{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,28]],"date-time":"2026-10-28T05:20:44Z","timestamp":1793164844372,"version":"4.5.0"},"reference-count":10,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2018,4,16]],"date-time":"2018-04-16T00:00:00Z","timestamp":1523836800000},"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":[[2018,8]]},"abstract":"Contents<\/jats:title>This study aimed to clarify the association of interservice interval (ISI<\/jats:styled-content>) with conception rate (CR<\/jats:styled-content>) and to evaluate factors affecting ISI<\/jats:styled-content> in Japanese Black cattle. Data used in this study covered 32,639 artificial insemination (AI<\/jats:styled-content>) records on 972 farms. The mean\u00a0\u00b1\u00a0SEM<\/jats:styled-content><\/jats:italic> of ISI<\/jats:styled-content> and CR<\/jats:styled-content> was 57.0\u00a0\u00b1\u00a00.3\u00a0days and 44.6\u00a0\u00b1\u00a00.3%, respectively. The relative frequency of ISI<\/jats:styled-content> differed significantly between parity groups (p\u00a0<\/jats:italic><\u00a0<\/jats:italic>.05). For parity 0, the proportion of ISI<\/jats:styled-content> at an 18\u2010 to 24\u2010day interval was 43.6%, whereas the proportions in the other parity groups ranged from 27.2% to 29.1%. The CR<\/jats:styled-content> was associated significantly with ISI<\/jats:styled-content>, parity and AI<\/jats:styled-content> number (p\u00a0<\/jats:italic><\u00a0<\/jats:italic>.05), but not with season. Cows reinseminated at an 18\u2010 to 24\u2010day interval had the highest CR<\/jats:styled-content> (46.8%; p\u00a0<\/jats:italic><\u00a0<\/jats:italic>.05). Cows reinseminated at a 39\u2010 to 45\u2010day interval had a similar CR<\/jats:styled-content> to those reinseminated at 25\u2010 38\u2010day and 46\u2010 to 59\u2010day intervals. Cows reinseminated at 11\u201317, 60\u201366 and 67\u00a0days or longer intervals had the lowest CR<\/jats:styled-content> (p\u00a0<\/jats:italic><\u00a0<\/jats:italic>.05). Thus, cows returning to oestrus in a normal cycle tended to have a higher probability of conceiving compared with those that returned to oestrus after a normal cycle for any degree of parity and at any number of AI<\/jats:styled-content>.<\/jats:p>","DOI":"10.1111\/rda.13191","type":"journal-article","created":{"date-parts":[[2018,4,17]],"date-time":"2018-04-17T03:16:59Z","timestamp":1523935019000},"page":"1020-1023","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Association of interservice interval with conception rate in Japanese Black cattle"],"prefix":"10.1111","volume":"53","author":[{"given":"N","family":"Irikura","sequence":"first","affiliation":[{"name":"Faculty of Agriculture Department of Animal and Grassland Sciences University of Miyazaki Miyazaki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M","family":"Uematsu","sequence":"additional","affiliation":[{"name":"Miyazaki Agricultural Mutual Aid Association Miyazaki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5776-3047","authenticated-orcid":false,"given":"G","family":"Kitahara","sequence":"additional","affiliation":[{"name":"Faculty of Agriculture Department of Veterinary Sciences University of Miyazaki Miyazaki Japan"},{"name":"Center for Animal Disease Control University of Miyazaki Miyazaki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T","family":"Osawa","sequence":"additional","affiliation":[{"name":"Faculty of Agriculture Department of Veterinary Sciences University of Miyazaki Miyazaki Japan"},{"name":"Center for Animal Disease Control University of Miyazaki Miyazaki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4612-6624","authenticated-orcid":false,"given":"Y","family":"Sasaki","sequence":"additional","affiliation":[{"name":"Center for Animal Disease Control University of Miyazaki Miyazaki Japan"},{"name":"Organization for Promotion of Tenure Track University of Miyazaki Miyazaki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2018,4,16]]},"reference":[{"key":"e_1_2_8_2_1","first-page":"227","article-title":"Reproductive state of dairy herds in Alberta: A closer look","volume":"19","author":"Ambrose D. 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