Open AccessChemical composition and digestibility of hays of three grasses ammonized with urea
Author(s) -
Rayanna Campos Ferreira,
Francisco das Chagas Bezerra Neto,
F. C. de Almeida,
Aderbal Marcos de Azevêdo Silva,
Maíza Araújo Cordão,
José Morais Pereira Filho
Publication year - 2022
Publication title -
principia/revista principia
Language(s) - English
Resource type - Journals
eISSN - 2447-9187
pISSN - 1517-0306
DOI - 10.18265/1517-0306a2021id5077
Subject(s) - urea , dry matter , hay , neutral detergent fiber , eleusine , chemistry , agronomy , zoology , repens , biology , biochemistry , finger millet
The objective of this study was to evaluate the effect of ammonization with urea on the chemical composition and in vitro digestibility of Rhynchelytrum repens, Aristida setifolia and Eleusine indica grasses. The experimental design was completely randomized, with a 3x2 factorial treatment (hay of three species, treated with or without urea) and five replications. The contents of dry matter, crude protein, neutral detergent fiber, acid detergent fiber, mineral matter, lignin, total carbohydrates and digestibility were evaluated in the grass (R. repens, A. setifolia e E. indica). The treatment with urea affected (p < 0.05) most of the variables analyzed in grass hays. Hay treated with urea showed an increase in crude protein levels and the highest value was observed for the hay of Eleusine indica grass. Rhynchelytrum repens grass hay presented the highest fiber value in acid detergent, with and without urea. An increase in in vitro dry matter digestibility was observed after the use of urea. Ammonization with 5% urea improves the nutritional values of hay in Rhynchelytrum repens, Aristida setifolia and Eleusine indica grasses, increasing the levels of protein, minerals and digestibility.