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 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
25/07/2016 |
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Actualizado : |
09/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
VELAZCO, J.I.; HERD, R.M.; COTTLE, D.J.; HEGARTY, R.S. |
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Afiliación : |
JOSÉ IGNACIO VELAZCO DE LOS REYES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. University of New England, Australia.; Department of Primary Industries, Australia.; University of New England, Australia; University of New England, Australia. |
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Título : |
Daily methane emissions and emission intensity of grazing beef cattle genetically divergent for residual feed intake. |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
Animal Production Science, 2017, v. 57, p. 627-635. |
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DOI : |
10.1071/AN15111 |
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Idioma : |
Inglés |
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Notas : |
Article history: Submitted: 27 February 2015 Accepted: 15 January 2016 Published (Preview): 27 May 2016. |
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Contenido : |
Abstract:
As daily methane production (DMP; g CH4/day) is strongly correlated with dry matter intake (DMI), the breeding of cattle that require less feed to achieve a desired rate of average daily gain (ADG) by selection for a low residual feed intake (RFI) can be expected to reduce DMP and also emission intensity (EI; g CH4/kg ADG). An xperiment was conducted to compare DMP and EI of Angus cattle genetically divergent for RFI and 400-day weight (400dWT). In a 6-week grazing study, 64 yearling-age cattle (30 steers, 34 heifers) were grazed on temperate pastures, with heifers and steers grazing separate paddocks. Liveweight (LW) was monitored weekly and DMP of individual cattle was measured by a GreenFeed emission monitoring unit in each paddock. Thirty-nine of the possible 64 animals had emission data recorded for 15 or more days, and only data for these animals were analysed. For these cattle, regression against their mid-parent estimated breeding value (EBV) for post-weaning RFI (RFI-EBV) showed that a lower RFI-EBV was associated with higher LW at the start of experiment. Predicted dry matter intake (pDMI), predicted DMP (pDMP) and measured DMP (mDMP) were all egatively correlated with RFI-EBV (P < 0.05), whereas ADG, EI, predicted CH4 yield (pMY; g CH4/kg DMI) were not correlated with RFI-EBV (P > 0.1). Daily CH4 production was positively correlated with animal LW and ADG (P < 0.05). The associations between ADG and its dependent traits EI and pMY and predicted feed conversion ratio (kg pDMI/kg ADG) were strongly negative (r = ?0.82, ?0.57 and ?0.85, P < 0.001) implying that faster daily growth by cattle was accompanied by lower EI, MY and feed conversion ratio. These results show that cattle genetically divergent for RFI do not necessarily differ in ADG, EI or pMY on pasture and that, if heavier, cattle with lower RFI-EBV can actually have higher DMP while grazing moderate quality pastures. MenosAbstract:
As daily methane production (DMP; g CH4/day) is strongly correlated with dry matter intake (DMI), the breeding of cattle that require less feed to achieve a desired rate of average daily gain (ADG) by selection for a low residual feed intake (RFI) can be expected to reduce DMP and also emission intensity (EI; g CH4/kg ADG). An xperiment was conducted to compare DMP and EI of Angus cattle genetically divergent for RFI and 400-day weight (400dWT). In a 6-week grazing study, 64 yearling-age cattle (30 steers, 34 heifers) were grazed on temperate pastures, with heifers and steers grazing separate paddocks. Liveweight (LW) was monitored weekly and DMP of individual cattle was measured by a GreenFeed emission monitoring unit in each paddock. Thirty-nine of the possible 64 animals had emission data recorded for 15 or more days, and only data for these animals were analysed. For these cattle, regression against their mid-parent estimated breeding value (EBV) for post-weaning RFI (RFI-EBV) showed that a lower RFI-EBV was associated with higher LW at the start of experiment. Predicted dry matter intake (pDMI), predicted DMP (pDMP) and measured DMP (mDMP) were all egatively correlated with RFI-EBV (P < 0.05), whereas ADG, EI, predicted CH4 yield (pMY; g CH4/kg DMI) were not correlated with RFI-EBV (P > 0.1). Daily CH4 production was positively correlated with animal LW and ADG (P < 0.05). The associations between ADG and its dependent traits EI and pMY and predicted feed conv... Presentar Todo |
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Palabras claves : |
CH4; FEED CONSERVATION EFFICIENCY; GRAZING CATTLE; GREENHOUSE GASES; MEASUREMENT; RFI. |
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Thesagro : |
GASES DE EFECTO INVERNADERO; MEDIDAS; METANO; PASTOREO DE GANADO. |
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Asunto categoría : |
T01 Polución |
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Marc : |
LEADER 02893naa a2200301 a 4500
001 1055090
005 2019-10-09
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1071/AN15111$2DOI
100 1 $aVELAZCO, J.I.
