Low-intensity, high-frequency grazing strategy increases herbage production and beef cattle performance on sorghum pastures.

PORTUGAL, T. B. - SZYMCZAK, L. S. - DE MORAES, A. - FONSECA, L. - MEZZALIRA, J.C. - SAVIAN, J.V. - ZUBIETA, A. S. - BREMM, C. - DE FACCIO CARVALHO, P. C. - MONTEIRO, A. L. G.

Resumen:

We assessed the effects of high-intensity and low-frequency (HILF) vs. low-intensity and high-frequency (LIHF) grazing on herbage production and performance of beef cattle grazing sorghum pastures. The experimental design was a complete randomized block with two treatments and four replicates (paddocks), carried out in 2014/15. The management target of 50 and 30 cm for pre- and post-grazing, respectively, a LIHF grazing management strategy oriented to maximize beef cattle herbage intake per unit time, was compared with a HILF grazing management strategy of 80 and 20 cm for pre- and post-grazing, respectively, aiming to maximize herbage accumulation and harvest efficiency. Sixteen Brangus steers of 15-month-old and 265 ± 21 kg of live weight (LW) were randomly distributed to paddocks (experimental units). The LIHF resulted in shorter rest periods when compared with the HILF. The greater leaf lamina mass in LIHF allowed greater sward light interception at post-grazing, resulting in greater total herbage production than HILF (7581 and 4154 kg DM/ha, respectively). The average daily gain (ADG) of steers was greater for the LIHF than for the HILF treatment (0.950 and 0.702 kg/animal, respectively); however, even with a greater stocking rate in the HILF, there was no difference for LW gain per ha, with an average of 4 kg LW/ha/day. Our findings demonstrated that the LIHF strategy that is based on offering to the animals an optimal sward structure to favor the maximum herbage intake rate fosters greater herbage production, harvesting efficiency, and ADG without compromising LW gain per area of beef steers, despite the lower herbage harvested per stocking cycle.


Detalles Bibliográficos
2022
OPTIMAL SWARD STRUCTURE
GRAZING MANAGEMENT
ROTATIONAL STOCKING
Inglés
Instituto Nacional de Investigación Agropecuaria
AINFO
http://www.ainfo.inia.uy/consulta/busca?b=pc&id=62627&biblioteca=vazio&busca=62627&qFacets=62627
Acceso abierto
_version_ 1805580527116222464
author PORTUGAL, T. B.
author2 SZYMCZAK, L. S.
DE MORAES, A.
FONSECA, L.
MEZZALIRA, J.C.
SAVIAN, J.V.
ZUBIETA, A. S.
BREMM, C.
DE FACCIO CARVALHO, P. C.
MONTEIRO, A. L. G.
author2_role author
author
author
author
author
author
author
author
author
author_facet PORTUGAL, T. B.
SZYMCZAK, L. S.
DE MORAES, A.
FONSECA, L.
MEZZALIRA, J.C.
SAVIAN, J.V.
ZUBIETA, A. S.
BREMM, C.
DE FACCIO CARVALHO, P. C.
MONTEIRO, A. L. G.
author_role author
bitstream.checksum.fl_str_mv 6d84320c8fec79c27bd8fe727f8c588e
bitstream.checksumAlgorithm.fl_str_mv MD5
bitstream.url.fl_str_mv https://redi.anii.org.uy/jspui/bitstream/20.500.12381/2073/1/sword-2022-10-20T22%3a59%3a48.original.xml
collection AINFO
dc.creator.none.fl_str_mv PORTUGAL, T. B.
SZYMCZAK, L. S.
DE MORAES, A.
FONSECA, L.
MEZZALIRA, J.C.
SAVIAN, J.V.
ZUBIETA, A. S.
BREMM, C.
DE FACCIO CARVALHO, P. C.
