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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
21/07/2017 |
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Actualizado : |
21/07/2017 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
VICENTE-SERRANO, S.M.; BIDEGAIN, M.; TOMAS-BURGUERA, M.; DOMÍNGUEZ-CASTRO, F.; EL KENAWY, A.; MCVICAR, T.R.; AZORIN-MOLINA, C.; LÓPEZ-MORENO, J.I.; NIETO, R.; GIMENO, L.; GIMÉNEZ, A. |
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Afiliación : |
SERGIO M. VICENTE-SERRANO, Consejo Superior de Investigaciones Científicas (IPE–CSIC), Instituto Pirenaico de Ecología, Zaragoza, Spain; MARIO BIDEGAIN, Instituto Uruguayo de Meteorología, Montevideo, Uruguay; MIQUEL TOMAS-BURGUERA, Department of Soil and Water, Estación Experimental de Aula Dei (EEAD-CSIC), Zaragoza, Spain; FERNANDO DOMÍNGUEZ-CASTRO, Consejo Superior de Investigaciones Científicas (IPE–CSIC), Instituto Pirenaico de Ecología, Zaragoza, Spain; AHMED EL KENAWY, Consejo Superior de Investigaciones Científicas (IPE–CSIC), Instituto Pirenaico de Ecología, Zaragoza, Spain; Department of Geography, Mansoura University, Egypt; TIM R. MCVIAR, CSIRO Land and Water, Canberra, ACT, Australia; CESAR AZORIN-MOLINA, Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Sweden; JUAN I. LÓPEZ-MORENO, Consejo Superior de Investigaciones Científicas (IPE–CSIC), Instituto Pirenaico de Ecología, Zaragoza, Spain; RAQUEL NIETO, Environmental Physics Laboratory, Universidade de Vigo, Ourense, Spain; LUIS GIMENO, Environmental Physics Laboratory, Universidade de Vigo, Ourense, Spain; AGUSTIN EDUARDO GIMÉNEZ FUREST, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
A comparison of temporal variability of observed and model-based pan evaporation over Uruguay (1973?2014). |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
International Journal of Climatology, 2017 |
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DOI : |
10.1002/joc.5179 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 16 March 2017; Revised 8 May 2017; Accepted 23 May 2017 |
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Contenido : |
ABSTRACT.
This study analyses variability and trends of atmospheric evaporative demand (AED) across Uruguay in the past four decades. Changes were assessed using pan evaporation measurements from 10 meteorological stations and compared to PenPan model calculations, which is a physically based model that employs meteorological data as input. Results demonstrate a high agreement between the observed AED and those estimated from the PenPan model. Both observations and model estimations agree on a high interannual variability in AED, though being statistically insignificant (p>0.05) at seasonal and annual scales. Given that AED shows high sensitivity to changes in relative humidity and sunshine duration, as a surrogate of solar radiation, the lack of significant trends in the AED observations and estimations over Uruguay can be linked to the insignificant trend found for these climate variables for the period from 1973 to 2014. This is the first study that reports Pan evaporation trends for this part of the world, helping to infill gaps for mid-latitude Southern Hemisphere areas, which are
poorly represented in Pan evaporation trends.
© 2017 Royal Meteorological Society |
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Palabras claves : |
CLIMATE CHANGE; EVAPORATION; PENMAN-MONTEITH; REFERENCE EVAPOTRANSPIRATION; SOUTH AMERICA; URUGUAY. |
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Thesagro : |
CAMBIO CLIMÁTICO; CLIMA; EVAPOTRANSPIRACION; MEDIO AMBIENTE. |
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Asunto categoría : |
P40 Meteorología y climatología |
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Marc : |
LEADER 02352naa a2200385 a 4500
001 1057393
005 2017-07-21
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1002/joc.5179$2DOI
100 1 $aVICENTE-SERRANO, S.M.
