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Ovarian follicular changes and hemodynamics in Egyptian buffaloes under CIDR-PGF2α and Ovsynch-CIDR estrus synchronization treatments.
Samir, Haney; Kandiel, Mohamed M M; El-Maaty, Amal M Abo; Sediqyar, Manila; Sasaki, Kazuaki; Watanabe, Gen.
Afiliación
  • Samir H; Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.
  • Kandiel MMM; Department of Theriogenology, Faculty of Veterinary Medicine, Benha University, Kaliobeya, Egypt.
  • El-Maaty AMA; Department of Animal Reproduction and Artificial Insemination, Veterinary Research Division, National Research Centre, Cairo 12622, Egypt.
  • Sediqyar M; Preclinic Department, Faculty of Veterinary Science, Kabul University, Kabul, Afghanistan.
  • Sasaki K; Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan.
  • Watanabe G; Laboratory of Veterinary Physiology, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan.
J Reprod Dev ; 65(5): 451-457, 2019 Oct 23.
Article en En | MEDLINE | ID: mdl-31406064
This study aimed at investigating the efficacy of two protocols of estrous synchronization on follicular changes and hemodynamics. Pluriparous Egyptian buffaloes (n = 36) were synchronized either with controlled internal drug release (CIDR)-PGF2α (7-days CIDR insert with PGF2α injected on the 6th day; n = 18) or Ovsynch-CIDR (Ovsynch protocol concurrent with 7-days CIDR insert; n = 18). Blood sampling and ovarian ultrasound examinations (Grayscale, color and power Doppler modes) were conducted on the Day of CIDR removal, estrus, and luteal phase. Mean follicle diameter (MFD), first (1st-LF) and second (2nd-LF) largest follicle diameters, and E2 levels significantly increased in the CIDR-PGF2α group at CIDR withdrawal. Ovsynch-CIDR markedly fortified higher follicle population, MFD, and 1st-LF diameter at estrus and corpus luteum (CL) volume at the luteal phase in concomitant with increases (P < 0.05) in E2 (at estrus) and P4 (at luteal phase). At CIDR removal, the blue pixels in the dominant follicle (DF) were higher (1.5 times; P = 0.054) in the Ovsynch-CIDR than in the CIDR-PGF2α. At estrus, total blood flow (TBF) and power Doppler pixels (PDP) to DF(s) were noticeably higher (seven and 1.6 times; respectively) in the Ovsynch-CIDR than in CIDR-PGF2α (5906 ± 237 vs. 830 ± 60 pixels, P < 0.01 and 5479 ± 322 vs. 3377 ± 19 pixels, P < 0.05; respectively). At the luteal phase, TBF and PDP to the CL increased in the Ovsynch-CIDR group than in the CIDR-PGF2α group (11060 ± 965 vs. 7963 ± 480 pixels, 1.4 times, P = 0.05 and 18900 ± 1350 vs. 13220 ± 568 pixels, 1.1 times, P = 0.005; respectively). In conclusion, based on the improvement in synchronized follicular activity and hemodynamics, the Ovsynch-CIDR regimen is persuaded in Egyptian buffaloes.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Inseminación Artificial / Dinoprost / Sincronización del Estro / Folículo Ovárico Límite: Animals Idioma: En Revista: J Reprod Dev Asunto de la revista: MEDICINA REPRODUTIVA Año: 2019 Tipo del documento: Article País de afiliación: Egipto Pais de publicación: Japón
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Inseminación Artificial / Dinoprost / Sincronización del Estro / Folículo Ovárico Límite: Animals Idioma: En Revista: J Reprod Dev Asunto de la revista: MEDICINA REPRODUTIVA Año: 2019 Tipo del documento: Article País de afiliación: Egipto Pais de publicación: Japón