Dimorphism and allometric relationships in biometric measurements of vicuñas (Vicugna vicugna mensalis) in the Andes of Oruro (Bolivia)

Authors

  • Vladimiro Ibañez Universidad Nacional del Altiplano de Puno, Facultad de Ingeniería Estadística e Informática, Puno, Peru https://orcid.org/0000-0002-0277-4945
  • Severo Choque Universidad Técnica de Oruro, Facultad de Ciencias Agrarias y Naturales, Bolivia
  • Rutniss A. Vasquez Universidad Nacional Micaela Bastidas de Apurímac, Facultad de Medicina Veterinaria y Zootecnia, Peru https://orcid.org/0000-0001-9250-3614
  • Oscar Gomez-Quispe Universidad Nacional Micaela Bastidas de Apurímac, Facultad de Medicina Veterinaria y Zootecnia, Peru https://orcid.org/0000-0002-7517-772X

DOI:

https://doi.org/10.15381/rivep.v35i6.29600

Keywords:

morphometry, biometry, South American camelids, fiber, correlations

Abstract

The aim of this study was to characterize the vicuñas of the Poopó Lake Basin (Oruro, Bolivia) by analysing quantitative zoometric measurements related to fibre production. In total, 108 vicuñas from three communities (Yuruna, Pumasara and Wanapa) were selected at random. The variables were live weight, height at the withers, rump width, body length, thoracic perimeter, fleece weight, fibre diameter, fibre length, and wick length. The Student t test determined that the only sexual dimorphism was in rump width, being greater in females. Factor analysis identified two principal components explaining 72.4% of the variance. Factor 1 included body size/weight measurements with allometric correlations, reflecting differential growth of body regions. Factor 2 grouped fibre and wick length. Likewise, 69.4% of positive correlations were found, evidencing a high zoometric coherence. In conclusion, sexual dimorphism was manifested only in the width of the rump, while other measurements responded to allometric relationships by body size. Morphometric measurements were mostly positively correlated and presented highly harmonious morphostructural characteristics.

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Published

2024-12-20

Issue

Vol. 35 No. 6 (2024)

Section

Artículos Primarios

License

Copyright (c) 2024 Vladimiro Ibañez, Severo Choque, Rutniss A. Vasquez, Oscar Gomez-Quispe

Creative Commons License

This work is licensed under a Creative Commons Attribution 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

Ibañez, V., Choque, S., Vasquez, R. A., & Gomez-Quispe, O. (2024). Dimorphism and allometric relationships in biometric measurements of vicuñas (Vicugna vicugna mensalis) in the Andes of Oruro (Bolivia). Revista De Investigaciones Veterinarias Del Perú, 35(6), e29600. https://doi.org/10.15381/rivep.v35i6.29600