Effects of presynchronization with gonadotropin-releasing hormone-prostaglandin F-2 alpha or progesterone before Ovsynch in noncyclic dairy cows

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dc.contributor.authorAlkan, Ali
dc.contributor.authorOkut, Hayrettin
dc.contributor.buuauthorYılmazbaş, Gülnaz Mecitoğlu
dc.contributor.buuauthorKarakaya, Ebru
dc.contributor.buuauthorKeskin, Abdülkadir
dc.contributor.buuauthorGümen, Ahmet
dc.contributor.departmentUludağ Üniversitesi/Veteriner Fakültesi/Jinekoloji ve Doğum Anabilim Dalı.tr_TR
dc.contributor.orcid0000-0003-2817-3221tr_TR
dc.contributor.researcheridAAH-3831-2021tr_TR
dc.contributor.researcheridAAG-4440-2019tr_TR
dc.contributor.researcheridAAH-1406-2021tr_TR
dc.contributor.scopusid36457964000tr_TR
dc.contributor.scopusid36457784500tr_TR
dc.contributor.scopusid24473229800tr_TR
dc.contributor.scopusid6602393069tr_TR
dc.date.accessioned2022-05-06T11:55:58Z
dc.date.available2022-05-06T11:55:58Z
dc.date.issued2012-12
dc.description.abstractThe aim of this study was to evaluate the efficiency of presynchronization with GnRH and PGF(2 alpha) or with progesterone on overall Ovsynch (OVS) outcomes in noncyclic dairy cows. Cows were scanned 7 d apart with ultrasonography to determine cyclicity. Noncyclic cows (n = 281; no corpus luteum on ovaries at both examinations) were randomly divided into 3 groups. In the GP group (n = 108), the cows received GnRH and PGF(2 alpha) (PGF) administrations 7 d apart, and OVS was started 11 d after PGF (GnRH-7 d-PGF-11 d-OVS). In the P4 group (n = 90), the cows were treated for 7 d with an intravaginal progesterone (P4) implant (PRID), and then OVS was started 11 d after removal of the implant (7 d PRID-11 d-OVS). The control group (CON, n = 83) did not receive any presynchronization, and OVS was started at the same time as in the other groups (18 d-OVS). The percentage of cows that became cyclic at the beginning of OVS was lower in the CON group (38.6%; 32/83) than in the presynchronization groups (66.7%, 72/108 in GP; 71.1%, 64/90 in P4). The response to the first GnRH of OVS did not differ among groups (63.9%, 53/83 in CON; 67.6%, 73/108 in GP; 63.3%; 57/90 in P4), and synchronization rates were similar among the groups (74-82%). The cows that responded to presynchronization treatments (GP or P4) had higher pregnancy per artificial insemination (P/AI) than did nonresponding cows. Pregnancy per AI at 31 d did not differ between groups (30.1%, 25/83 in CON; 43.5%, 47/108 in GP; and 35.6%, 32/90 in P4). However, CON cows (24.1%, 20/83) had lower P/AI at 62 d than GP cows (41.7%, 45/108). Embryonic loss was higher in CON (20%, 5/25) compared with the P4 group (3%, 1/32). The administration of GnRH followed by PGF or exogenous progesterone (PRID) similarly increased the percentage of cows that became cyclic before Ovsynch in noncyclic cows, but fertility did not improve. However, the cows that responded to presynchronization had higher fertility rates than the nonresponding cows.en_US
dc.identifier.citationYılmazbaş, M. G. vd. (2012). "Effects of presynchronization with gonadotropin-releasing hormone-prostaglandin F-2 alpha or progesterone before Ovsynch in noncyclic dairy cows". Journal of Dairy Science, 95(12), 7186-7194.en_US
dc.identifier.endpage7194tr_TR
dc.identifier.issn0022-0302
dc.identifier.issn1525-3198
dc.identifier.issue12tr_TR
dc.identifier.pubmed23021759tr_TR
dc.identifier.scopus2-s2.0-84869493302tr_TR
dc.identifier.startpage7186tr_TR
dc.identifier.urihttps://doi.org/10.3168/jds.2012-5920
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0022030212007163
dc.identifier.urihttp://hdl.handle.net/11452/26297
dc.identifier.volume95tr_TR
dc.identifier.wos000311192900035tr_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.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.subjectNoncyclic cowen_US
dc.subjectOvsynchen_US
dc.subjectPresynchronizationen_US
dc.subjectProgesteroneen_US
dc.subjectTimed artificial-inseminationen_US
dc.subjectPregnancy ratesen_US
dc.subjectHolstein cowsen_US
dc.subjectOvulationen_US
dc.subjectSynchronizationen_US
dc.subjectProtocolen_US
dc.subjectGnrhen_US
dc.subjectFollicleen_US
dc.subjectCattleen_US
dc.subjectInserten_US
dc.subjectBosen_US
dc.subject.emtreeGonadorelinen_US
dc.subject.emtreeProgesteroneen_US
dc.subject.emtreeProstaglandin F2 alphaen_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.emtreeCorpus luteumen_US
dc.subject.emtreeDairyingen_US
dc.subject.emtreeDrug effecten_US
dc.subject.emtreeEchographyen_US
dc.subject.emtreeEstrusen_US
dc.subject.emtreeEstrus cycleen_US
dc.subject.emtreeFemaleen_US
dc.subject.emtreeMethodologyen_US
dc.subject.emtreePhysiologyen_US
dc.subject.emtreePregnancyen_US
dc.subject.meshAnimalsen_US
dc.subject.meshCattleen_US
dc.subject.meshCorpus luteumen_US
dc.subject.meshDairyingen_US
dc.subject.meshDinoprosten_US
dc.subject.meshEstrusen_US
dc.subject.meshEstrus synchronizationen_US
dc.subject.meshFemaleen_US
dc.subject.meshGonadotropin-releasing hormoneen_US
dc.subject.meshInsemination, artificialen_US
dc.subject.meshPregnancyen_US
dc.subject.meshProgesteroneen_US
dc.subject.scopusArtificial Insemination; Estrus; Estrus Synchronizationen_US
dc.subject.wosAgriculture, dairy & animal scienceen_US
dc.subject.wosFood science & technologyen_US
dc.titleEffects of presynchronization with gonadotropin-releasing hormone-prostaglandin F-2 alpha or progesterone before Ovsynch in noncyclic dairy cowsen_US
dc.typeArticle
dc.wos.quartileQ1en_US

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