Bromatological and structural changes in Megathyrsus maximus in four silvopastoral arrangement systems

The aim of this study was to compare the bromatological and structural behavior of Megathyrsus maximus (Poaceae) in four silvopastoral arrangement systems and a treeless prairie. Exclusion cages were used to evaluate four regrowth ages: 7, 14, 21 and 28 days. In each stage, the following were assess...

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Autores Principales: Barragán-Hernández, Wilson Andrés, Cajas-Girón, Yasmín Socorro
Formato: Artículo (Article)
Lenguaje:Español (Spanish)
Inglés (English)
Publicado: ‎‎Corporación colombiana de investigación agropecuaria - AGROSAVIA 2019
Acceso en línea:http://hdl.handle.net/20.500.12324/35288
id ir-20.500.12324-35288
recordtype dspace
institution Agrosavia
collection DSpace
language Español (Spanish)
Inglés (English)
description The aim of this study was to compare the bromatological and structural behavior of Megathyrsus maximus (Poaceae) in four silvopastoral arrangement systems and a treeless prairie. Exclusion cages were used to evaluate four regrowth ages: 7, 14, 21 and 28 days. In each stage, the following were assessed: crude protein, neutral detergent fiber, acid detergent fiber and in situ degradability of dry matter (bromatological) and plant height, stem-leaf ratio and leaf width (structural). Crude protein in M. maximus was affected by silvopastoral arrangement (p < 0.05). The crude protein in Pasto and p-Arbust treatments were 2,42 % less than the mean of p-Arbor, p-Arbust-Arbor and p-Arbust-Arbor-M treatments. The neutral (65,16 %) and acid (37,30 %) detergent fibers were higher in the dry season (p < 0.05). The treatment affected (p < 0.05) plant height, stem-leaf ratio and leaf width, with highest value in p-Arbor (80,26 cm), Pasto (51,75:1 g) and p-Arbust-Arbor (2,73 cm), respectively. The interaction treatment, season and regrowth age affected plant height and leaf width. In the silvopastoral arrangement system with tree cover, plant height and leaf width were higher at 28 regrowth days in the dry season, compared with the Pasto and the p-Arbust treatments. In conclusion, the silvopastoral arrangement system influence the adaptative response of M. maximus, with an increase in crude protein and better response of the plant height and leaf width.
format Artículo (Article)
author Barragán-Hernández, Wilson Andrés
Cajas-Girón, Yasmín Socorro
spellingShingle Barragán-Hernández, Wilson Andrés
Cajas-Girón, Yasmín Socorro
Bromatological and structural changes in Megathyrsus maximus in four silvopastoral arrangement systems
author_facet Barragán-Hernández, Wilson Andrés
Cajas-Girón, Yasmín Socorro
author_sort Barragán-Hernández, Wilson Andrés
title Bromatological and structural changes in Megathyrsus maximus in four silvopastoral arrangement systems
title_short Bromatological and structural changes in Megathyrsus maximus in four silvopastoral arrangement systems
title_full Bromatological and structural changes in Megathyrsus maximus in four silvopastoral arrangement systems
title_fullStr Bromatological and structural changes in Megathyrsus maximus in four silvopastoral arrangement systems
title_full_unstemmed Bromatological and structural changes in Megathyrsus maximus in four silvopastoral arrangement systems
title_sort bromatological and structural changes in megathyrsus maximus in four silvopastoral arrangement systems
publisher ‎‎Corporación colombiana de investigación agropecuaria - AGROSAVIA
publishDate 2019
url http://hdl.handle.net/20.500.12324/35288
_version_ 1740166115424731136
