{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T15:38:47Z","timestamp":1791819527417,"version":"4.3.4"},"reference-count":27,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2020,6,19]],"date-time":"2020-06-19T00:00:00Z","timestamp":1592524800000},"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":[[2020,8]]},"abstract":"<jats:title>Contents<\/jats:title><jats:p>Uterine and cervical size of Holstein dairy cows is reported among reasons for a decline in dairy cow fertility. Therefore, the objectives of this study were to (a) determine whether size of the cervix and uterus at 4\u00a0weeks postpartum impacted subsequent fertility at first service in Jersey cattle, (b) determine whether progesterone level at 4\u00a0weeks postpartum impacted cyclicity and (c) the association of the presence of corpus luteum and uterus and cervix size. Body condition scores at calving, presence of postpartum diseases, parity number and milk weights were taken from lactating Jersey dairy cows (<jats:italic>N<\/jats:italic>\u00a0=\u00a0147) for 28\u00a0days postpartum. During the fourth week postpartum, a blood sample was obtained for progesterone concentration, and transrectal ultrasonography was performed by a high\u2010resolution ultrasound machine to determine cervical and uterine horn diameter, as well as ovarian structures measurements. Correcting for parity number, BCS at calving, presence of diseases and milk yield, cows with a cervix &gt;2.54\u00a0\u00b1\u00a00.63\u00a0cm and uterine horn &gt;2.25\u00a0\u00b1\u00a00.59\u00a0cm were less likely to become pregnant at first service (<jats:italic>p<\/jats:italic>\u00a0=\u00a0.04 and<jats:italic>p<\/jats:italic>\u00a0=\u00a0.003, respectively). The cows with larger cervix had a trend to be less likely to have a corpus luteum present at the 4th week of lactation (<jats:italic>p<\/jats:italic>\u00a0=\u00a0.067). Cows with larger uterine horn size were less likely to have a corpus luteum present at the 4th week of lactation (<jats:italic>p<\/jats:italic>\u00a0=\u00a0.015). It is concluded that a larger cervix and\/or uterus during the postpartum was associated negatively with fertility and cyclicity in Jersey cows.<\/jats:p>","DOI":"10.1111\/rda.13702","type":"journal-article","created":{"date-parts":[[2020,5,14]],"date-time":"2020-05-14T12:25:25Z","timestamp":1589459125000},"page":"915-921","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Evaluation of cervical and uterine size, at 4\u00a0weeks postpartum, as a predictor of subsequent fertility in Jersey cattle"],"prefix":"10.1111","volume":"55","author":[{"given":"Scott E.","family":"Poock","sequence":"first","affiliation":[{"name":"Department of Veterinary Medicine &amp; Surgery College of Veterinary Medicine University of Missouri Columbia MO USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7217-9244","authenticated-orcid":false,"given":"Pedro","family":"Melendez","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine &amp; Surgery College of Veterinary Medicine University of Missouri Columbia MO USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monica O.","family":"Caldeira","sequence":"additional","affiliation":[{"name":"Division of Animal Sciences University of Missouri Columbia MO USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen G.","family":"Moore","sequence":"additional","affiliation":[{"name":"Division of Animal Sciences University of Missouri Columbia MO USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lauren M.","family":"Mayo","sequence":"additional","affiliation":[{"name":"Division of Animal Sciences University of Missouri Columbia MO USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roger","family":"Molina\u2010Coto","sequence":"additional","affiliation":[{"name":"Division of Animal Sciences University of Missouri Columbia MO USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthew C.","family":"Lucy","sequence":"additional","affiliation":[{"name":"Division of Animal Sciences University of Missouri Columbia MO USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,6,19]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2015.04.022"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.2011-4892"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.2527\/jas.2014-8496"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.repbio.2015.12.002"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.2010-3429"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(94)77212-X"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2003.03.001"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2014.01.018"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(98)70142-0"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1439-0531.2012.02109.x"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(02)74302-6"},{"key":"e_1_2_9_13_1","volume-title":"SAS System for Mixed Models","author":"Littell R.","year":"1996"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(04)73460-8"},{"key":"e_1_2_9_15_1","volume-title":"Nutrient requirements of dairy cattle","author":"National Research Council","year":"2001"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(83)81832-3"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.2007-0439"},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2018.08.025"},{"key":"e_1_2_9_19_1","volume-title":"SAS\/STAT Software: Change and enhancements through release 9.4 for Windows","author":"SAS","year":"2017"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2005.08.021"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2010.10.013"},{"key":"e_1_2_9_22_1","doi-asserted-by":"crossref","first-page":"734","DOI":"10.2527\/jas1986.623734x","article-title":"Anovulation in postpartum suckled beef\u2010cows. 1. 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