Comparison of responses to Ovsynch between Holstein-Friesian and Swedish Red cows

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dc.contributor.authorÇelik, Yakup
dc.contributor.authorOkut, Hayrettin
dc.contributor.authorWiltbank, Milo Charles
dc.contributor.buuauthorKeskin, Abdülkadir
dc.contributor.buuauthorMecitoğlu, Gülnaz Yılmazbaş
dc.contributor.buuauthorGümen, Ahmet
dc.contributor.buuauthorKarakaya, Ebru
dc.contributor.departmentUludağ Üniversitesi/Veterinerlik Fakültesi/Kadın Hastalıkları ve Doğum Anabilim Dalı.tr_TR
dc.contributor.orcid0000-0003-2817-3221tr_TR
dc.contributor.researcheridAAH-1406-2021tr_TR
dc.contributor.researcheridAAG-4440-2019tr_TR
dc.contributor.researcheridAAH-3831-2021tr_TR
dc.contributor.scopusid24473229800tr_TR
dc.contributor.scopusid36457964000tr_TR
dc.contributor.scopusid6602393069tr_TR
dc.contributor.scopusid36457784500tr_TR
dc.date.accessioned2022-01-07T12:50:10Z
dc.date.available2022-01-07T12:50:10Z
dc.date.issued2011-04
dc.description.abstractThe Ovsynch protocol was designed to synchronize ovulation, thereby allowing timed artificial insemination (TAI) of all cows without detection of estrus. However, the effectiveness of Ovsynch in different breeds of dairy cows has not been previously compared. The aim of this study was to compare the response to Ovsynch in cycling lactating Holstein-Friesian (HF) and Swedish Red (SR) dairy cows. A total of 495 cyclic cows (n = 347 HF, n = 148 SR) were housed together and treated with Ovsynch (GnRH - 7 d - PGF(2 alpha) - 56 h - GnRH - 16 to 18 h - TAI). Ovulatory responses, synchronization rate, maximal follicle size at the time of AI, and percentage of pregnant cows per AI (P/AI at 31 and 62 d after AI) were compared between breeds. Ultrasonography was performed during Ovsynch at first GnRH, PGF(2 alpha), at time of AI, and 7 d after AI. Ovulatory response and synchronization rate were similar in HF versus SR cows (60.2 vs. 62.2%; 88.4 vs. 88.5%, respectively). Cows that ovulated to the first GnRH of Ovsynch had smaller follicle size at AT (15.9 +/- 0.1 vs. 16.4 +/- 0.2 mm). Maximal follicle size at AT was greater for HF (16.4 +/- 2.2 mm) than SR (15.5 +/- 2.3 mm) cows. The P/AI was greater for SR than HF cows at the 62-d pregnancy diagnosis (56.1 vs. 46.1%). In addition, pregnancy loss between 31 and 62 d of pregnancy was greater in HF (10.1%) than SR (3.5%) cows. Fertility was less in HF cows during the hot season (57.7 in cold vs. 38.1% in the hot season), whereas such a decrease was not observed in SR (60.0 in cold vs. 53.5% in the hot season) cows. Thus, although the GnRH treatments of Ovsynch were equally effective in SR and HF cows, pregnancy outcomes (P/AI at d 62 and pregnancy survival) were greater in SR than HF cows, and P/AI in SR cows was not compromised during the hot season as was found for HF cows.en_US
dc.identifier.citationKeskin, A. vd. (2011). "Comparison of responses to Ovsynch between Holstein-Friesian and Swedish Red cows". Journal of Dairy Science, 94(4), 1784-1789.en_US
dc.identifier.endpage1789tr_TR
dc.identifier.issn0022-0302
dc.identifier.issn1525-3198
dc.identifier.issue4tr_TR
dc.identifier.pubmed21426967tr_TR
dc.identifier.scopus2-s2.0-79952746851tr_TR
dc.identifier.startpage1784tr_TR
dc.identifier.urihttps://doi.org/10.3168/jds.2010-3579
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0022030211001469
dc.identifier.urihttp://hdl.handle.net/11452/23934
dc.identifier.volume94tr_TR
dc.identifier.wos000288641800017tr_TR
dc.indexed.pubmedPubmeden_US
dc.indexed.scopusScopusen_US
dc.indexed.wosSCIEen_US
dc.language.isoenen_US
dc.publisherElsevier Scienceen_US
dc.relation.collaborationYurt içitr_TR
dc.relation.collaborationYurt dışıtr_TR
dc.relation.collaborationSanayitr_TR
dc.relation.journalJournal of Dairy Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergitr_TR
dc.relation.tubitakTOVAG 107O227tr_TR
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAgricultureen_US
dc.subjectFood science & technologyen_US
dc.subjectBreeden_US
dc.subjectDairy cowen_US
dc.subjectOvsynchen_US
dc.subjectReproductionen_US
dc.subjectTimed artificial-inseminationen_US
dc.subjectLactating dairy-cowsen_US
dc.subjectReproductive managementen_US
dc.subjectPreimplantation embryosen_US
dc.subjectConception rateen_US
dc.subjectSynchronizationen_US
dc.subjectOvulationen_US
dc.subjectProtocolen_US
dc.subjectFertilityen_US
dc.subjectCattleen_US
dc.subjectFriesiaen_US
dc.subject.emtreeAnimalen_US
dc.subject.emtreeAnimal diseaseen_US
dc.subject.emtreeArticleen_US
dc.subject.emtreeArtificial inseminationen_US
dc.subject.emtreeCattleen_US
dc.subject.emtreeComparative studyen_US
dc.subject.emtreeEstrus cycleen_US
dc.subject.emtreeFemaleen_US
dc.subject.emtreeHistologyen_US
dc.subject.emtreeLactationen_US
dc.subject.emtreeMethodologyen_US
dc.subject.emtreeOvary follicleen_US
dc.subject.emtreeOvulationen_US
dc.subject.emtreePhysiologyen_US
dc.subject.emtreePregnancyen_US
dc.subject.emtreePregnancy rateen_US
dc.subject.emtreeSecies differenceen_US
dc.subject.meshAnimalsen_US
dc.subject.meshCattleen_US
dc.subject.meshEstrous cycleen_US
dc.subject.meshEstrus synchronizationen_US
dc.subject.meshFemaleen_US
dc.subject.meshInsemination, artificialen_US
dc.subject.meshLactationen_US
dc.subject.meshOvarian follicleen_US
dc.subject.meshOvulationen_US
dc.subject.meshPregnancyen_US
dc.subject.meshPregnancy rateen_US
dc.subject.meshSpecies specificityen_US
dc.subject.scopusArtificial Insemination; Estrus; Estrus Synchronizationen_US
dc.subject.wosAgriculture, dairy & animal scienceen_US
dc.subject.wosFood science & technologyen_US
dc.titleComparison of responses to Ovsynch between Holstein-Friesian and Swedish Red cowsen_US
dc.typeArticle
dc.wos.quartileQ1en_US

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