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Showing 1 to 9 of 9 for “"Ovsynch"”.
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Methods to Synchronize Estrus, Enhance Pregnancy, and Rescue Embryos in Cattle
… 92% and PR for anestrous cows differed (P 0.05; OvSynch-50% vs OvSynch+IPI-59%). Administration of an IPI at ET did not improve PR (P = 0.55). New functional CL induced by hCG in cows that had spontaneous CL regression subsequent to ET resulted in the rescue of 3/6 pregnancies. Inclusion of a …
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Utilizacion del metodo Ovsynch (ovulacion sincronizada) en hembras bovinas receptoras para transplante de embriones en la finca Santa Rosa - UNA, Managua
… fue determinar la efectividad del método Ovsynch (ovulación sincronizada) en la inducción de la ovulación en hembras bovinas receptoras. El tamaño de la muestra utilizado fue de 20 hembras receptoras; las cuales fueron previamente seleccionadas según la condición corporal, la edad …
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Synchronization and Resynchronization of Ovulation and Timed Insemination in Lactating Dairy Cows and Heifers
… cows were synchronized with CIDR devices or Ovsynch. The CIDR group received a combination of ECP, CIDR, PGF2α, and GnRH, while the Ovsynch group was synchronized using a combination of GnRH and PGF2α. Cows were bred at either 0, 8, or 24 h after the final GnRH injection. Overall PR for first …
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Suplementação mineral e desempenho reprodutivo no período pós-parto de vacas primíparas de corte
… resposta à sincronização utilizando o protocolo Ovsynch após a estação de monta (EM). Foram utilizadas setenta e duas vacas primíparas de corte da raça Nelore, provenientes do rebanho de uma propriedade localizada em Curvelo-MG, separadas ao acaso em dois grupos, um com suplemento mineral comum …
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Efficacy of Synthetic Gonadotropin Releasing Hormone Analogs for Control of Ovulation During Estrus Synchronization Protocols
… assigned CYS or FAC treatment as part of the Ovsynch protocol (GnRH d 0 and 9, Lutalyse d 7). Cattle treated with FAC had greater tendency (P=.09) to be pregnant at d 45. One individual herd demonstrated FAC-treated cows had more pregnancies at day 45. In Experiment two, 18 beef cows received …
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Fertility after timed artific[i]al insemination in response to a Controlled Internal Drug Release (CIDR) insert in lactating dairy cows
… protocol. Cows were enrolled in a Presynch + Ovsynch protocol after parturition, where they received 2 injections of PGF[subscript]2[alpha], 14 d apart (Presynch) beginning between 30 and 36 DIM. Cows (n = 155) detected in estrus after the second PGF[subscript]2[alpha] injection of Presynch …
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Reproductive performance of Holstein cows treated with prostaglandin F2a, gonadotropin releasing hormone, and recombinant bovine Somatotropin
… d after PGF2α, and were inseminated 8-18h later (OvSynch). First service conception rate (CR) was determined by rectal palpation at 42 ± 7 d after artificial insemination (AI). Treated cows (n=113) received rbST 67 ± 7 d PP whereas control cows (n = 113) were presynchronized without rbST. The …
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The Interaction of Sire Fertility and Timing of AI in a Synchronization Protocol
… or 24 h after GnRH administration, in a Presynch-Ovsynch protocol influenced the pregnancy rate (PR) when average and high fertility sires were used. Additionally, a second experiment was conducted to determine the effectiveness of CIDR inserts to allow for resynchronization of estrus in cows that …
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Holstein heifer behaviors and lactating cow nutritional management for improved reproductive performance on dairy farms
… protocol starting on d 1 of each period (Ovsynch®: 100mg GnRH at d 1, 25mg PGF2α at d 7, and 48 h later an application of 100mg of GnRH) was used to stimulate periods of high and low interactions. Ovaries were examined via ultrasound imaging on d 1, 8, and 10 of each period. Statistical …