{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,5]],"date-time":"2025-08-05T13:07:16Z","timestamp":1754399236920,"version":"3.37.3"},"reference-count":24,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2018,10,13]],"date-time":"2018-10-13T00:00:00Z","timestamp":1539388800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Al Wabra Wildlife Preservation"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Reprod Domestic Animals"],"published-print":{"date-parts":[[2019,2]]},"abstract":"<jats:title>Contents<\/jats:title><jats:p>As the natural habitat of more and more species becomes depleted, captive breeding programmes have become established to bring species back from the brink of extinction. Monitoring the reproductive status of an individual is essential in order to improve breeding success. Traditional methods have involved stressful blood sampling, and thus noninvasive methods have been proven to be reliable alternatives for monitoring reproductive function in both captive and free\u2010ranging animals. Subsequently, noninvasive methods have become an invaluable tool in longitudinal studies and conservation efforts, as animals can be observed without, or minimal human contact. The Beira antelope is a small antelope endemic to the northern part of the Horn of Africa. Population numbers of the Beira have been declining over the last few decades due to habitat fragmentation. We show here that the reproductive cycle of female Beira antelopes can be monitored noninvasively, by using faecal samples to analyse oestrogen (fEM) as well as progestagen (fPM) metabolites. The profiles of fPM and fEM of both females showed regular cyclic patterns in which the follicular and luteal phases could be distinguished. The overall mean cycle length is 22\u00a0days (range: 21\u201325\u00a0days), with a mean length of the follicular phase of 6\u00a0days (range: 4\u20137\u00a0days) and a mean length for the luteal phase being 15\u00a0days (range: 12\u201316\u00a0days). The suitability of these noninvasive techniques should assist in optimizing breeding efforts of this endemic small antelope in captivity. Being noninvasive, this method could also be a useful tool for monitoring reproductive function in the dwindling wild populations.<\/jats:p>","DOI":"10.1111\/rda.13351","type":"journal-article","created":{"date-parts":[[2018,9,24]],"date-time":"2018-09-24T11:15:06Z","timestamp":1537787706000},"page":"275-279","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Noninvasive measurements of ovarian activity in Beira antelope (<i>Dorcatragus megalotis<\/i>)"],"prefix":"10.1111","volume":"54","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4040-8425","authenticated-orcid":false,"given":"Tanja E.","family":"Wolf","sequence":"first","affiliation":[{"name":"Department of Zoology and Entomology, Faculty of Natural and Agricultural Sciences, Mammal Research Institute University of Pretoria Pretoria South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abdi","family":"Arif","sequence":"additional","affiliation":[{"name":"Wildlife &amp; Veterinary Service Al Wabra Wildlife Preservation Doha Qatar"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9748-2947","authenticated-orcid":false,"given":"Nigel C.","family":"Bennett","sequence":"additional","affiliation":[{"name":"Department of Zoology and Entomology, Faculty of Natural and Agricultural Sciences, Mammal Research Institute University of Pretoria Pretoria South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1474-7602","authenticated-orcid":false,"given":"Andr\u00e9","family":"Ganswindt","sequence":"additional","affiliation":[{"name":"Department of Zoology and Entomology, Faculty of Natural and Agricultural Sciences, Mammal Research Institute University of Pretoria Pretoria South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2018,10,13]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1098-2345(1998)46:4<285::AID-AJP2>3.0.CO;2-8"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.yhbeh.2017.02.001"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.3377\/004.049.0106"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1006\/gcen.1999.7287"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/zoo.10034"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10344-009-0326-8"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10344-008-0177-8"},{"key":"e_1_2_8_9_1","first-page":"91","article-title":"Observations on puberty and pregnancy in female giraffe (Giraffa camelopardalis)","volume":"8","author":"Hall\u2010Martin A. 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