PHYSICAL-CHEMICAL QUALITY OF Urochloa GRASSES IN DIFFERENT PHENOLOGICAL STAGES

Peralta, María De Los Ángeles Maldonado; García, Adelaido Rafael Rojas; Olmedo, Filiberto Magadan; Mariela, Pinacho Martinez; Aguirre, Herminio Aniano; Perez, Lauro Gasga

doi:10.35410/ijaeb.2020.5536

Cited by 2 publications

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“…With the advance of the SD of Guinea Massai grass, there was a decrease in the percentage of leaves and, conversely, growth in the percentage of stem and dead material (Table 2). These results are in line with those observed by Caldeira [27] in Guinea Massai grass, Khral et al [28] in different cultivars of giant missionary grass, and Peralta et al [29] for cultivars of Urochloa. As the forage develops physiologically, moving from the vegetative to the reproductive stage, the stem elongates and prevents the generation of new leaves [30].…”

Section: Discussionsupporting

confidence: 91%

How Are Warm-Season Pastures’ Nutritive Value and Fermentation Characteristics Affected by Open Pasture, Silvopasture, and Sward Herbage Maturity?

et al. 2023

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This study aimed to evaluate the forage mass and nutritional value (NV) of Guinea Massai grass (Megathyrsus maximus × Megathyrsus infestum) in an open pasture (OP) or the silvopastoral system (SPS) at different stages of development (SDs). The experimental design was completely randomized, with five replications. The treatments were distributed in a factorial scheme 2 × 4, corresponding to types of systems (OP and SPS) and four SD (vegetative stage—S1, pre-flowering—S2, full flowering—S3 and maturity after flowering—S4). There was no interaction of the system × stage of plant development in any of the variables evaluated. The production of forage mass and Guinea Massai grass morphological components did not differ (p > 0.05) between SPS and OP. However, they differed between the SDs (p ≤ 0.05), with an increasing linear effect for forage mass, percentage of the stem, and dead material, and decreasing for leaf percentage and leaf: stem ratio. Only protein content differed (p < 0.05) among the chemical composition variables between culture systems. The shading caused by the SPS did not decrease the forage mass, NV, and in vitro dry matter digestibility of Guinea Massai grass compared to the system in OP. The advance of the SD of Guinea Massai grass increases the forage mass, with higher proportions of morphological components of low NV, such as stem and dead material. Silvopastoral system of Guinea Massai grass and eucalyptus is effective to prolongate the grazing season, with a greater amount of green leaves in the sward and better NV, without compromising herbage mass production in the forage growing season.

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Section: Discussionsupporting

confidence: 91%

How Are Warm-Season Pastures’ Nutritive Value and Fermentation Characteristics Affected by Open Pasture, Silvopasture, and Sward Herbage Maturity?

et al. 2023

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Características estructurales de pastos: Mulato II, Convert 330 y Convert 431 (Urochloa híbrido)

Aniano-Aguirre

Maldonado-Peralta

Gasga-Pérez

et al. 2022

Remexca

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El objetivo fue evaluar los pastos del género Urochloa: Mulato II, Convert 330 y Convert 431 al variar las edades de corte en los atributos: dinámica de población de tallos, recambio de tejido, relación hoja:tallo, peso por tallo y rendimiento de materia seca. La investigación se realizó en las praderas del Instituto Tecnológico de Pinotepa, en la localidad de San José Estancia Grande, Oaxaca. Los tratamientos fueron los genotipos: Mulato II, Convert 330 y Convert 431. Los datos se analizaron mediante un diseño de bloques completamente al azar con arreglo en parcelas divididas y cuatro repeticiones, el procedimiento utilizado fue PROC GLM de SAS. El pasto Mulato II presentó mayor densidad de tallos con un promedio de 540 tallos m-2, mientras que el pasto Convert 330 registró la menor densidad de tallos a lo largo de la investigación, con un promedio de 220 tallos m-2, tendiendo a aumentar más lento en el tiempo (p< 0.05). El pasto que obtuvo el mayor crecimiento neto fue Convert 330 seguido por Mulato II y al final Convert 431 con un promedio de 169, 133 y 104 cm tallo-1, respectivamente ((p< 0.05). El pasto Convert 330 en el día 49 después del corte obtuvo el mayor rendimiento con 4 091 kg MS ha-1 (p< 0.05). Como conclusión el genotipo Convert 330 presento mejores características estructurales en la pradera lo que refleja mayor rendimiento de materia seca.

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PHYSICAL-CHEMICAL QUALITY OF Urochloa GRASSES IN DIFFERENT PHENOLOGICAL STAGES

Cited by 2 publications

References 0 publications

How Are Warm-Season Pastures’ Nutritive Value and Fermentation Characteristics Affected by Open Pasture, Silvopasture, and Sward Herbage Maturity?

How Are Warm-Season Pastures’ Nutritive Value and Fermentation Characteristics Affected by Open Pasture, Silvopasture, and Sward Herbage Maturity?

Características estructurales de pastos: Mulato II, Convert 330 y Convert 431 (Urochloa híbrido)

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