Oestrous and conception rate in Saanen goats synchronized with medroxyprogesterone acetate (MAP) at two times of the year

Authors

  • Kenyi Garcia A. Clínica de Animales Mayores, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima, Perú
  • Edgar Villanueva R. Centro de Mejoramiento Caprino, Aldea Ecológica, Huaura, Lima, Perú
  • Cristina García B. Clínica de Animales Mayores, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima, Perú
  • Miguel Ara G. Laboratorio de Bioquímica, Nutrición y Alimentación Animal, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima, Perú
  • Alfredo Delgado C. Clínica de Animales Mayores, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Lima, Perú

DOI:

https://doi.org/10.15381/rivep.v31i2.17839

Keywords:

goats, oestrous synchronization, MAP, eCG

Abstract

The study aimed to evaluate the rates of visual oestrous and conception in Saanen goats subjected to oestrus synchronization at two seasons of the year. Hormonal synchronization was done using an intravaginal sponge impregnated with medroxyprogesterone acetate (MAP), for 11 days. In addition, 48 hours before sponge removal, 300 IU equine chorionic gonadotropin (eCG) and 125 µg cloprostenol were administered. The goats that showed heat were mounted by fertile males. The pregnancy diagnosis was done 60 days after the service by transrectal ultrasound. The rate of presentation of heat was 86.7 and 96.7% for the anoestrous season (January-February) and the cyclicity season (March-April), respectively, without significant difference between periods. The conception rate was 88.5 and 62.1% for the periods January-February and March-April, respectively (p<0.05). It is concluded that the use of MAP impregnated intravaginal sponges for the synchronization of oestrus in Saanen goats is effective, regardless of the time of year.

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Published

2020-06-20

Issue

Vol. 31 No. 2 (2020)

Section

Artículos Primarios

License

Copyright (c) 2020 Kenyi Garcia A., Edgar Villanueva R., Cristina García B., Miguel Ara G., Alfredo Delgado C.

Creative Commons License

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

AUTHORS RETAIN THEIR RIGHTS:

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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

Garcia A., K., Villanueva R., E., García B., C., Ara G., M., & Delgado C., A. (2020). Oestrous and conception rate in Saanen goats synchronized with medroxyprogesterone acetate (MAP) at two times of the year. Revista De Investigaciones Veterinarias Del Perú, 31(2), e17839. https://doi.org/10.15381/rivep.v31i2.17839