Fecha/hora: 16/06/2024 00:01:50

Biblioteca(s): | INIA Treinta y Tres.
Fecha corriente: | 12/02/2021
Fecha de la última actualización: | 12/02/2021
Autoria: | SCHONS, R.M.T.; LACA, E.A.; SAVIAN, J.V.; MEZZALIRA, J.C.; SCHENEIDER, E.A.N.; CAETANO, M.; ZUBIETA, A.S.; BENVENUTTI, M.A.; CARVALHO, P.C. DE F.
Afiliación: | R.M.T. SCHONS, Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazi; E.A. LACA, University of California. Department of Plant Environmental Sciences. Davis, CA, USA.; JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay / Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazil.; J.C. MEZZALIRA, Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazil.; E.A.N. SCHENEIDER, Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazil.; M. CAETANO, Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazil.; A.S. ZUBIETA, Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazil.; M.A. BENVENUTTI, Agri-Science. Department of Agriculture and Fisheries, Queenland, Australia.; P.C. DE F. CARVALHO, Federal University of Rio Grande do Sul. Grazing Ecology Research Group. RS, Brazil.
Título: | ´Rotatinuous` stocking: An innovation in grazing management to foster both herbage and animal production.
Año de publicación: | 2021
Fuente/Imprenta: | Livestock Science, March 2021, Volume 245, Article number 104406. Doi: https://doi.org/10.1016/j.livsci.2021.104406
DOI: | 10.1016/j.livsci.2021.104406
Idioma: | Inglés
Notas: | Article history: Received 23 April 2019 / Received in revised form 30 November 2020 / Accepted 17 January 2021 / Available online 20 January 2021.

Contenido:

?Rotatinuous? stocking is a grazing management strategy based on animal behavioural responses to sward structure which is designed to maximize herbage intake per unit of grazing time. It is an alternative to traditional grazing management practices focusing on pasture use efficiency and maximizing herbage accumulation and harvesting. To investigate this approach, Italian ryegrass (Lolium multiflorum) pastures grazed by sheep were evaluated in 2014 and 2015 under two contrasting grazing management strategies. Paddocks were distributed under a complete randomized block design with four replicates. Grazing management strategies were: traditional rotational stocking (RT), with pre- and post-grazing sward heights of 25 and 5 cm, respectively, and ?Rotatinuous? stocking (RN), with pre- and post-grazing sward heights of 18 and 11 cm, respectively. Thirty-two castrated Texel × Polwarth crossbred lambs were randomly allocated to treatments. As a consequence of grazing strategies, the stocking cycles were 12 and 4, with resting periods of 13 and 35 days, respectively, for RN and RT treatments.
Herbage production, total herbage harvested, and feed conversion efficiency were 28%, 20%, and 40%, respectively, greater for RN than for RT treatment. Although the stocking rate was lower, the average daily gain per animal and live weigh gain per hectare were 153% and 43%, respectively, greater for the RN treatment.
Despite the RN treatment being orientated to maximize herbage intake per unit of grazing time, it results in greater total herbage production and harvesting. We conclude that the ?Rotatinuous? stocking strategy is not necessarily reversed by low herbage harvesting efficiency. This innovation in grazing management conciliates high herbage and animal production at the same time.

Palabras-Clave: | HERBAGE HARVEST; INTAKE RATE; PASTURE PRODUCTION; ROTATIONAL STOCKING; SHEEP PERFORMANCE; SWARD STRUCTURE.
Categoría del tema: | --
Registro original: | INIA Treinta y Tres (TT)
Ejemplares: | TT - (103241-1) - PXI - AP - CD - PP/LIVESTOCK-SCIENCE-2021-Savian -  -  - DIS