{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,26]],"date-time":"2025-08-26T06:10:08Z","timestamp":1756188608951,"version":"3.44.0"},"reference-count":24,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2025,3,3]],"date-time":"2025-03-03T00:00:00Z","timestamp":1740960000000},"content-version":"vor","delay-in-days":2,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100003593","name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","doi-asserted-by":"publisher","award":["406866\/2022\u20108"],"award-info":[{"award-number":["406866\/2022\u20108"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior","doi-asserted-by":"publisher","award":["001"],"award-info":[{"award-number":["001"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004263","name":"Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado do Rio Grande do Sul","doi-asserted-by":"publisher","award":["22\/2551\u20100000391\u20105","22\/2551\u20100000558\u20106","23\/2551\u20100000904\u20108"],"award-info":[{"award-number":["22\/2551\u20100000391\u20105","22\/2551\u20100000558\u20106","23\/2551\u20100000904\u20108"]}],"id":[{"id":"10.13039\/501100004263","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Reprod Domestic Animals"],"published-print":{"date-parts":[[2025,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>The study aimed to evaluate the effects of GnRH given 34\u2009h after progesterone (P4) intravaginal device (IVD) removal in a timed artificial insemination (TAI) protocol. In Experiment 1, 17 Hereford and Braford heifers (control, <jats:italic>n<\/jats:italic>\u2009=\u20097; GnRH34; <jats:italic>n<\/jats:italic>\u2009=\u200910) received 2\u2009mg estradiol benzoate (EB) and a 1 g P4 IVD on Day 0 (D0). On D8, IVDs were removed and 150\u2009\u03bcg d\u2010cloprostenol (PGF) and 1\u2009mg estradiol cypionate (EC) were administered. In the GnRH34 group, animals received 25\u2009\u03bcg lecirelin 34\u2009h after the IVD removal (D9). TAI was performed in both groups on D10 (48\u2009h after IVD removal). Follicular dynamics were evaluated from D8 until ovulation; blood samples were collected 7 and 12\u2009days after TAI. In Experiment 2, to evaluate the effect of GnRH34 on pregnancy rates (control, <jats:italic>n<\/jats:italic>\u2009=\u2009187; GnRH34; <jats:italic>n<\/jats:italic>\u2009=\u2009203), heifers were subjected to the TAI protocols described in Experiment 1. No significant differences were observed in preovulatory follicle (POF) diameter on D10, follicular growth and ovulation rates until 72\u2009h and P4 concentrations on days 7 and 12 after TAI (<jats:italic>p<\/jats:italic>\u2009&gt;\u20090.05). Pregnancy rates (PR) were similar between groups (Control\u2009=\u200950.2%; GnRH34\u2009=\u200950.2%; <jats:italic>p<\/jats:italic>\u2009=\u20090.65). A significant effect of body weight (BW) and body condition score (BCS) on PR was observed for control (<jats:italic>p<\/jats:italic>&lt;\u20090.05), but not for GnRH34. In conclusion, GnRH 34\u2009h after the IVD removal in beef heifers previously treated with EC had no effect on luteal function and fertility.<\/jats:p>","DOI":"10.1111\/rda.70025","type":"journal-article","created":{"date-parts":[[2025,3,11]],"date-time":"2025-03-11T09:40:59Z","timestamp":1741686059000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Luteal Function and Pregnancy Rate in <scp><i>Bos taurus<\/i><\/scp> Heifers Treated With <scp>GnRH<\/scp> Prior to Timed Artificial Insemination"],"prefix":"10.1111","volume":"60","author":[{"given":"Julia Nobre Blank","family":"Camozzato","sequence":"first","affiliation":[{"name":"Faculdade de Veterin\u00e1ria Universidade Federal do Rio Grande do Sul  Porto Alegre RS Brazil"},{"name":"Faculdade de Veterin\u00e1ria, FiBRA Universidade Federal de Pelotas  Cap\u00e3o do Le\u00e3o RS Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bruna Favretto de","family":"Souza","sequence":"additional","affiliation":[{"name":"Faculdade de Veterin\u00e1ria Universidade Federal do Rio Grande do Sul  Porto Alegre RS Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jo\u00e3o Marcello","family":"Rodrigues","sequence":"additional","affiliation":[{"name":"Faculdade de Veterin\u00e1ria Universidade Federal do Rio Grande do Sul  Porto Alegre RS Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alinne Machado Petrarca","family":"L\u00e9o","sequence":"additional","affiliation":[{"name":"Faculdade de Veterin\u00e1ria, FiBRA Universidade Federal de Pelotas  Cap\u00e3o do Le\u00e3o RS Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luiz Francisco Machado","family":"Pfeifer","sequence":"additional","affiliation":[{"name":"Empresa Brasileira de Pesquisa Agropecu\u00e1ria (EMBRAPA)  Porto Velho RO Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marcelo","family":"Bertolini","sequence":"additional","affiliation":[{"name":"Faculdade de Veterin\u00e1ria Universidade Federal do Rio Grande do Sul  Porto Alegre RS Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Monique Tomazele","family":"Rovani","sequence":"additional","affiliation":[{"name":"Faculdade de Veterin\u00e1ria Universidade Federal do Rio Grande do Sul  Porto Alegre RS Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rafael Gianella","family":"Mondadori","sequence":"additional","affiliation":[{"name":"Faculdade de Veterin\u00e1ria, FiBRA Universidade Federal de Pelotas  Cap\u00e3o do Le\u00e3o RS Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3715-2345","authenticated-orcid":false,"given":"Bernardo Garziera","family":"Gasperin","sequence":"additional","affiliation":[{"name":"Faculdade de Veterin\u00e1ria, FiBRA Universidade Federal de Pelotas  Cap\u00e3o do Le\u00e3o RS Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fernando Caetano de","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Faculdade de Veterin\u00e1ria Universidade Federal do Rio Grande do Sul  Porto Alegre RS Brazil"},{"name":"Faculdade de Veterin\u00e1ria, FiBRA Universidade Federal de Pelotas  Cap\u00e3o do Le\u00e3o RS Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,3,3]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2021.11.014"},{"key":"e_1_2_10_3_1","unstructured":"Baruselli P. 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