Presynchronization with Double-Ovsynch improves fertility at first postpartum artificial insemination in lactating dairy cows

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dc.contributor.authorHerlihy, Mary M.
dc.contributor.authorGiordano, Julio O.
dc.contributor.authorSouza, Alex H.
dc.contributor.authorAyres, Henderson
dc.contributor.authorFerreira, Roberta M.
dc.contributor.authorNascimento, Anibal B.
dc.contributor.authorGuenther, Jerry N.
dc.contributor.authorGaska, Jerry M.
dc.contributor.authorKacuba, S. J.
dc.contributor.authorCrowe, Mark A.
dc.contributor.authorButler, Stephen T.
dc.contributor.authorWiltbank, Milo C.
dc.contributor.buuauthorKeskin, Abdulkadir
dc.contributor.departmentUludağ Üniversitesi/Veteriner Fakültesi/Doğum ve Jinekoloji Ana Bilim Dalı.tr_TR
dc.contributor.researcheridAAH-3831-2021tr_TR
dc.contributor.scopusid24473229800tr_TR
dc.date.accessioned2022-02-28T09:14:19Z
dc.date.available2022-02-28T09:14:19Z
dc.date.issued2012-12
dc.description.abstractThe objective of this study was to compare circulating progesterone (P4) profiles and pregnancies per AT (P/AI) in lactating dairy cows bred by timed artificial insemination (TAT) following Ovsynch-56 after 2 different presynchronization protocols: Double-Ovsynch (DO) or Presynch-Ovsynch (PS). Our main hypothesis was that DO would increase fertility in primiparous cows, but not in multiparous cows. Within each herd (n = 3), lactating dairy cows (n = 1,687; 778 primiparous, 909 multiparous) were randomly assigned to DO [n = 837; GnRH-7d-PGF(2 alpha)-3d-GnRH-7d-Ovsynch-56 (GnRH-7d-PGF(2 alpha)-56h-GnRH-16hTAI)] or PS (n = 850; PGF(2 alpha)-14d-PGF(2 alpha)-12d-Ovsynch-56). In 1 herd, concentrations of P4 were determined at the first GnRH (GnRH1) of Ovsynch-56 and at d 11 after TAI (n = 739). In all herds, pregnancy was diagnosed by palpation per rectum at 39 d. In 1 herd, the incidence of late embryo loss was determined at 74 d, and data were available on P/AI at the subsequent second service. Presynchronization with DO reduced the percentage of animals with low P4 concentrations (<0.50 ng/mL) at GnRH1 of Ovsynch-56 (5.4 VS. 25.3%, DO vs. PS). A lesser percentage of both primiparous and multiparous cows treated with DO had low P4 concentrations at GnRH1 of Ovsynch-56 (3.3 vs. 19.7%, DO vs. PS primiparous; and 8.8 vs. 31.9%, DO vs. PS multiparous). Presynchronization with DO improved P/AI at the first postpartum service (46.3 vs. 38.2%, DO vs. PS). Statistically, a fertility improvement could be detected for primiparous cows treated with DO (52.5 vs. 42.3%, DO vs. PS, primiparous), but only a tendency could be detected in multiparous cows (40.3 vs. 34.3%, DO vs. PS, multiparous), consistent with our original hypothesis. Presynchronization treatment had no effect on the incidence of late embryo loss after first service (8.5 vs. 5.5%, DO vs. PS). A lower body condition score increased the percentage of cows with low P4 at GnRH1 of Ovsynch-56 and reduced fertility to the TAI. In addition, P4 concentration at d 11 after TAI was reduced by DO. The method of presynchronization at first service had no effect on P/AI at the subsequent second service (34.7 vs. 36.5%, DO vs. PS). Thus; presynchronization with DO induced cyclicity in most anovular cows and improved fertility compared with PS, suggesting that DO could be a useful reproductive management protocol for synchronizing first service in commercial dairy herds.en_US
dc.identifier.citationHerlihy, M. M. vd. (2012). "Presynchronization with Double-Ovsynch improves fertility at first postpartum artificial insemination in lactating dairy cows". Journal of Dairy Science, 95(12), 7003-7014.en_US
dc.identifier.endpage7014tr_TR
dc.identifier.issn0022-0302
dc.identifier.issn1525-3198
dc.identifier.issue12tr_TR
dc.identifier.pubmed23021750tr_TR
dc.identifier.scopus2-s2.0-84869496317tr_TR
dc.identifier.startpage7003tr_TR
dc.identifier.urihttps://doi.org/10.3168/jds.2011-5260
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0022030212007047
dc.identifier.urihttp://hdl.handle.net/11452/24724
dc.identifier.volume95tr_TR
dc.identifier.wos000311192900019tr_TR
dc.indexed.pubmedPubmeden_US
dc.indexed.scopusScopusen_US
dc.indexed.wosSCIEen_US
dc.language.isoenen_US
dc.publisherElsevier Scienceen_US
dc.relation.collaborationYurt dışıtr_TR
dc.relation.collaborationSanayitr_TR
dc.relation.journalJournal of Dairy Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergitr_TR
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAgricultureen_US
dc.subjectFood science & technologyen_US
dc.subjectPresynchronizationen_US
dc.subjectOvsynchen_US
dc.subjectDairy cowen_US
dc.subjectPregnancy rateen_US
dc.subjectBody conditionen_US
dc.subjectReproductive-performanceen_US
dc.subjectOvulatory follicleen_US
dc.subjectHormone injectionen_US
dc.subjectPregnancy ratesen_US
dc.subjectMilk-productionen_US
dc.subjectRisk-factorsen_US
dc.subjectSynchronizationen_US
dc.subjectAnimaliaen_US
dc.subjectBosen_US
dc.subject.emtreeProgesteroneen_US
dc.subject.emtreeAnimalen_US
dc.subject.emtreeAnimal diseaseen_US
dc.subject.emtreeArticleen_US
dc.subject.emtreeArtificial inseminationen_US
dc.subject.emtreeBlooden_US
dc.subject.emtreeCattleen_US
dc.subject.emtreeDrug effecten_US
dc.subject.emtreeEchographyen_US
dc.subject.emtreeEstrus cycleen_US
dc.subject.emtreeFemaleen_US
dc.subject.emtreeFertilityen_US
dc.subject.emtreeLactationen_US
dc.subject.emtreeMethodologyen_US
dc.subject.emtreeOvaryen_US
dc.subject.emtreeParityen_US
dc.subject.emtreePhysiologyen_US
dc.subject.emtreePregnancyen_US
dc.subject.meshAnimalsen_US
dc.subject.meshCattleen_US
dc.subject.meshEstrus synchronizationen_US
dc.subject.meshFemaleen_US
dc.subject.meshFertilityen_US
dc.subject.meshInsemination, artificialen_US
dc.subject.meshLactationen_US
dc.subject.meshOvaryen_US
dc.subject.meshParityen_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.titlePresynchronization with Double-Ovsynch improves fertility at first postpartum artificial insemination in lactating dairy cowsen_US
dc.typeArticle
dc.wos.quartileQ1en_US

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