Effect of presence of corpus luteum at the beginning of ovsynch protocol on pregnancy rates in lactating dairy cows

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dc.contributor.authorCinar, Mahmut
dc.contributor.authorGuzeloglu, Aydin
dc.contributor.authorErdem, Huseyin
dc.date.accessioned2020-03-26T18:25:04Z
dc.date.available2020-03-26T18:25:04Z
dc.date.issued2012
dc.departmentSelçuk Üniversitesi, Veteriner Fakültesi, Klinik Bilimler Bölümüen_US
dc.description.abstractThe aim of the study was to investigate the effect of presence of CL at the beginning of Ovsynch protocol on pregnancy rates in lactating dairy cows. A total of 218 lactating Holstein cows that were at least 45 days postpartum with no reproductive disorders were used in the present study. Cows were divided into two experimental groups according to the presence and absence of corpus luteum (CL) on the first day of transrectal ultrasonography (day 0). Cows having CL (CL (+)) were randomly allocated to two subgroups as CL (+)/A and CL (+)/B. Cows in CL (+)/A group (n = 74) were treated with Ovsynch protocol, while cows in CL (+)/B group (n = 78) were treated with PGF(2 alpha) on the first day of examination and seven days later Ovsynch protocol was started. Cows having no CL (CL (-)) (n = 66) were left untreated on the first day of examination and Ovsynch protocol was started seven days later. Pregnancy rates were found 23%, 25.6% and 40.9% in CL (+)/A, CL (+)/B and CL (-) groups, respectively. The pregnancy rate in CL (-) group was significantly higher than those of CL (+)/A, and CL (+)/B groups (P<0.05). It is suggested that the success of Ovsynch synchronization protocol may be related to starting time of the protocol and to ovarian physiology in cyclic dairy cows.en_US
dc.description.sponsorshipNigde University Research Project UnitOmer Halis Demir University [2008/21]en_US
dc.description.sponsorshipAuthors thanks to Nigde University Research Project Unit (Project number: 2008/21) for financial assistance and Kocas Farm, General Directorate of Agricultural Enterprises (TIGEM) for animal material.en_US
dc.identifier.citationÇınar, M., Güzeloğlu, A., Erdem, H. (2012). Effect of Presence of Corpus Luteum at the Beginning of Ovsynch Protocol on Pregnancy Rates in Lactating Dairy Cows. Kafkas Üniversitesi Veteriner Fakültesi Dergisi, 18(3), 513-516.
dc.identifier.endpage516en_US
dc.identifier.issn1300-6045en_US
dc.identifier.issue3en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage513en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12395/27951
dc.identifier.volume18en_US
dc.identifier.wosWOS:000302602000027en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.institutionauthorGuzeloglu, Aydin
dc.institutionauthorErdem, Huseyin
dc.language.isoenen_US
dc.publisherKAFKAS UNIV, VETERINER FAKULTESI DERGISIen_US
dc.relation.ispartofKAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISIen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectCowen_US
dc.subjectOvsynchen_US
dc.subjectCorpus Luteumen_US
dc.subjectPregnancy rateen_US
dc.titleEffect of presence of corpus luteum at the beginning of ovsynch protocol on pregnancy rates in lactating dairy cowsen_US
dc.typeArticleen_US

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