Effects of ammoniation on the quality of tropical grass hays

Authors

  • Ricardo Andrade Reis "Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal, Departamento de Zootecnia.
  • Rasmo Garcia "Universidade Federal de Viçosa, Centro de Ciências Agrárias, Departamento de Zootecnia.
  • Augusto César de Queiroz "Universidade Federal de Viçosa, Centro de Ciências Agrárias, Departamento de Zootecnia.
  • Dirceu Jorge da Silva
  • Joel Queiroga Ferreira

DOI:

https://doi.org/10.1590/S1678-3921.pab1991.v26.3455

Keywords:

ammonia levels, treatment periods, aeration periods

Abstract

Molassesgrass (Melinis minutiflora Beauv.) and Brachiaria decumbens Stapf (signalgrass) harvested in the post-flowering period were treated with 0, 2, 4 and 6% anhydrous ammonia for 30 or 45 days and thereafter subjected to aeration for 0, 15, 30, 45 and 60 days to study their quality. No effects (P > 0.05) of treatment periods on chemical composition and digestibility of the hays were observed. Ammoniation did not alter (P > 0.05) ADF, cellulose or lignin levels but caused a decrease (P < 0.05) in NDF and hemicellulose levels. Total nitrogen (TN), acid detergent insoluble nitrogen (ADIN) and in vitro dry matter digestibility (IVDMD) increased (P < 0.05) with ammoniation. Total nitrogen (TN) levels and digestibility diminished (P < 0.05) in response to aeration during storage from 0 to 60 days.

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Published

1991-08-01

How to Cite

Reis, R. A., Garcia, R., Queiroz, A. C. de, Silva, D. J. da, & Ferreira, J. Q. (1991). Effects of ammoniation on the quality of tropical grass hays. Pesquisa Agropecuaria Brasileira, 26(8), 1183–1191. https://doi.org/10.1590/S1678-3921.pab1991.v26.3455

Issue

v.26, n.8, ago. 1991

Section

ANIMAL SCIENCE