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| Registros recuperados : 168 | |
| 7. |  | VELAZCO, J.I. Utilización de ensilajes de grano húmedo de sorgo sobre pasturas sembradas In: INIA TREINTA Y TRES. Ensilaje de grano húmedo de sorgo. Jornada de divulgación. Treinta y Tres (Uruguay): INIA, 2010. p. 23-29 (INIA Serie Actividades de Difusión ; 604) Programa Nacional de Lecheria: Ing.Agr. MSc. Yamandú Acosta; Programa Nacional de Carne y Lana: Ing.Agr. MSc. Pablo Rovira, Ing.Agr. José I. Velazco; Unidad de Comunicación y Transferencia de Tecnología: Ing.Agr. MSc. Horacio Saravia| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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| 9. | | VELAZCO, J.I.; QUINTANS, G. Manejo de la recría de vaquillonas para servicio anticipado a los 15 meses In: INIA TREINTA Y TRES. Jornada de divulgación de Producción Animal - Pasturas Treinta y Tres (Uruguay): INIA, 2009 p. 61-67 (INIA Serie Actividades de Difusión ; 591) Programa Nacional Pasturas y Forrajes: Ing. Agr., PhD. Walter Ayala, Director de Programa, Ing. Agr., MPhil. Raúl Bermúdez, Ing. Agr., MSc. Virginia Pravia, Lic., MSc. Felipe Lezama, Téc. en Sistemas Intensivos de Prod.Animal Ethel...| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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| 12. | | VELAZCO, J.I.; ROVIRA, P.J. Consideraciones finales. In: ROVIRA, P.J.; VELAZCO, J.I. (Eds). Suplementación de bovinos en pastoreo: autoconsumo. Montevideo (Uruguay): INIA, 2012. p. 71 (INIA Serie Técnica; 199) Las consideraciones finales se refieren a los trabajos que componen la ST 199.| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó; INIA Treinta y Tres. |
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| 13. | | ROVIRA, P.J.; VELAZCO, J.I. Consideraciones prácticas. In: ROVIRA, P.J.; VELAZCO, J.I. (Eds). Suplementación de bovinos en pastoreo: autoconsumo. Montevideo (Uruguay): INIA, 2012. p. 67-70 (INIA Serie Técnica; 199) Esta parte es complemento de los demás trabajos que componen la ST 199.| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó; INIA Treinta y Tres. |
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| 16. | | VELAZCO, J.I.; ROVIRA, P.J. Análisis integrado de los experimentos. In: ROVIRA, P.J.; VELAZCO, J.I. (Eds). Suplementación de bovinos en pastoreo: autoconsumo. Montevideo (Uruguay): INIA, 2012. p. 57-62 (INIA Serie Técnica; 199) El análisis se refiere a los trabajos que componen la ST 199.| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó; INIA Treinta y Tres. |
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| Registros recuperados : 168 | |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
10/08/2021 |
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Actualizado : |
10/08/2021 |
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Autor : |
BAI, M.; VELAZCO, J.I.; COATES, T. W.; PHILLIPS, F. A.; FLESCH, T. K.; HILL, J.; MAYER, D. G.; TOMKINS, N.W.; HEGARTY, R. S.; CHEN, D. |
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Afiliación : |
MEI BAI, Faculty of Veterinary and Agricultural Science, the University of Melbourne, Australia; JOSÉ I. VELAZCO, Faculty of Environmental and Rural Science, University of New England, Australia; TREVOR W. COATES, Faculty of Veterinary and Agricultural Science, the University of Melbourne, Australia; FRANCES A. PHILLIPS, Centre for Atmospheric Chemistry, University of Wollongong, Australia; THOMAS K. FLESCH, Department of Earth and Atmospheric Sciences, University of Alberta, Canada; JULIAN HILL, Ternes Agricultural Consulting, Australia; DAVID G. MAYER, Agri-Science Queensland, Australia; NIGEL W. TOMKINS, CSIRO Agriculture, Australian Tropical Science and Innovation Precinct, James Cook University, Australia; ROGER S. HEGARTY, School of Environmental and Rural Science, University of New England, Australia; DELI CHEN, Faculty of Veterinary and Agriculture Sciences, the Univesity of Melbourne, Australia. |
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Título : |
Beef cattle methane emissions measured with tracer-ratio and inverse dispersion modelling techniques. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Atmospheric Measurement Techniques, May 2021,volume 14, Issue 5, pages 3469 - 3479. OPEN ACCESS. Doi: https://doi.org/10.5194/amt-14-3469-2021 |
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ISSN : |
1867-8548 |
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DOI : |
10.5194/amt-14-3469-2021 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 8 November 2020 // Discussion started: 25 November 2020 //Revised: 18 March 2021 // Accepted: 6 April 2021 // Published: 12 May 2021.