245 $aA comparison of temporal variability of observed and model-based pan evaporation over Uruguay (1973?2014).$h[electronic resource]
260 $c2017
500 $aArticle history: Received 16 March 2017; Revised 8 May 2017; Accepted 23 May 2017
520 $aABSTRACT. This study analyses variability and trends of atmospheric evaporative demand (AED) across Uruguay in the past four decades. Changes were assessed using pan evaporation measurements from 10 meteorological stations and compared to PenPan model calculations, which is a physically based model that employs meteorological data as input. Results demonstrate a high agreement between the observed AED and those estimated from the PenPan model. Both observations and model estimations agree on a high interannual variability in AED, though being statistically insignificant (p>0.05) at seasonal and annual scales. Given that AED shows high sensitivity to changes in relative humidity and sunshine duration, as a surrogate of solar radiation, the lack of significant trends in the AED observations and estimations over Uruguay can be linked to the insignificant trend found for these climate variables for the period from 1973 to 2014. This is the first study that reports Pan evaporation trends for this part of the world, helping to infill gaps for mid-latitude Southern Hemisphere areas, which are poorly represented in Pan evaporation trends. © 2017 Royal Meteorological Society
650 $aCAMBIO CLIMÁTICO
650 $aCLIMA
650 $aEVAPOTRANSPIRACION
650 $aMEDIO AMBIENTE
653 $aCLIMATE CHANGE
653 $aEVAPORATION
653 $aPENMAN-MONTEITH
653 $aREFERENCE EVAPOTRANSPIRATION
653 $aSOUTH AMERICA
653 $aURUGUAY
700 1 $aBIDEGAIN, M.
700 1 $aTOMAS-BURGUERA, M.
700 1 $aDOMÍNGUEZ-CASTRO, F.
700 1 $aEL KENAWY, A.
700 1 $aMCVICAR, T.R.
700 1 $aAZORIN-MOLINA, C.
700 1 $aLÓPEZ-MORENO, J.I.
700 1 $aNIETO, R.
700 1 $aGIMENO, L.
700 1 $aGIMÉNEZ, A.
773 $tInternational Journal of Climatology, 2017
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Registro original : |
INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
18/08/2021 |
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Actualizado : |
02/09/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
CARAM, N.; CASALÁS, F.; SOCA, P.; ANFUSO, V.; GARCÍA-FAVRE, J.; WALLAU, M.; ZANONIANI, R.; CADENAZZI, M.; BOGGIANO, P. |
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Afiliación : |
Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la Republica, Paysandú, Uruguay.; Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la Republica, Paysandú, Uruguay; Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la Republica, Paysandú, Uruguay; VALENTIN ANFUSO ETCHEVERRY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la Republica, Paysandú, Uruguay; Agronomy Department, University of Florida, Gainesville.; Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la Republica, Paysandú, Uruguay.; Departamento de Biometría, Estadística y Computación, Facultad de Agronomía, Universidad de la República, Paysandú, Uruguay; Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la Republica, Paysandú, Uruguay. |
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Título : |
Configuration of daily grazing and searching of growing beef cattle in grassland: observational study. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Animal, 2021, volume 15, Issue 9, Article number 100336. Open Access. Doi: https://doi.org/10.1016/j.animal.2021.100336 |
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DOI : |
10.1016/j.animal.2021.100336 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 2 February 2021, Revised 29 June 2021, Accepted 2 July 2021. |
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Contenido : |
Abstract:
Many of the studies in Campos grasslands focus on management aspects such as the control of herbage allowance, and application of nutrients and/or overseeding with legumes. However, there is little literature on how the Campos grassland resource is utilised, especially regarding the grazing pattern and the relationship between pasture quantity and quality on daily grazing activities. The study of the ingestive behaviour in species-rich and heterogeneous native grasslands during daylight hours, and understanding how animals prioritise quality or quantity of intake in relation to pasture attributes, are important to comprehend the ingestive-digestive processes modulating the energy intake of animals and to achieve a better grazing management. Therefore, the objective was to describe and quantify the daily grazing behaviour of growing cattle grazing native pasture with different structures as a result of different management practices, and study the relationship of pasture attributes and intake through multivariate analysis. The study was carried out at the Faculty of Agronomy, Paysandú, Uruguay. Treatments were native grassland, overseeding with Trifolium pratense and Lotus tenuis + phosphorus, and native pasture + nitrogen-phosphorus. Grazing activities were discriminated into grazing, searching (defined when animals take 1?2 bites in one feeding station and then change to another feeding station and so on), ruminating and idling. The probability of time allocated to each activity was continuously measured during daylight hours (0700?1930) and was related to pasture structure and forage quality using regression