245 $aDaily methane emissions and emission intensity of grazing beef cattle genetically divergent for residual feed intake.$h[electronic resource]
260 $c2017
500 $aArticle history: Submitted: 27 February 2015 Accepted: 15 January 2016 Published (Preview): 27 May 2016.
520 $aAbstract: As daily methane production (DMP; g CH4/day) is strongly correlated with dry matter intake (DMI), the breeding of cattle that require less feed to achieve a desired rate of average daily gain (ADG) by selection for a low residual feed intake (RFI) can be expected to reduce DMP and also emission intensity (EI; g CH4/kg ADG). An xperiment was conducted to compare DMP and EI of Angus cattle genetically divergent for RFI and 400-day weight (400dWT). In a 6-week grazing study, 64 yearling-age cattle (30 steers, 34 heifers) were grazed on temperate pastures, with heifers and steers grazing separate paddocks. Liveweight (LW) was monitored weekly and DMP of individual cattle was measured by a GreenFeed emission monitoring unit in each paddock. Thirty-nine of the possible 64 animals had emission data recorded for 15 or more days, and only data for these animals were analysed. For these cattle, regression against their mid-parent estimated breeding value (EBV) for post-weaning RFI (RFI-EBV) showed that a lower RFI-EBV was associated with higher LW at the start of experiment. Predicted dry matter intake (pDMI), predicted DMP (pDMP) and measured DMP (mDMP) were all egatively correlated with RFI-EBV (P < 0.05), whereas ADG, EI, predicted CH4 yield (pMY; g CH4/kg DMI) were not correlated with RFI-EBV (P > 0.1). Daily CH4 production was positively correlated with animal LW and ADG (P < 0.05). The associations between ADG and its dependent traits EI and pMY and predicted feed conversion ratio (kg pDMI/kg ADG) were strongly negative (r = ?0.82, ?0.57 and ?0.85, P < 0.001) implying that faster daily growth by cattle was accompanied by lower EI, MY and feed conversion ratio. These results show that cattle genetically divergent for RFI do not necessarily differ in ADG, EI or pMY on pasture and that, if heavier, cattle with lower RFI-EBV can actually have higher DMP while grazing moderate quality pastures.
650 $aGASES DE EFECTO INVERNADERO
650 $aMEDIDAS
650 $aMETANO
650 $aPASTOREO DE GANADO
653 $aCH4
653 $aFEED CONSERVATION EFFICIENCY
653 $aGRAZING CATTLE
653 $aGREENHOUSE GASES
653 $aMEASUREMENT
653 $aRFI
700 1 $aHERD, R.M.
700 1 $aCOTTLE, D.J.
700 1 $aHEGARTY, R.S.
773 $tAnimal Production Science, 2017$gv. 57, p. 627-635.
