Estrus synchronization using progesterone+different gonadotropins or flushing+ram effect in the breeding season in sheep

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dc.contributor.authorKırbaş, Mesut
dc.contributor.authorKöse, Mehmet
dc.contributor.authorBülbül, Bülent
dc.contributor.authorDursun, Şükrü
dc.contributor.authorDemirci, Uğur
dc.contributor.authorErduran, Hakan
dc.contributor.authorSarı, Deniz
dc.date.accessioned2025-07-10T13:02:48Z
dc.date.available2025-07-10T13:02:48Z
dc.date.issued2025
dc.departmentVeteriner Fakültesi
dc.description.abstract. The effect of different doses of Equine Chorionic Gonadotropin (eCG)or a dose of folliclestimulating hormone (FSH) in a progesterone-based estrus synchronization protocol or flushing+ram effect on fertility in the breeding season were examined on Konya Merino ewes. Materials and methods. Ewes were divided into six groups. Estrus of ewes in eCG-300, eCG-500, eCG-700, and FSH-10 groups was synchronized with an intravaginal sponge containing progesterone (Chronogest, 20 mg flugestone acetate, Intervet, Türkiye 20 mg)-derived for 12 days, and PGF2α injected one day before sponge removal. eCG-300, eCG-500, and eCG-700 groups received 300, 500, or 700 IU of eCG, respectively, at the time of PGF2α injection while FSH-10 group received 10 IU of FSH with sponge removal. In these four groups, estrus was detected for 5 days following sponge removal. Flushing+ram effect (F+RE) group ewes received dietary supplements for 28 days and ram effect for 14 days before the start of the mating period and were monitored for estrus for 4 weeks later. Control ewes monitored for estrus for two months without any treatment. Results. Birth rate was higher in F+RE group than eCG-500 and FSH-10 groups (p<0.05). Litter size was higher in eCG-700 group than F+RE and control groups (p<0.05). Fecundity was higher in eCG-700 group than FSH-10 group (p<0.05). Conclusions. 300 IU eCG at the end of progesterone application was sufficient to induce multiple lambing during the breeding season. Moreover, to increase lamb production should be taken necessary management measures for improve survival to weaning of multiple-born lambs.
dc.identifier.doi10.21897/rmvz.3570
dc.identifier.endpage92
dc.identifier.issn01220268
dc.identifier.issue2
dc.identifier.scopus105007897139
dc.identifier.startpage86
dc.identifier.urihttps://dx.doi.org/10.21897/rmvz.3570
dc.identifier.urihttps://hdl.handle.net/20.500.12451/13245
dc.identifier.volume30
dc.identifier.wosqualityQ4
dc.indekslendigikaynakScopus
dc.indekslendigikaynakWeb of Science
dc.institutionauthorDursun, Şükrü
dc.language.isoen
dc.publisherBiblioteca Universidad de Cordoba
dc.relation.ispartofRevista MVZ Cordoba
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectEstrus
dc.subjectEwe
dc.subjectFSH
dc.subjectGonadotropins
dc.subjectProgesterone
dc.subjectReproduction (Source: CAB)
dc.subjectSynchronization
dc.titleEstrus synchronization using progesterone+different gonadotropins or flushing+ram effect in the breeding season in sheep
dc.title.alternativeSincronización del estro mediante progesterona+diferentes gonadotropinas o rubor+efecto carnero en época reproductiva en ovejas
dc.typeArticle

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