MONTEIRO, A. L. G.
dc.date.accessioned.none.fl_str_mv 2022-10-21T01:59:48Z
dc.date.available.none.fl_str_mv 2022-10-21T01:59:48Z
dc.date.issued.none.fl_str_mv 2022
dc.date.updated.none.fl_str_mv 2022-10-21T01:59:48Z
dc.description.abstract.none.fl_txt_mv We assessed the effects of high-intensity and low-frequency (HILF) vs. low-intensity and high-frequency (LIHF) grazing on herbage production and performance of beef cattle grazing sorghum pastures. The experimental design was a complete randomized block with two treatments and four replicates (paddocks), carried out in 2014/15. The management target of 50 and 30 cm for pre- and post-grazing, respectively, a LIHF grazing management strategy oriented to maximize beef cattle herbage intake per unit time, was compared with a HILF grazing management strategy of 80 and 20 cm for pre- and post-grazing, respectively, aiming to maximize herbage accumulation and harvest efficiency. Sixteen Brangus steers of 15-month-old and 265 ± 21 kg of live weight (LW) were randomly distributed to paddocks (experimental units). The LIHF resulted in shorter rest periods when compared with the HILF. The greater leaf lamina mass in LIHF allowed greater sward light interception at post-grazing, resulting in greater total herbage production than HILF (7581 and 4154 kg DM/ha, respectively). The average daily gain (ADG) of steers was greater for the LIHF than for the HILF treatment (0.950 and 0.702 kg/animal, respectively); however, even with a greater stocking rate in the HILF, there was no difference for LW gain per ha, with an average of 4 kg LW/ha/day. Our findings demonstrated that the LIHF strategy that is based on offering to the animals an optimal sward structure to favor the maximum herbage intake rate fosters greater herbage production, harvesting efficiency, and ADG without compromising LW gain per area of beef steers, despite the lower herbage harvested per stocking cycle.
dc.identifier.none.fl_str_mv http://www.ainfo.inia.uy/consulta/busca?b=pc&id=62627&biblioteca=vazio&busca=62627&qFacets=62627
dc.language.iso.none.fl_str_mv en
eng
dc.rights.es.fl_str_mv Acceso abierto
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
dc.source.none.fl_str_mv reponame:AINFO
instname:Instituto Nacional de Investigación Agropecuaria
instacron:Instituto Nacional de Investigación Agropecuaria
dc.subject.none.fl_str_mv OPTIMAL SWARD STRUCTURE
GRAZING MANAGEMENT
ROTATIONAL STOCKING
dc.title.none.fl_str_mv Low-intensity, high-frequency grazing strategy increases herbage production and beef cattle performance on sorghum pastures.
dc.type.none.fl_str_mv Article
PublishedVersion
info:eu-repo/semantics/article
dc.type.version.none.fl_str_mv info:eu-repo/semantics/publishedVersion
description We assessed the effects of high-intensity and low-frequency (HILF) vs. low-intensity and high-frequency (LIHF) grazing on herbage production and performance of beef cattle grazing sorghum pastures. The experimental design was a complete randomized block with two treatments and four replicates (paddocks), carried out in 2014/15. The management target of 50 and 30 cm for pre- and post-grazing, respectively, a LIHF grazing management strategy oriented to maximize beef cattle herbage intake per unit time, was compared with a HILF grazing management strategy of 80 and 20 cm for pre- and post-grazing, respectively, aiming to maximize herbage accumulation and harvest efficiency. Sixteen Brangus steers of 15-month-old and 265 ± 21 kg of live weight (LW) were randomly distributed to paddocks (experimental units). The LIHF resulted in shorter rest periods when compared with the HILF. The greater leaf lamina mass in LIHF allowed greater sward light interception at post-grazing, resulting in greater total herbage production than HILF (7581 and 4154 kg DM/ha, respectively). The average daily gain (ADG) of steers was greater for the LIHF than for the HILF treatment (0.950 and 0.702 kg/animal, respectively); however, even with a greater stocking rate in the HILF, there was no difference for LW gain per ha, with an average of 4 kg LW/ha/day. Our findings demonstrated that the LIHF strategy that is based on offering to the animals an optimal sward structure to favor the maximum herbage intake rate fosters greater herbage production, harvesting efficiency, and ADG without compromising LW gain per area of beef steers, despite the lower herbage harvested per stocking cycle.
