{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T10:44:51Z","timestamp":1775645091674,"version":"3.50.1"},"reference-count":23,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2024,3,28]],"date-time":"2024-03-28T00:00:00Z","timestamp":1711584000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Reprod Domestic Animals"],"published-print":{"date-parts":[[2024,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Most of the northern hemisphere donkey breeds are faced with the risk of extinction, thus donkey reproduction is considered an emerging branch of theriogenology, and the management of artificial insemination and induction of ovulation is a crucial point in setting up preservation protocols. For four consecutive cycles, six jennies' ovarian activity was routinely monitored; an ultrasound examination was performed daily from the evidence of a follicle diameter \u226527\u2009mm until ovulation. Upon reaching a follicular diameter \u226532\u2009\u00b1\u20092\u2009mm (Hour 0), oestrous jennies were treated alternatively with 0.1\u2009mg triptorelin acetate, sc, (TRIP), 0.4\u2009mg\/sc of buserelin acetate (BUS) or saline, sc, (CTRL) and examined ultrasonographically at Hours 14, 24, 38, 42, 48, 62 and every 24\u2009h until ovulation. Induction of ovulation was considered successful if ovulation occurred from 24 to 48\u2009h after treatment. 11\/12 cycles resulted in ovulation for TRIP and 12\/12 for BUS and CTRL groups, respectively. Mean\u2009\u00b1\u2009SD ovulation time after treatment was 37.3\u2009\u00b1\u20098.3, 47.1\u2009\u00b1\u200921.0 and 66.8\u2009\u00b1\u200925.9\u2009h for BUS, TRIP and CTRL, respectively (<jats:italic>p<\/jats:italic>\u2009=\u2009.0032). Ovulation rates between h24 and h48 were 10\/12 (83.3%) for both TRIP\/BUS and 2\/12 (16.7%) for CTRL, respectively (<jats:italic>p<\/jats:italic>\u2009=\u2009.003). Buserelin and triptorelin\u2010treated jennies had a 25 times higher probability to ovulate between Hours 24 and 48 than controls (<jats:italic>p<\/jats:italic>\u2009=\u2009.003), while there were no jenny and cycle effects on the ovulatory rate. The results of this study show how triptorelin successfully induced ovulation in jennies, like other GnRH analogues previously evaluated.<\/jats:p>","DOI":"10.1111\/rda.14555","type":"journal-article","created":{"date-parts":[[2024,3,28]],"date-time":"2024-03-28T11:50:09Z","timestamp":1711626609000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["<scp>GnRH<\/scp> analogue triptorelin acetate induces ovulation in jennies during oestrus"],"prefix":"10.1111","volume":"59","author":[{"given":"Diana","family":"Fanelli","sequence":"first","affiliation":[{"name":"Dipartimento di Scienze Veterinarie Universit\u00e0 di Pisa  Pisa Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rebecca","family":"Moroni","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Veterinarie Universit\u00e0 di Pisa  Pisa Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giovanni","family":"Berti","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Veterinarie Universit\u00e0 di Pisa  Pisa Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Francesco","family":"Camillo","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Veterinarie Universit\u00e0 di Pisa  Pisa Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Saverio","family":"Maltinti","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Veterinarie Universit\u00e0 di Pisa  Pisa Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alessandra","family":"Rota","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Veterinarie Universit\u00e0 di Pisa  Pisa Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3433-7918","authenticated-orcid":false,"given":"Duccio","family":"Panzani","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Veterinarie Universit\u00e0 di Pisa  Pisa Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,3,28]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.2042\u20103306.1985.tb04594.x"},{"key":"e_1_2_9_3_1","first-page":"197","article-title":"Extraspecific donkey\u2010in\u2010horse pregnancy as a model of early fetal death","volume":"35","author":"Allen W. 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