Levels of urea and water on the bromatological composition of oat (Avena sativa L) hay

Authors

  • Marcelino Mina E. Laboratorio de Nutrición Animal y Evaluación de Alimentos, Universidad Nacional de Huancavelica
  • Fredy Ramos P. Laboratorio de Nutrición Animal y Evaluación de Alimentos, Universidad Nacional de Huancavelica
  • Alfonso Cordero F. Laboratorio de Nutrición Animal y Evaluación de Alimentos, Universidad Nacional de Huancavelica
  • José Contreras P. Laboratorio de Nutrición Animal y Evaluación de Alimentos, Universidad Nacional de Huancavelica
  • James Curasma C. Laboratorio de Nutrición Animal y Evaluación de Alimentos, Universidad Nacional de Huancavelica
  • Miguel Tunque Q. Laboratorio de Nutrición Animal y Evaluación de Alimentos, Universidad Nacional de Huancavelica

DOI:

https://doi.org/10.15381/rivep.v29i3.14770

Keywords:

ammonification, hay, oats, urea

Abstract

The objective of the study was to determine the bromatological composition of the ammonification of oats hay subjected to four levels of urea and three of water. A completely randomized design was used with four repetitions in a 4x3 factorial scheme. The levels of urea (2, 4, 6%, based on dry matter) and water (20, 30, 40%) added were evaluated. The processed oats were stored in PVC microsilos of 10x60 cm for 60 days. At the opening of the silos, samples were collected to determine DM, CP, mineral matter (MM), NDF and ADF, plus hemicellulose by the difference between the latter components. The DM decreased linearly when using the water levels with 2, 4 and 6% urea. The average CP content increased cubically with the addition of urea (14.52%) in relation to urea-free silage (6.70%) and decreased with water levels (11.89 vs. 9.92%). There was no effect of the urea or water levels on the contents of NDF and ADF. The NDF of the ammonified oats with the levels of urea in combination with 20% of water showed a negative linear effect (58.01 to 47.86% of NDF). This same behavior was observed for hemicellulose (19.10 to 14.74%). The MM was quadratically influenced by the urea levels, estimating a maximum value of 8.13% for the 5.11% level of urea. The ammonification with urea altered the bromatological composition of the oats hay improving its nutritional value.

Downloads

Download data is not yet available.

Downloads

Published

2018-09-06

Issue

Vol. 29 No. 3 (2018)

Section

Artículos Primarios

License

Copyright (c) 2018 Marcelino Mina E., Fredy Ramos P., Alfonso Cordero F., José Contreras P., James Curasma C., Miguel Tunque Q.

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

Mina E., M., Ramos P., F., Cordero F., A., Contreras P., J., Curasma C., J., & Tunque Q., M. (2018). Levels of urea and water on the bromatological composition of oat (Avena sativa L) hay. Revista De Investigaciones Veterinarias Del Perú, 29(3), 743-755. https://doi.org/10.15381/rivep.v29i3.14770