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Agronomía Costarricense
Article . 2009
Data sources: DOAJ
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VALOR NUTRICIONAL DEL ENSILAJE DE MAÍZ CULTIVADO EN ASOCIO CON VIGNA (Vigna radiata)

Authors: Castillo Jiménez, Marianela; Rojas Bourrillón, Augusto; WingChing Jones, Rodolfo;

VALOR NUTRICIONAL DEL ENSILAJE DE MAÍZ CULTIVADO EN ASOCIO CON VIGNA (Vigna radiata)

Abstract

Se cuantificó la fermentabilidad y valor nutricional del ensilaje de maíz cultivado en asocio con vigna (Vigna radiata) mediante la técnica de microsilos. Se trabajó con 2 densidades de siembra de maíz y vigna (70:30 y 60:40), 3 niveles de melaza (0, 2 y 4% p/p) e inóculo bacterial (con o sin). El material se cosechó a 85 días de sembrado. Al material antes de ensilar y ensilado se le determinó materia seca (MS), proteína cruda (PC), extracto etéreo (EE), digestibilidad in vitro de la materia seca (DIVMS), cenizas (Ce), fibra detergente neutro (FDN), fibra detergente ácido (FDA), capacidad buffer (CB), pH, nitrógeno amoniacal (N-NH3.N-total-1) y lignina. Al mejor tratamiento, se le fraccionó la PC y se estimó el contenido energético. La asociación maíz-vigna presentó un contenido de humedad, digestibilidad y Ce alto; PC y EE aceptables y contenidos de FDN y FDA bajos. En el material ensilado, la densidad de siembra fectó la MS, Ce, PC, EE, FDN, FDA, lignina, N-NH3.N-total-1, CB y pH. La melaza modificó la composición nutricional y las características fermentativas de los tratamientos, excepto el pH. El inóculo bacterial afectó la PC, CB y pH del material. La densidad de siembra 70:30, con adición de 2% de melaza y sin inóculo bacterial presentó valores de DIVMS y PC altos, porcentajes de FDN y FDA bajos, N-NH3 bajo y un pH inferior a 4,2. En este ensilaje se estimó un valor de NDT (1X) de 63,9% y de ED, EM, ENm, ENg y ENl de 2,8, 2,3, 1,4, 0,8 y 1,4 Mcal.kg-1 MS, respectivamente. La fracción proteica se separó en A, B1, B2, B3 y C con valores de 2,3, 0,2, 2,6,2,4 y 1,9% PC, respectivamente, donde el 24,4% de la PC es degradable en el rumen, lo cual podría limitar la síntesis de proteína microbial.

Country
Costa Rica
Related Organizations
Keywords

fibra detergente neutro, neutral detergent fiber, S, Agriculture (General), fríjol mungo, rabiza beans, Agriculture, S1-972, fraccionamiento de proteína, total digestible nutrient, Crude protein, crude protein fraction, mung beans, Proteína cruda, nutrimentos digestibles totales, proteína cruda, fríjol rabiza

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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