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Valor alimenticio de especies productivas en prados de montaña

Authors: Peláez, Rodrigo; Andrés, Sonia; Valdés, Carmen; García, R.; Calleja, Alfredo;

Valor alimenticio de especies productivas en prados de montaña

Abstract

[ES] Con el fin de comprobar la vigencia de los métodos clásicos para evaluar la calidad de los forrajes, se compararon los índices establecidos por Daget y Poissenet (1971) para calcular el valor pastoral, con la cuantificación del valor alimenticio, desde el punto de vista energético, siguiendo el esquema de valoración de los forrajes propuesto por Andrieu et al. (1981), en una serie de forrajes obtenidos de prados de montaña en cuatro momentos de siega sucesivos durante el primer ciclo de crecimiento y en tres rebrotes de los mismos. Los forrajes estudiados fueron: 10 gramíneas (Alopecurus pratensis, Anthoxanthum odoratum, Arrhenatherum elatius, Cynosurus cristatus, Dactylis glomerata, Festuca pratensis, Holcus lanatus, Lolium perenne, Poa trivialis y Trisetum flavescens), dos leguminosas (Trifolium pratense y Trifolium repens) y el prado en su conjunto. Se observa como, en determinados momentos de utilización de los forrajes, los valores conseguidos con los sistemas clásicos están sobrevalorados.

[EN] To study the validity of Daget and Poissenet (1971) classic method on forage quality evaluation, a comparison with the feeding value estimated using energy and voluntary intake parameters as described by Andrieu et al. (1981) was made using forage samples obtained from mountain meadows. Forage samples were harvested in four successive dates; three meadows regrowths were also cut. The forages used were: 10 grasses: Alopecurus pratensis, Anthoxanthum odoratum, Arrhenatherum elatius, Cynosurus cristatus, Dactylis glomerata, Festuca pratensis, Holcus lanatus, Lolium perenne, Poa trivialis y Trisetum flavescens, two legumes Trifolium pratense y Trifolium repens) and the whole meadows. The main conclusion was that Daget and Poissenet method overestimates forage quality at some harvesting dates.

6 páginas, 3 tablas.-- Trabajo presentado a la 50ª Reunión Científica de la Sociedad Española para el Estudio de los Pastos(Toledo, España, 9 al 12 de mayo de 2011).

A la Junta de Castilla y León por la financiación dentro del programa de ayudas a la actividad investigadora al grupo de excelencia GR158.

Peer reviewed

Country
Spain
Related Organizations
Keywords

UGM, INRA, Forrajes, Pastoral value, AUE, Valor pastoral

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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.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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