Efect of urea levels on the nutritional value of Tanzania-grass hay

Authors

  • Anderson de Moura Zanine Universidade Federal de Viçosa
  • Edson Mauro Santos Universidade Federal de Viçosa
  • Daniele de Jesus Ferreira Universidade Federal Rural do Rio de Janeiro
  • Odilon Gomes Pereira Universidade Federal de Viçosa

DOI:

https://doi.org/10.5433/1679-0359.2007v28n2p333

Keywords:

Conservation, cell wall, degradable protein, fiber, quality

Abstract

This experiment was developed to evaluate the effect of the urea addition on the nutritional value of the Tanzânia-grass hay (Panicum maximum, Jacq cv. Tanzânia). The experimental design was entirely randomized, with four treatments: T1 – only hay, T2 – hay with 1.0% of urea, T3 – hay with 2.0% of urea and T4 – hay with 3.0% of urea, with base in the dry matter, and ten replicates per treatment. There was positive linear effect of the urea levels on the crude protein (CP), being the largest level providing increases of four percentile points in relation to the control treatment. This treatment provided, also, reduction in neutral detergent fiber (NDF), acid detergent fiber (ADF) and hemicelulose (HEM), through a negative lineal effect. The values obtained by the regression equation in the highest dose were 62.37, 38.74 and 23.66%, to NDF, ADF and HEM values, respectively. There was positive linear effect for the digestibility with the addition of the urea levels providing medium increases of 53.93% in the control to 63.96% in the dose of 3.0%. The urea use is efficient in promoting increment in the quality of the Tanzânia-grass hay.

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Author Biographies

Anderson de Moura Zanine, Universidade Federal de Viçosa

Doutorando em Zootecnia, Universidade Federal de Viçosa- UFV, Viçosa, MG, Bolsista do CNPq.

Edson Mauro Santos, Universidade Federal de Viçosa

Doutorando em Zootecnia, Universidade Federal de Viçosa- UFV, Viçosa, MG, Bolsista do CNPq

Daniele de Jesus Ferreira, Universidade Federal Rural do Rio de Janeiro

Graduanda em Zootecnia, Universidade Federal Rural do Rio de Janeiro- UFRRJ.

Odilon Gomes Pereira, Universidade Federal de Viçosa

Professor Adjunto do Departamento de Zootecnia, Universidade Federal de Viçosa- UFV.

Published

2007-10-30

How to Cite

Zanine, A. de M., Santos, E. M., Ferreira, D. de J., & Pereira, O. G. (2007). Efect of urea levels on the nutritional value of Tanzania-grass hay. Semina: Ciências Agrárias, 28(2), 333–340. https://doi.org/10.5433/1679-0359.2007v28n2p333

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