{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T22:24:55Z","timestamp":1774995895153,"version":"3.50.1"},"reference-count":31,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2013,7,5]],"date-time":"2013-07-05T00:00:00Z","timestamp":1372982400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animal Science Journal"],"published-print":{"date-parts":[[2014,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Oxytocin (<jats:styled-content style=\"fixed-case\">OXT<\/jats:styled-content>) contained in boar semen is known to produce uterine contraction; therefore, we hypothesized that the co\u2010injection of <jats:styled-content style=\"fixed-case\">OXT<\/jats:styled-content> with sperm would improve artificial insemination (<jats:styled-content style=\"fixed-case\">AI<\/jats:styled-content>) using liquid or frozen\u2010thawed boar sperm. We initially examined whether <jats:styled-content style=\"fixed-case\">OXT<\/jats:styled-content> added to semen extender improved sperm transport to the oviduct. Although the addition of <jats:styled-content style=\"fixed-case\">OXT<\/jats:styled-content> did not affect the fresh or frozen\u2010thawed sperm motility or acrosomal integrity, it significantly increased the number of sperm in the oviduct at 6\u2009h after <jats:styled-content style=\"fixed-case\">AI<\/jats:styled-content> injection with <jats:styled-content style=\"fixed-case\">OXT<\/jats:styled-content>, as compared with the control (<jats:italic>P\u2009&lt;<\/jats:italic>\u20090.05). Moreover, some sperm were observed in the sperm reservoir of the isthmus in the <jats:styled-content style=\"fixed-case\">OXT<\/jats:styled-content> treatment group, whereas few sperm were observed in the control. When <jats:styled-content style=\"fixed-case\">OXT<\/jats:styled-content> was added to the semen extender immediately prior to <jats:styled-content style=\"fixed-case\">AI<\/jats:styled-content>, the conception rates were significantly higher in both fresh semen and frozen\u2010thawed semen than in the control group (<jats:italic>P\u2009&lt;<\/jats:italic>\u20090.05: liquid, 87.5% vs. 70.5%; frozen\u2010thawed, 89.8% vs. 75.0%). From these results, we concluded that the addition of <jats:styled-content style=\"fixed-case\">OXT<\/jats:styled-content> to the semen extender assisted in sperm transportation from the uterus to the oviduct, which resulted in improved reproductive performance.<\/jats:p>","DOI":"10.1111\/asj.12089","type":"journal-article","created":{"date-parts":[[2013,7,5]],"date-time":"2013-07-05T11:44:37Z","timestamp":1373024677000},"page":"8-14","source":"Crossref","is-referenced-by-count":13,"title":["Addition of oxytocin to semen extender improves both sperm transport to the oviduct and conception rates in pigs following <scp>AI<\/scp>"],"prefix":"10.1111","volume":"85","author":[{"given":"Tetsuji","family":"Okazaki","sequence":"first","affiliation":[{"name":"Smaller Livestock and Environment Section Livestock Research Institute Oita Prefectural Agriculture, Forestry and Fisheries Research Center  Bungo\u2010ono Oita Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Erena","family":"Ikoma","sequence":"additional","affiliation":[{"name":"Livestock Research Institute Kagoshima Prefectural Institute for Agricultural Development  Kirishima Kagoshima Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tukasa","family":"Tinen","sequence":"additional","affiliation":[{"name":"Okinawa Prefectural Livestock and Grassland Research Center  Nakijin Okinawa Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Teiichi","family":"Akiyoshi","sequence":"additional","affiliation":[{"name":"Smaller Livestock and Environment Section Livestock Research Institute Oita Prefectural Agriculture, Forestry and Fisheries Research Center  Bungo\u2010ono Oita Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Manabu","family":"Mori","sequence":"additional","affiliation":[{"name":"Smaller Livestock and Environment Section Livestock Research Institute Oita Prefectural Agriculture, Forestry and Fisheries Research Center  Bungo\u2010ono Oita Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hisanori","family":"Teshima","sequence":"additional","affiliation":[{"name":"Smaller Livestock and Environment Section Livestock Research Institute Oita Prefectural Agriculture, Forestry and Fisheries Research Center  Bungo\u2010ono Oita Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2013,7,5]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/j.1939-4640.2000.tb03268.x"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1292\/jvms.11-0273"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1677\/joe.0.1260361"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0093-691X(02)00947-0"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrd.1080250204"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.anireprosci.2004.12.011"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.theriogenology.2004.06.016"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1530\/rep.0.1220889"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cryobiol.2009.02.003"},{"key":"e_1_2_6_11_1","first-page":"561","article-title":"[Control of fertility outcome in artificially inseminated gilts and old sows. 2: addition of oxytocin to boar semen. 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