Biometric description of gestation in the alpaca (Vicugna pacos)

Authors

  • Joel Ivan Pacheco Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria, Estación Marangani del Instituto Veterinario de Investigaciones Tropicales y de Altura, Lima, Peru https://orcid.org/0000-0001-9978-6522
  • Víctor Manuel Vélez Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria, Estación Marangani del Instituto Veterinario de Investigaciones Tropicales y de Altura, Lima, Peru https://orcid.org/0000-0002-2224-2786
  • Wilber García Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria, Estación Marangani del Instituto Veterinario de Investigaciones Tropicales y de Altura, Lima, Peru https://orcid.org/0000-0002-3666-7267
  • Daniel Marcelo Lombardo Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal, Cátedra de Histología y Embriología, Buenos Aires, Argentina https://orcid.org/0000-0003-0677-7702

DOI:

https://doi.org/10.15381/rivep.v34i6.26962

Keywords:

gestation, biometry, volumetry, alpaca

Abstract

The gestation biometrics of the alpaca (Vicugna pacos) are described. The abdominal diameter was determined monthly from 10 pregnant alpacas. In addition, uterus of 49 pregnant alpacas were collected from the Maranganí herd (Cusco, Peru) and classified by gestational age known as mating date (every 30 days from day 30 to 330 [± 15 days]). Gravid uteri were weighed and measured, allantoic and amniotic fluid was removed and measured, and fetal weight and length were determined. The results indicate a slight increase in abdominal diameter until the end of gestation, the fetus gradually increases its weight as gestation progresses, being greater from the sixth month onwards. The total length of the fetus increases from month nine. The amniotic fluid represents less than 18% of the volume of the allantoic fluid, both fluids have low volumes. An increase in fluids could be observed towards month fivem a decrease until month nine, and a subsequent increase until the delivery date.

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Published

2023-12-18

Issue

Vol. 34 No. 6 (2023)

Section

Artículos Primarios

License

Copyright (c) 2023 Joel Ivan Pacheco, Víctor Manuel Vélez, Wilber García, Daniel Marcelo Lombardo

Creative Commons License

This work is licensed under a Creative Commons Attribution 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

Pacheco, J. I., Manuel Vélez, V., García, W., & Marcelo Lombardo, D. (2023). Biometric description of gestation in the alpaca (Vicugna pacos). Revista De Investigaciones Veterinarias Del Perú, 34(6), e26962. https://doi.org/10.15381/rivep.v34i6.26962