Examinando por Autor "Chauca Guamán, Jennifer Eliana"
Mostrando 1 - 1 de 1
Resultados por página
Opciones de ordenación
- ÍtemAcceso AbiertoEstimulación folicular con FSH recombinante bovina previo a la opu en vacas Holstein(Universidad Católica de Cuenca., 2024) Chauca Guamán, Jennifer Eliana; Argudo Garzón, Daniel Ernesto; 0350173571Ultrasound-guided follicular aspiration has been recognized as an effective technique for obtaining high-quality oocytes in cows with high genetic value, especially when combined with prior follicular synchronization protocols. Over the decades, the use of conventional FSH in follicular hyperstimulation protocols has faced challenges, such as the need for multiple doses to maintain its biological activity and the risk of contamination and variability between batches. In response to this, recombinant gonadotropins such as recombinant bovine FSH (rFSH) have emerged as a promising alternative. Purified by affinity chromatography, rFSH offers higher purity and hormonal stability. In this experimental research, the use of rFSH in follicular stimulation of Holstein cows was evaluated, and it was compared with standard hormonal synchronization. The results suggest that rFSH, compared to the control protocol, did not yield significant differences in follicular development and consequently in the recovery rate. However, numerical differences were observed (rFSH= 50.63 + 19.22; Control= 45.85 + 19.22). Similarly, the oocyte recovery rate based on category shows similarity in results, with categories I and II highlighted as more recovered. This approach could potentially represent a significant advancement in the next stage, specifically in the production of in vitro embryos in dairy farming, enhancing the efficiency and profitability of the process. Keywords: rbFSH, OPU, Follicular Stimulation, Reproduction