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Abstract
This study determined the impact of a change in grazing system on beef production from lucerne pastures in Argentina. One system (T500) used the traditional recommendation to commence grazing in spring when lucerne was near to 10% flowering. The grazing interval was ~ 500 growing degree‐days (GDD; above a base temperature for growth of 5°C) from mid‐spring to mid‐autumn. In contrast, the T350 system commenced grazing 11–15 days earlier at ~ 1,000 kg DM/ha [ver mas...]
dc.contributor.authorBerone, German Dario
dc.contributor.authorSardiña, María Cecilia
dc.contributor.authorMoot, Derrick
dc.date.accessioned2020-06-09T19:18:39Z
dc.date.available2020-06-09T19:18:39Z
dc.date.issued2020-06
dc.identifier.issn1365-2494
dc.identifier.otherhttps://doi.org/10.1111/gfs.12479
dc.identifier.urihttp://hdl.handle.net/20.500.12123/7387
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12479
dc.description.abstractThis study determined the impact of a change in grazing system on beef production from lucerne pastures in Argentina. One system (T500) used the traditional recommendation to commence grazing in spring when lucerne was near to 10% flowering. The grazing interval was ~ 500 growing degree‐days (GDD; above a base temperature for growth of 5°C) from mid‐spring to mid‐autumn. In contrast, the T350 system commenced grazing 11–15 days earlier at ~ 1,000 kg DM/ha and the grazing interval was ~ 350 GDD from mid‐spring to mid‐summer, and from mid‐summer to mid‐autumn, it was ~ 500 GDD. Total live‐weight production was ~ 30% or 185 and 115 kg/ha higher in T350 than T500 in Years 1 and 2 respectively. This was due to a higher live‐weight production per head and a higher stocking rate, because T350 produced 1,600 kg DM ha−1 year−1 more forage. Plant population (~70 plants/m2) and perennial biomass (root plus crown) at the end of the second year did not differ between treatments. This suggests that lucerne persistence was not affected by the more intensive spring grazing of T350, because an adequate period of autumn recovery was allowed. This work quantified the live‐weight gain (+30%, +150 kg/ha) when the grazing management of lucerne during the spring–summer period was based on crop growth status (i.e. standing biomass, canopy height) rather than on crop phenology.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherWileyes_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceGrass and Forage Science 75 (2): 192-205 (2020)es_AR
dc.subjectMedicago Sativaes_AR
dc.subjectSistema de Pastoreoes_AR
dc.subjectGrazing Systemseng
dc.subjectProducción Animales_AR
dc.subjectAnimal Productioneng
dc.subjectAlometríaes_AR
dc.subjectAllometryeng
dc.subjectBiomasaes_AR
dc.subjectBiomasseng
dc.subjectFloraciónes_AR
dc.subjectFloweringeng
dc.subjectClima Templadoes_AR
dc.subjectTemperate Climateeng
dc.subject.otherAlfalfaes_AR
dc.titleAnimal and forage responses on lucerne (Medicago sativa L.) pastures under contrasting grazing managements in a temperate climatees_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Balcarcees_AR
dc.description.filFil: Berone, Germán Darío. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina.es_AR
dc.description.filFil: Sardiña, María Cecilia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria General Villegas; Argentina.es_AR
dc.description.filFil: Moot, Derrick. Lincoln University. Faculty of Agriculture an Life Science; Nueva Zelandaes_AR
dc.subtypecientifico


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