Effect of ?-carotene on ovarium functions and ovsynch success in repeat breeder cows

dc.contributor.authorÇelik H.A.
dc.contributor.authorAvci G.
dc.contributor.authorAydin I.
dc.contributor.authorBülbül A.
dc.contributor.authorBülbül T.
dc.date.accessioned2020-03-26T17:41:24Z
dc.date.available2020-03-26T17:41:24Z
dc.date.issued2009
dc.departmentSelçuk Üniversitesi, Veteriner Fakültesi, Klinik Bilimler Bölümüen_US
dc.description.abstractThis study was carried out to determine the effect of ?-carotene on ovarian function and pregnancy rates in repeat breeder cows. Twenty-six repeat breeder Holstein cows were randomly assigned into control (n=11) and carotene (n=15) groups. Cows were fed with diet in the form of total mixed ration (39.80% neutral detergent fiber and 16.20% crude protein of dry matter). Treatment cows received an intramuscular injection of ?-carotene (1 mg/kg) simultaneously with the first GnRH injection. Largest follicle (P<0.05) and corpus luteum diameters (P<0.01) together with serum progesterone (P<0.01), ?-carotene (P<0.05) and vitamin A (P<0.01) levels were all significantly higher in the carotene group on the day of PGF2? injection. At the second GnRH injection, largest follicle diameter (P<0.01), serum estradiol (P<0.01), ?-carotene (P<0.01), and vitamin A (P<0.01) levels were again higher in the carotene group. Serum estradiol (P<0.01) and ?-carotene (P<0.05) levels were still significantly higher in the carotene group at the time of AI. Ovulation response did not differ between groups after both first and second GnRH injection. The pregnancy rate was 27.2% in the control group, and 33.3% in the carotene group but this difference was not statistically significant. In conclusion, it was suggested that ?-carotene did not have any significant effects on ovulation or pregnancy rates in ovsynch-treated repeat breeder cows; however it increased serum estradiol and progesterone levels due to increased follicle size and corpus luteum functionality, respectively.en_US
dc.identifier.citationÇelik, H. A., Avcı, G., Aydın, İ., Bülbül, A., Bülbül, T. (2009). Effect of β-carotene on Ovarium Functions and Ovsynch Success in Repeat Breeder Cows. Kafkas Üniversitesi Veteriner Fakültesi Dergisi, 15(1), 87-94.
dc.identifier.endpage94en_US
dc.identifier.issn1300-6045en_US
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage87en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12395/24056
dc.identifier.volume15en_US
dc.identifier.wosWOS:000263698100015en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorAydin I.
dc.language.isoenen_US
dc.publisherKAFKAS UNIVERSITYen_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.subjectOvaryen_US
dc.subjectOvsynchen_US
dc.subjectPregnancyen_US
dc.subjectRepeat Breedingen_US
dc.subjectβ-caroteneen_US
dc.titleEffect of ?-carotene on ovarium functions and ovsynch success in repeat breeder cowsen_US
dc.typeArticleen_US

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