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CONICET Digital
Article . 2016
License: CC BY NC SA
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Comparación entre pastoreo continuo y pastoreo rotativo de un pastizal rolado en el centro-oeste de la Provincia de La Pampa

Authors: Adema, E. O.; Butti, L. R.; Babinec, Francisco José; Distel, Roberto Alejandro;

Comparación entre pastoreo continuo y pastoreo rotativo de un pastizal rolado en el centro-oeste de la Provincia de La Pampa

Abstract

El control de la vegetación leñosa y la planificación posterior del pastoreo contribuirían a aumentar la oferta forrajera y la producción ganadera en pastizales del centro-oeste de la Provincia de La Pampa. El objetivo del presente trabajo fue comparar la dinámica de la vegetación y la respuesta animal en un pastizal rolado sometido a pastoreo continuo o pastoreo rotativo. La mitad de un área rolada de 200 ha se pastoreo en forma continua con terneros de recría, mientras que la restante mitad se pastoreo en forma rotativa mediante la subdivisión en cuatro parcelas de igual tamaño. Durante cuatro años consecutivos se realizaron mediciones sobre la vegetación (herbácea y leñosa) y sobre los animales. En el periodo de mediciones las lluvias fueron similares o superaron (hasta en un 33%) el promedio anual histórico. Los tratamientos de pastoreo (continuo y rotativo) no afectaron en forma diferencial la densidad de las gramíneas perennes palatables ni la cobertura de la vegetación leñosa, mientras que la disponibilidad de MS total promedio de las gramíneas perennes palatables fue mayor bajo pastoreo rotativo. La ganancia diaria de peso promedio de los animales en recría fue mayor bajo pastoreo continuo en tres de los cuatro años de medición. En el contexto del presente estudio no se expresó el potencial esperado del pastoreo rotativo, lo cual se interpreta en relación a las lluvias y a una potencial desmejora de la calidad del forraje consumido por los animales.

Woody vegetation control and further grazing planning would contribute to increase forage availability and livestock production in rangelands of central-west La Pampa Province. The objective of present study was to compare vegetation dynamics and animal response in a roller chopped rangeland under continuous or rotational grazing. Half of a roller chopped area of 200 ha was continuously grazed with stocker cattle, whereas the other half was rotationally grazed through its subdivision in four parcels of equal size. Vegetation (herbaceous, woody) and animal responses were measured along a period of four consecutive years. During the study period rainfall was similar or above (up to 33%) the long-term annual average. Grazing treatments (continuous, rotational) did not differentially affect either density of palatable perennial grasses or woody vegetation cover, whereas total average DM availability of palatable perennial grasses was higher under rotational grazing. Average daily gain of stockers was higher under continuous grazing on three out of the four years of measurements. The expected potential of rotation grazing was not expressed under the context of present study, which is interpreted in relation to rainfall conditions and a potential deterioration in forage quality ingested by animals.

Fil: Distel, Roberto Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiarida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiarida; Argentina

Fil: Babinec, Francisco José. Instituto Nacional de Tecnología Agropecuaria. Centro Regional La Pampa-San Luis. Estación Experimental Agropecuaria Anguil; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina

Fil: Adema, E. O.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional La Pampa-San Luis. Estación Experimental Agropecuaria Anguil; Argentina

Fil: Butti, L. R.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional La Pampa-San Luis. Estación Experimental Agropecuaria Anguil; Argentina

Country
Argentina
Keywords

https://purl.org/becyt/ford/4.2, https://purl.org/becyt/ford/4, PASTIZALES NATURALES, ECOTONO CALDENAL-MONTE OCCIDENTAL, CONTROL DE ESPECIES LEÑOSAS, MANEJO DEL PASTOREO, RECRÍA VACUNA

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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
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