio Pires","family":"Gomes","sequence":"additional","affiliation":[{"name":"Departamento de Cirurgia, Setor de Anatomia dos Animais Dom\u00e9sticos e Silvestres, Faculdade de Medicina Veterin\u00e1ria e Zootecnia Universidade de S\u00e3o Paulo (USP)  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0837-9612","authenticated-orcid":false,"given":"Bruno Cesar","family":"Schimming","sequence":"additional","affiliation":[{"name":"Departamento de Biologia Estrutural e Funcional Instituto de Bioci\u00eancias, Universidade Estadual Paulista (UNESP)  Botucatu Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5195-3202","authenticated-orcid":false,"given":"Fabio Cesar Magioli","family":"Abdala","sequence":"additional","affiliation":[{"name":"Departamento de Cirurgia, Setor de Anatomia dos Animais Dom\u00e9sticos e Silvestres, Faculdade de Medicina Veterin\u00e1ria e Zootecnia Universidade de S\u00e3o Paulo (USP)  S\u00e3o Paulo Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4979-115X","authenticated-orcid":false,"given":"Maria Ang\u00e9lica","family":"Miglino","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Animal Health, Production and Environment University of Marilia (UNIMAR)  Marilia Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4871-5625","authenticated-orcid":false,"given":"Tais Harumi","family":"de Castro Sasahara","sequence":"additional","affiliation":[{"name":"Departamento de Biologia Estrutural e Funcional Instituto de Bioci\u00eancias, Universidade Estadual Paulista (UNESP)  Botucatu Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2026,1,16]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0198108"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/ar.23339"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2017.11.036"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.3390\/ani11082304"},{"key":"e_1_2_8_6_1","unstructured":"Bergin W. C.(1968).Developmental horizons and measurements useful for age determination of equine embryos and fetuses(Master's thesis) Department of Physiology Kansas State University."},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2011.07.020"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.3389\/fvets.2024.1275220"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1439-0531.2008.01166.x"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1439-0264.1973.tb00253.x"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2011.04.014"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2019.03.007"},{"key":"e_1_2_8_13_1","volume-title":"Reproductive biology of the mare: Basic and applied aspects","author":"Ginther O. 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