The negative effects of cold conditions on pregnancy rates in dairy cows

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dc.contributor.authorCengiz, Mehmet
dc.contributor.departmentOthertr_TR
dc.contributor.facultyOthertr_TR
dc.date.accessioned2022-11-10T12:37:56Z
dc.date.available2022-11-10T12:37:56Z
dc.date.issued2022
dc.description.abstractThis study was conducted to determine the pregnancy rate in response to two sexual synchronization protocols in 70 healthy multiparous Fleckvieh dairy cows during the cold and warm seasons. After pairing by the actual parturition date [cold seasons (-38 to 0 ºC) (Nov - Feb) vs. warm seasons (0 to 32 ºC) (Mar-Oct)], cows were randomly subjected to either Co-Synch (CoS) or double PGF2α injection (dPG) on d 35 postpartum. Data were subjected to Chi-Square (2) analysis to determine the pregnancy rate at the first service. Overall pregnancy rates (%) at the first service were 57.1 and 40.0 for Groups CoS and dPG, respectively (2 = 2.03, P = 0.15) and 35.0 and 66.7% during cold and warm seasons, respectively (2 = 6.78, P = 0.009). The protocol effect on the pregnancy rate at the first service was insignificant during cold (2 = 1.17, P = 0.28) and warm (2 = 1.62, P = 0.20) season. In summary, the cold conditions negatively affected the pregnancy rate at the first service. The synchronization protocol methods did not differ to improve the pregnancy rate at the first service when cows were exposed to cold conditions.tr_TR
dc.description.indexTrdizintr_TR
dc.identifier.urihttps://doi.org/10.33988/auvfd.791139tr_TR
dc.identifier.urihttp://hdl.handle.net/20.500.12575/85378
dc.language.isoentr_TR
dc.publisherAnkara Üniversitesi Veteriner Fakültesitr_TR
dc.relation.isversionof10.33988/auvfd.791139tr_TR
dc.relation.journalAnkara Üniversitesi Veteriner Fakültesi Dergisitr_TR
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Başka Kurum Yazarıtr_TR
dc.subjectdairy cowtr_TR
dc.subjectsynchronization protocol,tr_TR
dc.subjectfirst servicetr_TR
dc.titleThe negative effects of cold conditions on pregnancy rates in dairy cowstr_TR
dc.typeArticletr_TR

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Cilt:69 Sayı:01 (2022)