{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T03:54:10Z","timestamp":1790913250244,"version":"4.1.0"},"reference-count":23,"publisher":"Korean Society of Animal Science and Technology","issue":"6","license":[{"start":{"date-parts":[[2024,11,1]],"date-time":"2024-11-01T00:00:00Z","timestamp":1730419200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0"}],"funder":[{"name":"Rural Development Administration","award":["RE-2024-00351672"],"award-info":[{"award-number":["RE-2024-00351672"]}],"id":[{"id":"https:\/\/ror.org\/03xs9yg50","id-type":"ROR","asserted-by":"crossref"}]}],"content-domain":{"domain":["www.ejast.org"],"crossmark-restriction":true},"short-container-title":["J Anim Sci Technol"],"published-print":{"date-parts":[[2024,11]]},"abstract":"<jats:p>The size and location of the corpus luteum and the presence of coexistent\n                    follicles are crucial factors in synchronizing recipients and determining the\n                    suitability for embryo transfer. However, there has been a recent decline in\n                    conception rates after embryo transfer, which is attributed to environmental\n                    pollution, uterine inflammation, ovarian cysts, and other factors. Therefore, we\n                    conducted experiments to establish a novel criterion for successful embryo\n                    transfer assessment. To assess the suitability for embryo transfer one day\n                    before transfer, we conducted ultrasound examinations equipped with a vaginal\n                    probe to evaluate the corpus luteum and coexistent follicle. We found that\n                    instances with corpus luteum and coexistent follicles (diameter: &gt; 10 mm)\n                    constituted the majority (69.7%) of cases. When comparing the fertility rates of\n                    cases in which the corpus luteum and coexistent follicle (diameter: &gt; 10\n                    mm) were located on the same ovary and cases in which they were not, higher\n                    fertility rates were observed when the corpus luteum and coexistent follicle\n                    (diameter: &gt; 10 mm) were on different ovaries. Our study revealed a high\n                    incidence of corpus luteum and coexistent follicles with a diameter exceeding 10\n                    mm. Therefore, our findings suggest that the co-occurrence of the corpus luteum\n                    and a large follicle can serve as a new standard for the evaluation of embryo\n                    transfer suitability.<\/jats:p>","DOI":"10.5187\/jast.2024.e31","type":"journal-article","created":{"date-parts":[[2024,3,21]],"date-time":"2024-03-21T05:10:38Z","timestamp":1710997838000},"page":"1127-1136","update-policy":"https:\/\/doi.org\/10.5187\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Conception rate according to the size and location of corpus luteum\n                    and coexistent follicle before embryo transfer in Hanwoo"],"prefix":"10.5187","volume":"66","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5433-2498","authenticated-orcid":false,"given":"Su-Geun","family":"Lim","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/040c17130","id-type":"ROR","asserted-by":"publisher"}],"name":"School of Life Sciences, Institute of Life Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2593-6529","authenticated-orcid":false,"given":"Junkoo","family":"Yi","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/0031nsg68","id-type":"ROR","asserted-by":"publisher"}],"name":"School of Animal Life Convergence Science, Hankyong National University, Ansung 17579, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6785-6346","authenticated-orcid":false,"given":"Jaejung","family":"Ha","sequence":"additional","affiliation":[{"name":"Gyeongsangbuk-Do Livestock Research Institute, Yeongju 36052, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6143-8856","authenticated-orcid":false,"given":"Jinyeon","family":"Park","sequence":"additional","affiliation":[{"name":"Gyeongsangbuk-Do Livestock Research Institute, Yeongju 36052, Korea"},{"id":[{"id":"https:\/\/ror.org\/040c17130","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Animal Science and Biotechnology, Kyungpook National University, Sangju 37224, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0848-7189","authenticated-orcid":false,"given":"Woo-Sung","family":"Kwon","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/040c17130","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Animal Science and Biotechnology, Kyungpook National University, Sangju 37224, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-9870-9734","authenticated-orcid":false,"given":"Daejung","family":"Yu","sequence":"additional","affiliation":[{"name":"Chonnam Agricultural Research & Extension Services Livestock Institute, Gangjin 59213, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6993-3624","authenticated-orcid":false,"given":"Zaeyoung","family":"Ryoo","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/040c17130","id-type":"ROR","asserted-by":"publisher"}],"name":"School of Life Sciences, BK21 FOUR KNU Creative Bioresearch Group, Kyungpook National University, Daegu 41566, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4820-4438","authenticated-orcid":false,"given":"Daehyun","family":"Kim","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05kzjxq56","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Animal Science, Chonnam National University, Gwangju 61186, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3132","published-online":{"date-parts":[[2024,11,30]]},"reference":[{"key":"key2.0261002113238e+13_B1","doi-asserted-by":"crossref","first-page":"991","DOI":"10.1017\/S1751731119002775","article-title":"Review: recent advances in bovine in vitro embryo production:\n                        reproductive biotechnology history and methods","volume":"14","author":"Ferr\u00e9","year":"2020","journal-title":"Animal."},{"key":"key2.0261002113238e+13_B2","doi-asserted-by":"crossref","first-page":"2952","DOI":"10.1093\/jas\/sky139","article-title":"Reproduction in domestic ruminants during the past 50 yr:\n                        discovery to application","volume":"96","author":"Smith","year":"2018","journal-title":"J Anim Sci."