Ovarian superstimulation with FSH in Wagyu breed bovine donors impacts folicular dynamics but does not improve the amount of embryos

Authors

DOI:

https://doi.org/10.33448/rsd-v10i10.18811

Keywords:

Follicular aspiration; Reproductive biotechnology; Blastocyst; Antral follicle.

Abstract

The increase of the world population generates the need to raise the production of food of vegetal and animal origin. In Brazil, livestock farming has evolved, demonstrating the important role of the country in the production of food. In this way, researchers of this productive chain have been looking for technologies related to production and reproduction, above all, to the use of reproduction biotechnologies, seeking to increase the production of different bovine breeds. Thus, the objective of this research was to investigate the efficacy of ovarian FSH super stimulation in bovine Wagyu oocyte donor females on follicular dynamics and in vitro embryo production. Twelve Wagyu animals, aged 12 to 24 months, randomly distributed in a crossover design were used in two groups: Group 1= animals not stimulated with FSH and Group 2= animals stimulated with FSH. The follicular, oocyte and embryonic variables were evaluated. It was observed that ovarian overstimulation in Wagyu oocyte donor cows with FSH improved the mean and large follicles but reduced the rate of oocyte recovery and, despite the best percentage of viable oocytes, there was no improvement in the amount of embryos produced in vitro.

Author Biographies

Fabio Marcelo de Queiróz, Universidade Cesumar

Médico Veterinário, Mestre em Tecnologias LImpas / Unicesumar

Márcia Aparecida Andreazzi, Universidade Cesumar

Zootecnista, coordenadora e professora do mestrado em Tecnologias Limpas/ Unicesumar; Pesquisadora ICETI/ UNICESUMAR.

Fábio Luiz Bim Cavalieri, Universidade Cesumar

Médico veterinário, docente do mestrado em Tecnologias Limpas/ Unicesumar; Pesquisador ICETI/ UNICESUMAR.

Isabele Picada Emanuelli, Universidade Cesumar

Professora do Programa de Pós-Graduação em Tecnologias LiImpas/ ICETI/ Unicesumar.

Marcelo Marcondes Seneda, Universidade Estadual de Londrina

Professor Doutor do Curso de Medicina Veterinária da Universidade Estadual de Londrina/ PR.

Fábio Morotti, Universidade Estadual de Londrina

Professor Doutor do Curso de Medicina Veterinária da Universidade Estadual de Londrina/ PR.

Vinicius Eduardo Gargaro Silva, Universidade Cesumar

Mestre em Tecnologias Limpas/ UNICESUMAR

Danieli Aparecida Bobbo Moreski, Universidade Cesumar

Mestre em Tecnologias Limpas/ UNICESUMAR

Antonio Hugo Bezerra Colombo, Universidade Cesumar

Mestre em Tecnologias Limpas/ UNICESUMAR

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Published

07/08/2021

How to Cite

QUEIRÓZ, F. M. de; ANDREAZZI, M. A. .; CAVALIERI, F. L. B. .; EMANUELLI, I. P. .; SENEDA, M. M. .; MOROTTI, F.; SILVA, V. E. G. .; MORESKI, D. A. B. .; COLOMBO, A. H. B. . Ovarian superstimulation with FSH in Wagyu breed bovine donors impacts folicular dynamics but does not improve the amount of embryos. Research, Society and Development, [S. l.], v. 10, n. 10, p. e165101018811, 2021. DOI: 10.33448/rsd-v10i10.18811. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/18811. Acesso em: 18 oct. 2021.

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Section

Agrarian and Biological Sciences