Corresponding Author: Mei Bai (mei.bai@unimelb.edu.au) |
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Contenido : |
The development and validation of management practices to mitigate greenhouse gas (GHG) emissions from livestock require accurate emission measurements. This study assessed the accuracy of a practical inverse dispersion modelling (IDM) technique to quantify methane (CH4) emitted from a small cattle herd (16 animals) confined to a 63 m × 60 m experimental pen. The IDM technique calculates emissions from the increase in the CH4 concentration measured downwind of the animals. The measurements were conducted for 7 d. Two types of open-path (OP) gas sensors were used to measure concentration in the IDM calculation: a Fourier transform infrared spectrometer (IDM-FTIR) or a CH4 laser (IDM-Laser). The actual cattle emission rate was measured with a tracer-ratio technique using nitrous oxide (N2O) as the tracer gas. We found very good agreement between the two IDM emission estimates (308.1 ± 2.1 ? mean ± SE ? and 304.4 ± 8.0 g CH4 head−1 d−1 for the IDM-FTIR and IDM-Laser respectively) and the tracer-ratio measurements (301.9 ± 1.5 g CH4 head−1 d−1). This study suggests that a practical IDM measurement approach can provide an accurate method of estimating cattle emissions. |
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Palabras claves : |
AGRICULTURE; AGRICULTURE AND ENVIRONMENT; ANIMAL CULTURE; ANIMAL NUTRITION; CATTLE; FEEDS AND FEEDING; HOUSING AND ENVIRONMENTAL CONTROL; RANGE MANAGEMENT; RANGELANDS. |
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NAL Tesauro : |
AGRICULTURE. |
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Asunto categoría : |
L01 Ganadería |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15925/1/amt-14-3469-2021.pdf
https://amt.copernicus.org/articles/14/3469/2021/
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|
Marc : |
LEADER 02706naa a2200385 a 4500
001 1062343
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008 2021 bl uuuu u00u1 u #d
022 $a1867-8548
024 7 $a10.5194/amt-14-3469-2021$2DOI
100 1 $aBAI, M.
245 $aBeef cattle methane emissions measured with tracer-ratio and inverse dispersion modelling techniques.$h[electronic resource]
260 $c2021
500 $aArticle history: Received: 8 November 2020 // Discussion started: 25 November 2020 //Revised: 18 March 2021 // Accepted: 6 April 2021 // Published: 12 May 2021. Corresponding Author: Mei Bai (mei.bai@unimelb.edu.au)
520 $aThe development and validation of management practices to mitigate greenhouse gas (GHG) emissions from livestock require accurate emission measurements. This study assessed the accuracy of a practical inverse dispersion modelling (IDM) technique to quantify methane (CH4) emitted from a small cattle herd (16 animals) confined to a 63 m × 60 m experimental pen. The IDM technique calculates emissions from the increase in the CH4 concentration measured downwind of the animals. The measurements were conducted for 7 d. Two types of open-path (OP) gas sensors were used to measure concentration in the IDM calculation: a Fourier transform infrared spectrometer (IDM-FTIR) or a CH4 laser (IDM-Laser). The actual cattle emission rate was measured with a tracer-ratio technique using nitrous oxide (N2O) as the tracer gas. We found very good agreement between the two IDM emission estimates (308.1 ± 2.1 ? mean ± SE ? and 304.4 ± 8.0 g CH4 head−1 d−1 for the IDM-FTIR and IDM-Laser respectively) and the tracer-ratio measurements (301.9 ± 1.5 g CH4 head−1 d−1). This study suggests that a practical IDM measurement approach can provide an accurate method of estimating cattle emissions.
650 $aAGRICULTURE
653 $aAGRICULTURE
653 $aAGRICULTURE AND ENVIRONMENT
653 $aANIMAL CULTURE
653 $aANIMAL NUTRITION
653 $aCATTLE
653 $aFEEDS AND FEEDING
653 $aHOUSING AND ENVIRONMENTAL CONTROL
653 $aRANGE MANAGEMENT
653 $aRANGELANDS
700 1 $aVELAZCO, J.I.
700 1 $aCOATES, T. W.
700 1 $aPHILLIPS, F. A.
700 1 $aFLESCH, T. K.
700 1 $aHILL, J.
700 1 $aMAYER, D. G.
700 1 $aTOMKINS, N.W.
700 1 $aHEGARTY, R. S.
700 1 $aCHEN, D.
773 $tAtmospheric Measurement Techniques, May 2021,volume 14, Issue 5, pages 3469 - 3479. OPEN ACCESS. Doi: https://doi.org/10.5194/amt-14-3469-2021
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