},{"key":"key2.0261002113238e+13_B3","doi-asserted-by":"crossref","first-page":"121409","DOI":"10.1016\/j.jclepro.2020.121409","article-title":"A review on dairy cattle farming: is precision livestock farming\n                        the compromise for an environmental, economic and social sustainable\n                        production?","volume":"262","author":"Lovarelli","year":"2020","journal-title":"J Clean Prod."},{"key":"key2.0261002113238e+13_B4","doi-asserted-by":"crossref","first-page":"1640","DOI":"10.1016\/j.theriogenology.2010.12.026","article-title":"Ovum pick up, in vitro embryo production, and pregnancy rates\n                        from a large-scale commercial program using Nelore cattle (Bos indicus)\n                        donors","volume":"75","author":"Pontes","year":"2011","journal-title":"Theriogenology."},{"key":"key2.0261002113238e+13_B5","doi-asserted-by":"crossref","first-page":"578","DOI":"10.3390\/vetsci10090578","article-title":"Improving cryopreservation efficiency and pregnancy rate through\n                        superovulation with follicle-stimulating hormone in Korean Hanwoo cows via\n                        ovum pick 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pregnancy\n                        rates","volume":"24","author":"B\u00f3","year":"2011","journal-title":"Reprod Fertil Dev."},{"key":"key2.0261002113238e+13_B9","doi-asserted-by":"crossref","DOI":"10.1590\/1984-3143-ar2020-0007","article-title":"Factors associated with pregnancy rate in fixed-time embryo\n                        transfer in cattle under humid-tropical conditions of\n                        M\u00e9xico","volume":"17","author":"P\u00e9rez-Mora","year":"2020","journal-title":"Anim Reprod."},{"key":"key2.0261002113238e+13_B10","doi-asserted-by":"crossref","first-page":"388","DOI":"10.1016\/j.theriogenology.2016.04.053","article-title":"Alternative programs for synchronizing and resynchronizing\n                        ovulation in beef cattle","volume":"86","author":"B\u00f3","year":"2016","journal-title":"Theriogenology."},{"key":"key2.0261002113238e+13_B11","doi-asserted-by":"crossref","first-page":"268","DOI":"10.1016\/j.anireprosci.2005.07.012","article-title":"The 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Biotechnol."},{"key":"key2.0261002113238e+13_B14","doi-asserted-by":"crossref","first-page":"98","DOI":"10.1016\/j.theriogenology.2007.09.008","article-title":"Factors affecting success of embryo collection and transfer in\n                        large dairy herds","volume":"69","author":"Chebel","year":"2008","journal-title":"Theriogenology."},{"key":"key2.0261002113238e+13_B15","doi-asserted-by":"crossref","first-page":"235","DOI":"10.1262\/jrd.46.235","article-title":"The relationship of blood progesterone and estrogen\n                        concentrations on the day before and the day of frozen-thawed embryo\n                        transfer to pregnancy rate in Japanese black beef cattle","volume":"46","author":"Nishigai","year":"2000","journal-title":"J Reprod Dev."},{"key":"key2.0261002113238e+13_B16","doi-asserted-by":"crossref","first-page":"3352","DOI":"10.3168\/jds.2010-3735","article-title":"Concentration of progesterone during the development of the\n                    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during\n                        late pregnancy and postpartum in cows","volume":"90","author":"Henricks","year":"1972","journal-title":"Endocrinology."},{"key":"key2.0261002113238e+13_B20","doi-asserted-by":"crossref","first-page":"1541","DOI":"10.1071\/RD17473","article-title":"Effects of extending the length of pro-oestrus in an oestradiol-\n                        and progesterone-based oestrus synchronisation program on ovarian function,\n                        uterine environment and pregnancy establishment in beef\n                        heifers","volume":"30","author":"de la Mata","year":"2018","journal-title":"Reprod Fertil Dev."},{"key":"key2.0261002113238e+13_B21","doi-asserted-by":"crossref","first-page":"96","DOI":"10.1186\/s40104-020-00501-x","article-title":"Role of nutraceuticals during the transition period of dairy\n                        cows: a review","volume":"11","author":"Lopreiato","year":"2020","journal-title":"J Anim Sci Biotechnol."},{"key":"key2.0261002113238e+13_B22","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1071\/RD15366","article-title":"Pregnancy losses in cattle: potential for\n                        improvement","volume":"28","author":"Diskin","year":"2015","journal-title":"Reprod Fertil Dev."},{"key":"key2.0261002113238e+13_B23","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1016\/j.anireprosci.2018.11.001","article-title":"Factors in cattle affecting embryo transfer pregnancies in\n                        recipient animals","volume":"199","author":"Roper","year":"2018","journal-title":"Anim Reprod Sci."}],"container-title":["Journal of Animal Science and Technology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.ejast.org\/download\/download_pdf?doi=10.5187\/jast.2024.e31","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/www.ejast.org\/download\/download_pdf?doi=10.5187\/jast.2024.e31","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T02:59:53Z","timestamp":1790909993000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.ejast.org\/archive\/view_article?doi=10.5187\/jast.2024.e31"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,11]]},"references-count":23,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2024,11,30]]},"published-print":{"date-parts":[[2024,11]]}},"alternative-id":["10.5187\/jast.2024.e31"],"URL":"https:\/\/doi.org\/10.5187\/jast.2024.e31","relation":{},"ISSN":["2672-0191","2055-0391"],"issn-type":[{"value":"2672-0191","type":"print"},{"value":"2055-0391","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,11]]},"assertion":[{"value":"2023-12-12","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2024-03-01","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}}]}}