Manejo de aspiração folicular transvaginal guiada por ultrassom em bovinos da raça Gir

Abstract

Introduction: The strategic implementation of assisted reproduction programs has proven beneficial in dairy and beef cattle farms, improving reproductive outcomes and increasing profitability. This study focuses on the management of transvaginal ultrasound-guided follicular aspiration technique. Objectives: To detail the management of transvaginal ultrasound-guided follicular aspiration technique and analyze its results in dairy and beef cattle farms. To investigate the ideal frequency of follicular aspiration for the recovery of high-quality oocytes. Methodology: Data were collected on the application of follicular aspiration technique in females of good genetic lineage at different reproductive stages. The frequency of follicular aspiration every 20 days was used as the main parameter, comparing it with previous studies that suggested shorter intervals. Results and Discussion: The data indicate that the frequency of follicular aspiration every 20 days may be more beneficial for the recovery of high-quality oocytes. Although some studies suggest shorter intervals, this study highlights the importance of individually considering each group of females, taking into account reproductive phase, age, and genetic lineage. The high productivity and quality of oocytes in cyclic cows of good genetic lineage corroborate previous findings, emphasizing the relevance of these factors for the success of the technique. Conclusion: This study contributes not only to the technical advancement in assisted reproduction but also to a deeper understanding of the influence of different variables in the follicular aspiration process. To enhance reproductive efficiency and profitability of cattle properties, it is essential to individually consider each group of females and the ideal frequency of follicular aspiration, especially in cyclic cows of good genetic lineage.