eu_rights_str_mv openAccess
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rights_invalid_str_mv Acceso abierto
spelling 2022-10-21T01:59:48Z2022-10-21T01:59:48Z20222022-10-21T01:59:48Zhttp://www.ainfo.inia.uy/consulta/busca?b=pc&id=62627&biblioteca=vazio&busca=62627&qFacets=62627We assessed the effects of high-intensity and low-frequency (HILF) vs. low-intensity and high-frequency (LIHF) grazing on herbage production and performance of beef cattle grazing sorghum pastures. The experimental design was a complete randomized block with two treatments and four replicates (paddocks), carried out in 2014/15. The management target of 50 and 30 cm for pre- and post-grazing, respectively, a LIHF grazing management strategy oriented to maximize beef cattle herbage intake per unit time, was compared with a HILF grazing management strategy of 80 and 20 cm for pre- and post-grazing, respectively, aiming to maximize herbage accumulation and harvest efficiency. Sixteen Brangus steers of 15-month-old and 265 ± 21 kg of live weight (LW) were randomly distributed to paddocks (experimental units). The LIHF resulted in shorter rest periods when compared with the HILF. The greater leaf lamina mass in LIHF allowed greater sward light interception at post-grazing, resulting in greater total herbage production than HILF (7581 and 4154 kg DM/ha, respectively). The average daily gain (ADG) of steers was greater for the LIHF than for the HILF treatment (0.950 and 0.702 kg/animal, respectively); however, even with a greater stocking rate in the HILF, there was no difference for LW gain per ha, with an average of 4 kg LW/ha/day. Our findings demonstrated that the LIHF strategy that is based on offering to the animals an optimal sward structure to favor the maximum herbage intake rate fosters greater herbage production, harvesting efficiency, and ADG without compromising LW gain per area of beef steers, despite the lower herbage harvested per stocking cycle.https://hdl.handle.net/20.500.12381/2073enenginfo:eu-repo/semantics/openAccessAcceso abiertoOPTIMAL SWARD STRUCTUREGRAZING MANAGEMENTROTATIONAL STOCKINGLow-intensity, high-frequency grazing strategy increases herbage production and beef cattle performance on sorghum pastures.ArticlePublishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionreponame:AINFOinstname:Instituto Nacional de Investigación Agropecuariainstacron:Instituto Nacional de Investigación AgropecuariaPORTUGAL, T. B.SZYMCZAK, L. S.DE MORAES, A.FONSECA, L.MEZZALIRA, J.C.SAVIAN, J.V.ZUBIETA, A. S.BREMM, C.DE FACCIO CARVALHO, P. C.MONTEIRO, A. L. G.SWORDsword-2022-10-20T22:59:48.original.xmlOriginal SWORD entry documentapplication/octet-stream3069https://redi.anii.org.uy/jspui/bitstream/20.500.12381/2073/1/sword-2022-10-20T22%3a59%3a48.original.xml6d84320c8fec79c27bd8fe727f8c588eMD5120.500.12381/20732022-10-20 22:59:48.612oai:redi.anii.org.uy:20.500.12381/2073Gobiernohttp://inia.uyhttps://redi.anii.org.uy/oai/requestlorrego@inia.org.uyUruguayopendoar:2022-10-21T01:59:48AINFO - Instituto Nacional de Investigación Agropecuariafalse
spellingShingle Low-intensity, high-frequency grazing strategy increases herbage production and beef cattle performance on sorghum pastures.
PORTUGAL, T. B.
OPTIMAL SWARD STRUCTURE
GRAZING MANAGEMENT
ROTATIONAL STOCKING
status_str publishedVersion
title Low-intensity, high-frequency grazing strategy increases herbage production and beef cattle performance on sorghum pastures.
title_full Low-intensity, high-frequency grazing strategy increases herbage production and beef cattle performance on sorghum pastures.
title_fullStr Low-intensity, high-frequency grazing strategy increases herbage production and beef cattle performance on sorghum pastures.
title_full_unstemmed Low-intensity, high-frequency grazing strategy increases herbage production and beef cattle performance on sorghum pastures.
title_short Low-intensity, high-frequency grazing strategy increases herbage production and beef cattle performance on sorghum pastures.
title_sort Low-intensity, high-frequency grazing strategy increases herbage production and beef cattle performance on sorghum pastures.
topic OPTIMAL SWARD STRUCTURE
GRAZING MANAGEMENT
ROTATIONAL STOCKING
url http://www.ainfo.inia.uy/consulta/busca?b=pc&id=62627&biblioteca=vazio&busca=62627&qFacets=62627