Fecha/hora: 06/06/2024 12:43:15

Biblioteca(s): | INIA Treinta y Tres.
Fecha corriente: | 08/09/2020
Fecha de la última actualización: | 17/09/2020
Autoria: | SAVIAN, J.V.; TRES SCHONS, R. M.; SOUZA FILHO, W. DE; SÁNCHEZ ZUBIETA, A.; KINDLEIN, L.; BINDELLE, J.; BAYER, C.; BREMM, C.; CARVALHO, P. C. DE F.
Afiliación: | JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.; RADAEL MARINHO TRES SCHONS, Grazing Ecology Research Group, Federal University of Río Grande do Sul, Porto Alegre, Brazil.; WILLIAM DE SOUZA FILHO, Grazing Ecology Research Group, Federal University of Río Grande do Sul, Porto Alegre, Brazil.; ANGEL SÁNCHEZ ZUBIETA, Grazing Ecology Research Group, Federal University of Río Grande do Sul, Porto Alegre, Brazil.; LIRIS KINDLEIN, Department of Preventive Veterinary Medicine, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.; JEROME BINDELLE, Precision Livestock and Nutrition Unit, Gembloux Agro-Bio Tech, TERRA, Teaching and Research Centre, University of Liege, Glembloux, Belgium; CIMÉLIO BAYER, Department of Soil Science, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.; CAROLINA BREMM, Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.; PAULO CÉSAR DE FACCIO CARVALHO, Grazing Ecology Research Group, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
Título: | "Rotatinuous" stocking as a climate-smart grazing management strategy for sheep production.
Año de publicación: | 2020
Fuente/Imprenta: | Science of the Total Environment 2020, v. 753, 141790. https://doi.org/10.1016/j.scitotenv.2020.141790
DOI: | 10.1016/j.scitotenv.2020.141790
Idioma: | Inglés
Notas: | Article history: Received 15 June 2020. Received in revised form 8 August 2020. Accepted 17 August 2020. Available online 22 August 2020.

Contenido:

We aimed to evaluate the effect of different grazing management strategies on carcass characteristics traits, meat quality and CH4 intensity and yield of lambs grazing Italian ryegrass pastures in Southern Brazil. A grazing trial was performed (2014 and 2015) in a randomized complete block design with two grazing management targets and four replicates. Treatments 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. Castrated crossbred Texel and Polwarth lambs were used. Results indicated that diet cost per kg of dry matter (p = 0.001) and per hectare (p < 0.001) were lower for RN than for RT treatment. Final live weight (p = 0.022) and hot and cold carcass weight (p = 0.006) were greater for the RN treatment. All commercial cuts were greater for RN than for RT treatment. The RN treatment presented greater (p < 0.001) production of carcass, edible food and crude protein. Feed efficiency and feed cost conversion were better for RN than for RT treatment.
CH4 intensity per kg of carcass, edible food and crude protein gain were 2.6, 2.7 and 2.1 times lower (p < 0.001) for RN. Moreover, CH4 yield was lower (p = 0.014) for RN than for RT treatment, with an average of 7.6 and 8.3% of the gross energy intake, respectively. We conclude that the "Rotatinuous" stocking results in a greater carcass production, carcass quality and lower diet cost, and CH4 intensity and yield of grazing lambs. Adopting this grazing management strategy could enhance both lamb production and mitigation of CH4 intensity and yield in grazing ecosystems, which could be considered a good example of climate-smart livestock production.

Palabras-Clave: | FOOD PRODUCTION; GREENHOUSE GASES; LAMB CARCASS; METHANE INTENSITY; ROTATIONAL STOCKING; SWARD MANAGEMENT.
Categoría del tema: | P01 Conservación de la naturaleza y recursos de La tierra
Registro original: | INIA Treinta y Tres (TT)
Ejemplares: | TT - (103129-1) - PXI - AP - DD - ScienceTotalEnvironment/2021/Savian -  -  - DIS