Variation of milk urea nitrogen according to milk yield and milk protein in Holstein cows in Boyacá, Colombia

Authors

  • Luis Edgar Tarazona-Manrique Universidad Pedagógica y Tecnológica de Colombia, Escuela de Medicina Veterinaria y Zootecnia, Laboratorio de Análisis de la Calidad de Leche y Control de Mastitis, Tunja, Boyacá, Colombia https://orcid.org/0000-0003-2819-0582
  • Roy José Andrade-Becerra Universidad Pedagógica y Tecnológica de Colombia, Escuela de Medicina Veterinaria y Zootecnia, Laboratorio de Análisis de la Calidad de Leche y Control de Mastitis, Tunja, Boyacá, Colombia
  • Julio César Vargas-Abella Universidad Pedagógica y Tecnológica de Colombia, Escuela de Medicina Veterinaria y Zootecnia, Laboratorio de Análisis de la Calidad de Leche y Control de Mastitis, Tunja, Boyacá, Colombia

DOI:

https://doi.org/10.15381/rivep.v34i2.23668

Keywords:

urea, milk yield, dairy cows, milk traits

Abstract

The aim of this study was to determine the variation of milk urea nitrogen (MUN) concentration according to milk yield and milk protein in Holstein cows in Boyacá, Colombia. Data previously collected (n=4901) over two years were used. Univariate analysis of variance was performed with the variables milk yield (l/day) and milk protein (%) as independent variables and the concentration of MUN as the dependent variable. In addition, a simple linear correlation analysis was performed between each variable. The results showed that MUN values are higher when milk yield is lower, but no statistical differences were found for MUN concentration according to milk protein content. Weak and negative correlation was found between milk yield and MUN concentration, but no significant correlation was found between milk protein and MUN concentration.

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Published

2023-04-28

Issue

Vol. 34 No. 2 (2023)

Section

Artículos Primarios

License

Copyright (c) 2023 Luis Edgar Tarazona-Manrique, Roy José Andrade-Becerra, Julio César Vargas-Abella

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

Tarazona-Manrique, L. E., Andrade-Becerra, R. J., & Vargas-Abella, J. C. (2023). Variation of milk urea nitrogen according to milk yield and milk protein in Holstein cows in Boyacá, Colombia. Revista De Investigaciones Veterinarias Del Perú, 34(2), e23668. https://doi.org/10.15381/rivep.v34i2.23668