Evaluation of a simplified protocol of superovulation in Holstein cows in production with sexed and conventional semen

  • Daniel Ernesto Argudo Garzon Universidad Católica de Cuenca http://orcid.org/0000-0001-6430-7413
  • Luis M. Sánchez Unidad Académica de Ciencias Agropecuarias, Universidad Católica de Cuenca
  • Joselyn E. Chauca Unidad Académica de Ciencias Agropecuarias, Universidad Católica de Cuenca
  • Juan C. Alvarado Unidad Académica de Ciencias Agropecuarias, Universidad Católica de Cuenca
  • Andrés L. Moscoso Unidad Académica de Ciencias Agropecuarias, Universidad Católica de Cuenca https://orcid.org/0000-0002-4017-0165
  • Carlos A. Soria Singamia Cia. Ltda.
Keywords: superovulation, FSHp, eCG, sexed semen

Abstract

The application of superovulatory treatments in cows is difficult since the donors must be injected twice a day for four days, which causes stress in the animal and increases the cost due to labor and mobilization of the animals. Recently, it was shown that replacing the last four doses of FSHp with a dose of eCG produces a superovulatory response and number of embryos similar to the conventional protocol, thus simplifying treatment (Barajas et al., 2019). The objective of this work was to evaluate the application of a simplified superovulatory treatment in Holstein cows in production, replacing the last 4 doses of FSHp with a dose of eCG with the use of sexed and conventional semen on the superovulatory response and recovered structures.

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References

Barajas, J. L., Cedeño, A., Andrada, S., Ortega, J. A., Oviedo, J. M., Tribulo, A., Tribulo, R., Tribulo, H., & Bó, G. A. (2019). 196 Embryo production using follicle-stimulating hormone (FSH) or FSH+equine chorionic gonadotropin in beef donors. Reproduction, Fertility, and Development, 31(1), 223. https://doi.org/10.1071/rdv31n1ab196
Barros, C. M., Barcelos, A. C. Z., Gouvêa, L. M., Meneghel, M., Barcelos, D. S., Barcelos, L. N., & Trinca, L. A. (2008). 143 Improvement of a superstimulatory protocol in nelore cows: replacing the last two doses of pFSH by eCG. Reproduction, Fertility, and Development, 20(1), 152. https://doi.org/10.1071/rdv20n1ab143
Macedo, G. G., Zúccari, C. E. S. N., de Abreu, U. G. P., Negrão, J. A., & da Costa e Silva, E. V. (2011). Human-animal interaction, stress, and embryo production in Bos indicus embryo donors under tropical conditions. Tropical Animal Health and Production, 43(6), 1175–1182. https://doi.org/10.1007/s11250-011-9820-6
Naranjo Chacón, F., Montiel Palacios, F., Canseco Sedano, R., & Ahuja-Aguirre, C. (2020). Embryo production after superovulation of bovine donors with a reduced number of FSH applications and an increased eCG dose. Theriogenology, 141, 168–172. https://doi.org/10.1016/j.theriogenology.2019.09.018
Monteiro, P. L. J., Batista, A. M., Almeida, F. C., Figueirêdo, A. E. S., Soares, P. C., Carneiro, G. F., & Guerra, M. M. P. (2016). Fertilization rate and embryo production of superovulated dairy cows after insemination with non-sorted and sex-sorted semen. Animal Reproduction, 13(2), 112–115. https://doi.org/10.21451/1984-3143-AR730
Published
2022-10-19
How to Cite
Argudo Garzon, Daniel Ernesto, Luis M. Sánchez, Joselyn E. Chauca, Juan C. Alvarado, Andrés L. Moscoso, and Carlos A. Soria. 2022. “Evaluation of a Simplified Protocol of Superovulation in Holstein Cows in Production With Sexed and Conventional Semen”. Archivos Latinoamericanos De Producción Animal 30 (Supl. 2), 75-77. https://doi.org/10.53588/alpa.300612.