{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T12:38:37Z","timestamp":1778675917885,"version":"3.51.4"},"reference-count":30,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2020,6,22]],"date-time":"2020-06-22T00:00:00Z","timestamp":1592784000000},"content-version":"vor","delay-in-days":0,"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":["314952\/2018\u20107"],"award-info":[{"award-number":["314952\/2018\u20107"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003046","name":"Empresa Brasileira de Pesquisa Agropecu\u00e1ria","doi-asserted-by":"publisher","award":["20.19.01.004.00.03.001"],"award-info":[{"award-number":["20.19.01.004.00.03.001"]}],"id":[{"id":"10.13039\/501100003046","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":[[2020,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>This study assessed the efficiency of synchronous oestrous induction by light programme followed by two doses of cloprostenol in acyclic Saanen goats of different parity orders. Primiparous (<jats:italic>n<\/jats:italic>\u00a0=\u00a022) and multiparous (<jats:italic>n<\/jats:italic>\u00a0=\u00a033) goats were subjected to 16\u00a0hr of light and 8\u00a0hr of darkness for 60\u00a0days (D0\u2010D60), starting 10\u00a0days after the winter solstice. All goats received 120\u00a0\u00b5g cloprostenol doses on D130 (morning) and D141.5 (afternoon) (11.5\u00a0days apart). Oestrus behaviour, ovarian follicular dynamics and serum progesterone (P4) analyses were recorded from D0 to D174 at different intervals. Animals in oestrus after D141.5 were randomly assigned into two groups: assisted natural mating (NM) or artificial insemination (AI; 10\u201324\u00a0hr after oestrus onset with frozen\u2010thawed semen). From D57 to D120, 89.0% of goats presented large follicles (5\u20138\u00a0mm) and P4 concentrations were subluteal from D0 to D120. More multiparous compared to primiparous goats (54.5%, 18\/33 vs. 18.2%, 4\/22) exhibited oestrus after both injections. More primiparous compared to multiparous goats (54.5%, 12\/22 vs. 12.1%, 4\/33) did not exhibit oestrus after any injection. A total of 35 goats (64%) were in oestrus after the second prostaglandin injection and were subjected to NM or AI. The conception rate was similar among primiparous (70.0%, 7\/10) and multiparous (68.0%, 17\/25) goats but the pregnancy rate differed, being 31.8% (7\/22) and 51.5% (17\/33), respectively. No interaction was found between parity order and P4 concentrations in does that became pregnant or not. Thus, the association between light programme (60\u00a0days, starting at the beginning of winter) and two cloprostenol administrations 11.5\u00a0days apart (starting 70\u00a0days after the end of the light treatment) resulted in sufficient synchronous oestrous response in multiparous acyclic Saanen goats to reach satisfactory fertility levels after both NM and AI.<\/jats:p>","DOI":"10.1111\/rda.13736","type":"journal-article","created":{"date-parts":[[2020,6,2]],"date-time":"2020-06-02T21:43:03Z","timestamp":1591134183000},"page":"965-973","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Use of two cloprostenol administrations 11.5\u00a0days apart efficiently synchronizes oestrus in photostimulated multiparous dairy goats in the non\u2010breeding season"],"prefix":"10.1111","volume":"55","author":[{"given":"Marina Monteiro","family":"Netto","sequence":"first","affiliation":[{"name":"Faculdade de Veterin\u00e1ria 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