spelling ir-20.500.12324-352882022-04-08T17:34:44Z Bromatological and structural changes in Megathyrsus maximus in four silvopastoral arrangement systems Cambios bromatológicos y estructurales en Megathyrsus maximum bajo cuatro arreglos silvopastoriles Barragán-Hernández, Wilson Andrés Cajas-Girón, Yasmín Socorro The aim of this study was to compare the bromatological and structural behavior of Megathyrsus maximus (Poaceae) in four silvopastoral arrangement systems and a treeless prairie. Exclusion cages were used to evaluate four regrowth ages: 7, 14, 21 and 28 days. In each stage, the following were assessed: crude protein, neutral detergent fiber, acid detergent fiber and in situ degradability of dry matter (bromatological) and plant height, stem-leaf ratio and leaf width (structural). Crude protein in M. maximus was affected by silvopastoral arrangement (p < 0.05). The crude protein in Pasto and p-Arbust treatments were 2,42 % less than the mean of p-Arbor, p-Arbust-Arbor and p-Arbust-Arbor-M treatments. The neutral (65,16 %) and acid (37,30 %) detergent fibers were higher in the dry season (p < 0.05). The treatment affected (p < 0.05) plant height, stem-leaf ratio and leaf width, with highest value in p-Arbor (80,26 cm), Pasto (51,75:1 g) and p-Arbust-Arbor (2,73 cm), respectively. The interaction treatment, season and regrowth age affected plant height and leaf width. In the silvopastoral arrangement system with tree cover, plant height and leaf width were higher at 28 regrowth days in the dry season, compared with the Pasto and the p-Arbust treatments. In conclusion, the silvopastoral arrangement system influence the adaptative response of M. maximus, with an increase in crude protein and better response of the plant height and leaf width. El objetivo del estudio fue comparar el comportamiento bromatológico y estructural de Megathyrsus maximus (Poaceae) bajo cuatro arreglos silvopastoriles y una pradera sin árboles. Se utilizaron jaulas de exclusión para evaluar cuatro edades de rebrote: 7, 14, 21 y 28 días. En cada edad, se registró la proteína cruda, fibra en detergente neutro, fibra en detergente ácido y digestibilidad in situ de la materia seca (bromatológico) y altura de planta, relación hoja: tallo y ancho de la hoja (estructural). El arreglo silvopastoril afectó (p < 0,05) el contenido de proteína en M. maximum. El promedio de la proteína en los tratamientos Pasto y p-Arbust, fue 2,42 % menos que el promedio de los tratamientos p-Arbor, p-Arbust-Arbor y p-Arbust-Arbor-M. Los contenidos de fibra en detergente neutro (65,16 %) y ácido (37,30 %) fueron mayores en época seca (p < 0,05). En la respuesta estructural, el tratamiento afectó (p < 0,05) la altura, la relación hoja:tallo y ancho de la hoja, con los mayores registros en p-Arbor (80,26 cm), Pasto (51,75:1 g) y p-Arbust-Arbor (2,73 cm), respectivamente. Se registró interacción de la edad, la época y el arreglo (p < 0,05) en la altura y ancho de la hoja. En estas características, los arreglos silvopastoriles con cobertura arbórea evidenciaron una mejor respuesta en época seca a 28 días, comparado con los sistemas sin árboles. Se concluye que el arreglo silvopastoril influyó en la respuesta adaptativa de M. maximum, con incremento de proteína y mejor respuesta en alto y ancho de hoja. 2019 article Artículo científico http://purl.org/coar/resource_type/c_2df8fbb1 info:eu-repo/semantics/article https://purl.org/redcol/resource_type/ART http://purl.org/coar/version/c_970fb48d4fbd8a85 http://revistacta.agrosavia.co/index.php/revista/article/view/1458 10.21930/rcta.vol20_num2_art:1458 http://hdl.handle.net/20.500.12324/35288 reponame:Biblioteca Digital Agropecuaria de Colombia repourl:https://repository.agrosavia.co instname:Corporación colombiana de investigación agropecuaria AGROSAVIA spa eng http://revistacta.agrosavia.co/index.php/revista/article/view/1458/575 http://revistacta.agrosavia.co/index.php/revista/article/view/1458/576 Attribution-NonCommercial-ShareAlike 4.0 International http://creativecommons.org/licenses/by-nc-sa/4.0/ info:eu-repo/semantics/openAccess application/pdf ‎‎Corporación colombiana de investigación agropecuaria - AGROSAVIA Revista Ciencia y Tecnología Agropecuaria; Vol 20 No 2 (2019): Revista Ciencia y Tecnología Agropecuaria, Mayo-Agosto
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