Chemical fractionation of carbohydrate and protein composition of corn silages fertilized with increasing doses of nitrogen

The use of nitrogen fertilizers in corn crops for silage can improve both production and, theoretically, nutritional quality, especially carbohydrate and protein fractions, thereby optimizing animal production. Thus, the aim of this study was to evaluate the effect of increasing levels of nitrogen f...

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Bibliographic Details
Published in:Ciência rural 2017, Vol.47 (5)
Main Authors: Neumann, Mikael, Nörnberg, José Laerte, Leão, Guilherme Fernando Mattos, Horst, Egon Henrique, Figueira, Danúbia Nogueira
Format: Article
Language:eng ; por
Subjects:
Agricultural production
AGRONOMY
Animal production
C fraction
Carbohydrates
Cereal crops
Chemical composition
Chemical fractionation
Corn
Corn silage
Crops
Dietary fiber
Fertilization
Fertilizers
Fractionation
Grain silos
Nitrogen
Nutrients
organic acids
pH effects
Protein composition
Proteins
Silage
solubility
starch
Urea
Vegetables
Zea mays
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Summary:The use of nitrogen fertilizers in corn crops for silage can improve both production and, theoretically, nutritional quality, especially carbohydrate and protein fractions, thereby optimizing animal production. Thus, the aim of this study was to evaluate the effect of increasing levels of nitrogen fertilization in carbohydrate and protein fractionation on the resulting corn silage (Zea mays L.). Nitrogen fertilization was carried out in the urea form (45-00-00) in V5 stage, at the following doses: T1: 0kg N ha-1; T2: 45kg N ha-1; T3: 90kg N ha-1; and T4: 135kg N ha-1. Crops were harvested at R4 stage and submitted to ensiling in experimental PVC silos. The chemical composition of the resulting silage was evaluated after silo opening. There was no statistical difference (P
ISSN:0103-8478
1678-4596
0103-8478
1678-4596
DOI:10.1590/0103-8478cr20160270