Fecha/hora: 30/05/2024 07:47:53

Biblioteca(s): 	INIA Treinta y Tres.	
Fecha corriente: 	03/01/2022	
Fecha de la última actualización: 	01/09/2022	
Autoria: 	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.	
Afiliación: 	THALES BAGGIO PORTUGAL, Department of Crop Production and Protection, Federal University of Paraná, Curitiba 80035-050, Brazil. CONSIPA—Consulting on Integrated Crop-Livestock Systems, Ponta Grossa 84015-500, Brazil.; LEONARDO SLVESTRI SZYMCZAK, Department of Crop Production and Protection, Federal University of Paraná, Curitiba 80035-050, Brazil. Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre 91540-000, Brazil; ANIBAL DE MORAES, Department of Crop Production and Protection, Federal University of Paraná, Curitiba 80035-050, Brazil.; LIDIANE FONSECA, Department of Crop Production and Protection, Federal University of Paraná, Curitiba 80035-050, Brazil.; JEAN CARLOS MEZZALIRA, CONSIPA—Consulting on Integrated Crop-Livestock Systems, Ponta Grossa 84015-500, Brazil.; JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANGEL SÁNCHEZ ZUBIETA, Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre 91540-000, Brazil.; CAROLINA BREMM, Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre 91540-000, Brazil; PAULO CÉSAR DE FACCIO CARVALHO, Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre 91540-000, Brazil; ALDA LÚCIA GOMES MONTEIRO, Department of Crop Production and Protection, Federal University of Paraná, Curitiba 80035-050, Brazil. Department of Crop Production and Protection, Federal University of Paraná, Curitiba 80035-050, Brazil.	
Título: 	Low-intensity, high-frequency grazing strategy increases herbage production and beef cattle performance on sorghum pastures.	
Año de publicación: 	2022	
Fuente/Imprenta: 	Animals 2022, volume 12, number 1, 13 pages. OPEN ACCESS. doi: https://doi.org/10.3390/ani12010013	
Idioma: 	Inglés	
Notas: 	Article history: Received: 17 October 2021 / Revised: 8 November 2021 / Accepted: 10 November 2021 / Published: 22 December 2021 .	
Contenido: 	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.	
Palabras-Clave: 	GRAZING MANAGEMENT; OPTIMAL SWARD STRUCTURE; ROTATIONAL STOCKING.	
Categoría del tema: 	--	
URL: 	http://www.ainfo.inia.uy/digital/bitstream/item/16653/1/animals-12-00013-Baggio-Portugal.pdf	
Registro original: 	INIA Treinta y Tres (TT)	
Ejemplares: 	TT - (103458-1) - PXI - AP - DD - Animals-2022-PORTUGAL -  -  - DIS