Defoliation patterns and their implications for the management of vegetative tropical pastures to control intake and diet quality by cattle
This study assessed the use of pasture attributes to control daily intake and diet quality during progressive defoliation on pastures of Axonopus catarinensis. Three consecutive 12‐day grazing treatments of progressive defoliation were conducted with Brahman cross‐steers. Daily forage intake and def...
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| Format: | Artículo |
| Language: | Inglés |
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Wiley
2018
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| Online Access: | http://hdl.handle.net/20.500.12123/2911 https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12186 https://doi.org/10.1111/gfs.12186 |
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| author | Benvenutti, Marcelo A. Pavetti, Daniel Rolando Poppi, Dennis P. Gordon, Iain J. Cangiano, Carlos Alberto |
| author_browse | Benvenutti, Marcelo A. Cangiano, Carlos Alberto Gordon, Iain J. Pavetti, Daniel Rolando Poppi, Dennis P. |
| author_facet | Benvenutti, Marcelo A. Pavetti, Daniel Rolando Poppi, Dennis P. Gordon, Iain J. Cangiano, Carlos Alberto |
| author_sort | Benvenutti, Marcelo A. |
| collection | INTA Digital |
| description | This study assessed the use of pasture attributes to control daily intake and diet quality during progressive defoliation on pastures of Axonopus catarinensis. Three consecutive 12‐day grazing treatments of progressive defoliation were conducted with Brahman cross‐steers. Daily forage intake and defoliation dynamics were assessed using a pasture‐based method. The treatments differed in initial sward height (33, 44 and 61 cm) and herbage mass (1030, 1740 and 2240 kg ha−1). The post‐grazing residual sward height, at which forage intake decreased, appeared to increase with the initial sward height (12·3, 14·6 and 15·5 cm). Steers grazed up to four distinctive grazing strata in all treatments. The depth and herbage mass content of the top grazing stratum were at least five times higher than the lower grazing strata in all treatments. This explains why forage intake decreased when the top grazing stratum was removed in approximately 93% of the pasture area in all treatments, equivalent to approximately 7% of the pasture area remaining ungrazed. We conclude that the residual ungrazed area of the pasture, rather than residual sward height, can be used to develop grazing management strategies to control forage intake and diet quality in a wide range of pasture conditions. |
| format | Artículo |
| id | INTA2911 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA29112018-07-30T12:53:44Z Defoliation patterns and their implications for the management of vegetative tropical pastures to control intake and diet quality by cattle Benvenutti, Marcelo A. Pavetti, Daniel Rolando Poppi, Dennis P. Gordon, Iain J. Cangiano, Carlos Alberto Defoliación Manejo de Praderas Dieta Sistemas de Pastoreo Ganado Bovino Cattle Grazing Systems Diet Grassland Management Defoliation Axonopus Catarinensis This study assessed the use of pasture attributes to control daily intake and diet quality during progressive defoliation on pastures of Axonopus catarinensis. Three consecutive 12‐day grazing treatments of progressive defoliation were conducted with Brahman cross‐steers. Daily forage intake and defoliation dynamics were assessed using a pasture‐based method. The treatments differed in initial sward height (33, 44 and 61 cm) and herbage mass (1030, 1740 and 2240 kg ha−1). The post‐grazing residual sward height, at which forage intake decreased, appeared to increase with the initial sward height (12·3, 14·6 and 15·5 cm). Steers grazed up to four distinctive grazing strata in all treatments. The depth and herbage mass content of the top grazing stratum were at least five times higher than the lower grazing strata in all treatments. This explains why forage intake decreased when the top grazing stratum was removed in approximately 93% of the pasture area in all treatments, equivalent to approximately 7% of the pasture area remaining ungrazed. We conclude that the residual ungrazed area of the pasture, rather than residual sward height, can be used to develop grazing management strategies to control forage intake and diet quality in a wide range of pasture conditions. EEA Cerro Azul Fil: Benvenutti, Marcelo A. University of Queensland Gayndah; Australia Fil: Pavetti, Daniel Rolando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina Fil: Poppi, Dennis P. University of Queensland Gayndah; Australia Fil: Gordon, Iain J. James Hutton Institute; Gran Bretaña Fil: Cangiano, Carlos Alberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina 2018-07-30T12:45:27Z 2018-07-30T12:45:27Z 2016-09 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2911 https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12186 1365-2494 https://doi.org/10.1111/gfs.12186 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Grass and forage science 71 (3) : 424-436. (September 2016) |
| spellingShingle | Defoliación Manejo de Praderas Dieta Sistemas de Pastoreo Ganado Bovino Cattle Grazing Systems Diet Grassland Management Defoliation Axonopus Catarinensis Benvenutti, Marcelo A. Pavetti, Daniel Rolando Poppi, Dennis P. Gordon, Iain J. Cangiano, Carlos Alberto Defoliation patterns and their implications for the management of vegetative tropical pastures to control intake and diet quality by cattle |
| title | Defoliation patterns and their implications for the management of vegetative tropical pastures to control intake and diet quality by cattle |
| title_full | Defoliation patterns and their implications for the management of vegetative tropical pastures to control intake and diet quality by cattle |
| title_fullStr | Defoliation patterns and their implications for the management of vegetative tropical pastures to control intake and diet quality by cattle |
| title_full_unstemmed | Defoliation patterns and their implications for the management of vegetative tropical pastures to control intake and diet quality by cattle |
| title_short | Defoliation patterns and their implications for the management of vegetative tropical pastures to control intake and diet quality by cattle |
| title_sort | defoliation patterns and their implications for the management of vegetative tropical pastures to control intake and diet quality by cattle |
| topic | Defoliación Manejo de Praderas Dieta Sistemas de Pastoreo Ganado Bovino Cattle Grazing Systems Diet Grassland Management Defoliation Axonopus Catarinensis |
| url | http://hdl.handle.net/20.500.12123/2911 https://onlinelibrary.wiley.com/doi/abs/10.1111/gfs.12186 https://doi.org/10.1111/gfs.12186 |
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