Follicular dynamics of the natural estrous cycle in buffalo (Bubalus bubalis)

Authors

  • Jorge Alberto Sanchez valencia Laboratorio de Endocrinología y Reproducción Animal, Departamento de Salud Animal, Grupo CIENVET, Programa Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad de Caldas, Manizales
  • Marlyn o Hellen Romer Laboratorio de Endocrinología y Reproducción Animal, Departamento de Salud Animal, Grupo CIENVET, Programa Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad de Caldas, Manizales
  • Audelo Fernando Meneses Laboratorio de Endocrinología y Reproducción Animal, Departamento de Salud Animal, Grupo CIENVET, Programa Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad de Caldas, Manizales

DOI:

https://doi.org/10.15381/rivep.v30i1.14610

Keywords:

buffalo; estrous cycle; follicle; follicular wave; progesterone

Abstract

The aim of the study was to monitor the follicular dynamics of the natural estrous cycle in the domestic buffalo in Colombia. Patterns of growth and regression of ovarian follicles in two consecutive oestrus cycles in 11 buffalos were evaluated. Ultrasound examination of the ovaries were conducted every second day to establish patterns of follicular waves, number of waves, emergency day, number of follicles recruited, and characteristics of the dominant follicle (DF) and of the corpus luteum (CL). Progesterone (P4) concentration was determined by radioimmunoassay. Seventeen normal cycles (2, 11 and 4 estrous cycles with one, two and three follicular waves, respectively) were evaluated. The inter ovulatory interval was 12.5 ± 2.7, 20.5 ± 1.2 and 28.8 ± 1.9 days for cycles with 1, 2 and 3 follicular waves, respectively. Follicular waves emerged on days 0 ± 2.3 for cycles with 1 wave, on days 2.3 ± 1.0 and 10.5 ± 1.0 in cycles with two waves and on days 1.6 ± 1.25, 8.0 ± 1.9 and 20.8 ± 1.6 (mean ± e.e.) in cycles with the waves. The concentration of P4 on the day of maximum diameter of CL on average was 7.2 ± 6.6 ng/ml. In conclusion, follicular dynamics of the Colombian buffalo is characterized by patterns of one, two and three follicular waves, with predominance of two-wave cycles.

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Author Biography

  • Jorge Alberto Sanchez valencia, Laboratorio de Endocrinología y Reproducción Animal, Departamento de Salud Animal, Grupo CIENVET, Programa Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad de Caldas, Manizales

    Docente Salud Animal, Universidad de Caldas, Colombia

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Published

2019-03-04

Issue

Vol. 30 No. 1 (2019)

Section

Artículos Primarios

License

Copyright (c) 2019 Marlyn o Hellen Romer, Jorge Alberto Sanchez valencia, Audelo Fernando Meneses

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

AUTHORS RETAIN THEIR RIGHTS:

a. Authors retain their trade mark rights and patent, and also on any process or procedure described in the article.

b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Revista de Investigaciones Veterinarias del Perú (RIVEP).

c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating the source of publication (the originator of the work, journal, volume, number and date).

How to Cite

Sanchez valencia, J. A., Hellen Romer, M. o, & Fernando Meneses, A. (2019). Follicular dynamics of the natural estrous cycle in buffalo (Bubalus bubalis). Revista De Investigaciones Veterinarias Del Perú, 30(1), 299-308. https://doi.org/10.15381/rivep.v30i1.14610