Articles | Volume 68, issue 1
https://doi.org/10.5194/aab-68-101-2025
https://doi.org/10.5194/aab-68-101-2025
Original study
 | 
11 Feb 2025
Original study |  | 11 Feb 2025

Effect on OPU/IVEP success of different applications for synchronizing follicular waves prior to superstimulation in holstein heifers

Muhammed Furkan Çiftçi, Ömer Faruk Yeşilkaya, Sakine Ülküm Çizmeci, Maide Gölbaşı, Ayşe Sarı, and Dursun Ali Dinç

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Cited articles

Adams, G. P.: Control of ovarian follicular wave dynamics in cattle: Implication for synchronization and supersimulation, Theriogenology, 41, 25–30, 1994. 
Aerts, J. M. J. and Bols, P. E. J.: Ovarian follicular dynamics: a review with emphasis on the bovine species, Part I: Folliculogenesis and pre-antral follicle development, Reprod. Domest. Anim., 45, 171–179, 2010. 
Alkan, H., Satilmis, F., Demirel, M. A., Bodu, M., Yesilkaya, O. F., Ciftci, M. F., Erdem, H., Tekindal, M. A., and Alkan, K. K.: Does using microfluidic sperm sorting chips in bovine IVEP affect blastocyst development?, Reprod. Domest. Anim., 58, 1012–1020, 2023. 
Bacelar, D., Max, M. C., Padilha, L. C., Barreiros, T. R. R., and Seneda, M. M.: Incremento na obtenção de oócitos em novilhas Nelore (Bos taurus indicus) tratadas com progesterona injetável e benzoato de estradiol, Semina: Ciênc. Agrár., 31, 163–172, 2010. 
Bergfelt, D. R., Lightfoot, K. C., and Adams, G. P.: Ovarian dynamics following ultrasound-guided transvaginal follicle ablation in cyclic heifers, Theriogenology, 42, 895–907, https://doi.org/10.1016/0093-691x(94)90113-w, 1994. 
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In this study, short synchronization methods that do not contain estradiol before superstimulation in ovum pickup (OPU) applications were investigated. The gonadotropin-releasing hormone (GnRH), human chorionic gonadotropin (hCG), and dominant follicle removal (DFR) were used for follicular wave emergence. It was determined that DFR and hCG for follicular wave emergence increased oocyte yield and in vitro embryo production success in pre-superstimulation synchronization protocols.
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