Animal and forage responses on lucerne (Medicago sativa L.) pastures under contrasting grazing managements in a temperate climate
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; a...
| Autores principales: | , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Wiley
2020
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/7387 https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12479 https://doi.org/10.1111/gfs.12479 |
| _version_ | 1855035848724054016 |
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| author | Berone, German Dario Sardiña, María Cecilia Moot, Derrick |
| author_browse | Berone, German Dario Moot, Derrick Sardiña, María Cecilia |
| author_facet | Berone, German Dario Sardiña, María Cecilia Moot, Derrick |
| author_sort | Berone, German Dario |
| collection | INTA Digital |
| description | 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 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. |
| format | info:ar-repo/semantics/artículo |
| id | INTA7387 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA73872020-06-09T19:40:08Z Animal and forage responses on lucerne (Medicago sativa L.) pastures under contrasting grazing managements in a temperate climate Berone, German Dario Sardiña, María Cecilia Moot, Derrick Medicago Sativa Sistema de Pastoreo Producción Animal Alometría Biomasa Floración Clima Templado Grazing Systems Animal Production Allometry Biomass Flowering Temperate Climate Alfalfa 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 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. EEA Balcarce Fil: Berone, Germán Darío. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: Sardiña, María Cecilia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria General Villegas; Argentina. Fil: Moot, Derrick. Lincoln University. Faculty of Agriculture an Life Science; Nueva Zelanda 2020-06-09T19:18:39Z 2020-06-09T19:18:39Z 2020-06 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/7387 https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12479 1365-2494 https://doi.org/10.1111/gfs.12479 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Grass and Forage Science 75 (2): 192-205 (2020) |
| spellingShingle | Medicago Sativa Sistema de Pastoreo Producción Animal Alometría Biomasa Floración Clima Templado Grazing Systems Animal Production Allometry Biomass Flowering Temperate Climate Alfalfa Berone, German Dario Sardiña, María Cecilia Moot, Derrick Animal and forage responses on lucerne (Medicago sativa L.) pastures under contrasting grazing managements in a temperate climate |
| title | Animal and forage responses on lucerne (Medicago sativa L.) pastures under contrasting grazing managements in a temperate climate |
| title_full | Animal and forage responses on lucerne (Medicago sativa L.) pastures under contrasting grazing managements in a temperate climate |
| title_fullStr | Animal and forage responses on lucerne (Medicago sativa L.) pastures under contrasting grazing managements in a temperate climate |
| title_full_unstemmed | Animal and forage responses on lucerne (Medicago sativa L.) pastures under contrasting grazing managements in a temperate climate |
| title_short | Animal and forage responses on lucerne (Medicago sativa L.) pastures under contrasting grazing managements in a temperate climate |
| title_sort | animal and forage responses on lucerne medicago sativa l pastures under contrasting grazing managements in a temperate climate |
| topic | Medicago Sativa Sistema de Pastoreo Producción Animal Alometría Biomasa Floración Clima Templado Grazing Systems Animal Production Allometry Biomass Flowering Temperate Climate Alfalfa |
| url | http://hdl.handle.net/20.500.12123/7387 https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12479 https://doi.org/10.1111/gfs.12479 |
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