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Registro original : |
INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
01/03/2021 |
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Actualizado : |
01/03/2021 |
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Tipo de producción científica : |
Documentos |
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Autor : |
BIZZOZERO, F.; CARRO, A.; GÓMEZ, A.; ACHKAR, M.; GOYENOLA, G.; CARÁMBULA, M. |
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Afiliación : |
FEDERICO BIZZOZERO, Coordinador de Programa de Agroecología, Centro Uruguayo de Tecnologías Apropiadas (CEUTA).; GASTÓN CARRO, Programa de Agroecología, Centro Uruguayo de Tecnologías Apropiadas (CEUTA).; ALBERTO GÓMEZ PERAZZOLI, Integrante del grupo asesor de la RAU (Red de Agroecología de Uruguay).; MARCEL ACHKAR, Laboratorio de Desarrollo Sustentable y Gestión Ambiental del Territorio-Geografía. Instituto de Ecología y Ciencias Ambientales- Facultad de Ciencias. Universidad de la República.; GUILLERMO GOYENOLA, Departamento de Ecología y Gestión Ambiental Ecología y Rehabilitación de Sistemas Acuáticos. Centro Universitario Regional Este-Facultad de Ciencias. Universidad de la República; MATÍAS CARÁMBULA, Director general de la Agencia de Desarrollo Rural. Gobierno de Canelones. Uruguay. |
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Título : |
Zonas de amortiguación agroforestales: diseños agroecológicos para el cuidado del agua. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Montevideo (UY): CEUTA, 2020. |
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Páginas : |
44 p. |
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Idioma : |
Español |
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Contenido : |
Existe un volumen importante de información que corrobora que en nuestro país el estado de los sistemas hídricos y la calidad de las aguas en zonas rurales sufren crecientes procesos de degradación. Esta degradación es consecuencia, en gran medida, de los impactos de la intensificación agropecuaria. El trabajo elaborado por CEUTA Zonas de amortiguación agroforestales: diseños agroecológicos para el cuidado del agua tiene por objetivo brindar un marco teórico, normativo, metodológico y tecnológico para la implementación de Zonas de Amortiguación (Buffer) Agroforestales (ZAAs) anexas a sistemas hídricos, basadas en un enfoque agroecológico. |
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Palabras claves : |
Agroecológico; ORDENAMIENTO TERRITORIAL; Zonas de Amortiguación Agroforestales. |
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Thesagro : |
CALIDAD DEL AGUA; SISTEMAS AGROFORESTALES. |
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Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15188/1/ZAAS-2020-CEUTA.pdf
https://www.ceuta.org.uy/data/publicaciones/ZAAS_2020.pdf
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Marc : |
LEADER 01368nam a2200241 a 4500
001 1061783
005 2021-03-01
008 2020 bl uuuu u0uu1 u #d
100 1 $aBIZZOZERO, F.
245 $aZonas de amortiguación agroforestales$bdiseños agroecológicos para el cuidado del agua.$h[electronic resource]
260 $aMontevideo (UY): CEUTA$c2020
300 $a44 p.
520 $aExiste un volumen importante de información que corrobora que en nuestro país el estado de los sistemas hídricos y la calidad de las aguas en zonas rurales sufren crecientes procesos de degradación. Esta degradación es consecuencia, en gran medida, de los impactos de la intensificación agropecuaria. El trabajo elaborado por CEUTA Zonas de amortiguación agroforestales: diseños agroecológicos para el cuidado del agua tiene por objetivo brindar un marco teórico, normativo, metodológico y tecnológico para la implementación de Zonas de Amortiguación (Buffer) Agroforestales (ZAAs) anexas a sistemas hídricos, basadas en un enfoque agroecológico.
650 $aCALIDAD DEL AGUA
650 $aSISTEMAS AGROFORESTALES
653 $aAgroecológico
653 $aORDENAMIENTO TERRITORIAL
653 $aZonas de Amortiguación Agroforestales
700 1 $aCARRO, A.
700 1 $aGÓMEZ, A.
700 1 $aACHKAR, M.
700 1 $aGOYENOLA, G.
700 1 $aCARÁMBULA, M.
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