tree models, while the bite rate was determined every 2 h. The diurnal pattern of growing cattle showed grazing and searching sessions, followed by ruminating and idling sessions. The length of sessions (as the probability of time allocated to each activity) varied throughout the day. The grazing probability was greater during afternoon than morning and midday (0.74 vs 0.45 vs 0.46, respectively), and it was associated with higher bite rate (34.2 bites/min). Regression tree models showed different grazing, searching and ruminating strategies according to pasture attributes. During the morning, animals modified grazing, searching, ruminating and idling strategies according to bite rate, crude protein in diet and herbage allowance. At midday, they only adjusted ruminating and idling, while during afternoon sessions, grazing activities were modified by pasture quantity attributes such as herbage mass and herbage allowance. By controlling the herbage allowance, herbage mass and pasture height, animals prioritise quality in the morning and quantity in the afternoon, integrating and modifying the grazing-searching and ruminating-idling pattern. MenosAbstract:
Many of the studies in Campos grasslands focus on management aspects such as the control of herbage allowance, and application of nutrients and/or overseeding with legumes. However, there is little literature on how the Campos grassland resource is utilised, especially regarding the grazing pattern and the relationship between pasture quantity and quality on daily grazing activities. The study of the ingestive behaviour in species-rich and heterogeneous native grasslands during daylight hours, and understanding how animals prioritise quality or quantity of intake in relation to pasture attributes, are important to comprehend the ingestive-digestive processes modulating the energy intake of animals and to achieve a better grazing management. Therefore, the objective was to describe and quantify the daily grazing behaviour of growing cattle grazing native pasture with different structures as a result of different management practices, and study the relationship of pasture attributes and intake through multivariate analysis. The study was carried out at the Faculty of Agronomy, Paysandú, Uruguay. Treatments were native grassland, overseeding with Trifolium pratense and Lotus tenuis + phosphorus, and native pasture + nitrogen-phosphorus. Grazing activities were discriminated into grazing, searching (defined when animals take 1?2 bites in one feeding station and then change to another feeding station and so on), ruminating and idling. The probability of time allocated t... Presentar Todo |
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Palabras claves : |
Cattle ingestive behaviour; Grazing management; Grazing pattern; Regression trees; Searching strategy. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16667/1/1-s2.0-S1751731121001798-main.pdf
https://www.sciencedirect.com/science/article/pii/S1751731121001798/pdfft?isDTMRedir=true&download=true
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Marc : |
LEADER 03831naa a2200301 a 4500
001 1062355
005 2022-09-02
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1016/j.animal.2021.100336$2DOI
100 1 $aCARAM, N.
245 $aConfiguration of daily grazing and searching of growing beef cattle in grassland$bobservational study.$h[electronic resource]
260 $c2021
500 $aArticle history: Received 2 February 2021, Revised 29 June 2021, Accepted 2 July 2021.
520 $aAbstract: Many of the studies in Campos grasslands focus on management aspects such as the control of herbage allowance, and application of nutrients and/or overseeding with legumes. However, there is little literature on how the Campos grassland resource is utilised, especially regarding the grazing pattern and the relationship between pasture quantity and quality on daily grazing activities. The study of the ingestive behaviour in species-rich and heterogeneous native grasslands during daylight hours, and understanding how animals prioritise quality or quantity of intake in relation to pasture attributes, are important to comprehend the ingestive-digestive processes modulating the energy intake of animals and to achieve a better grazing management. Therefore, the objective was to describe and quantify the daily grazing behaviour of growing cattle grazing native pasture with different structures as a result of different management practices, and study the relationship of pasture attributes and intake through multivariate analysis. The study was carried out at the Faculty of Agronomy, Paysandú, Uruguay. Treatments were native grassland, overseeding with Trifolium pratense and Lotus tenuis + phosphorus, and native pasture + nitrogen-phosphorus. Grazing activities were discriminated into grazing, searching (defined when animals take 1?2 bites in one feeding station and then change to another feeding station and so on), ruminating and idling. The probability of time allocated to each activity was continuously measured during daylight hours (0700?1930) and was related to pasture structure and forage quality using regression tree models, while the bite rate was determined every 2 h. The diurnal pattern of growing cattle showed grazing and searching sessions, followed by ruminating and idling sessions. The length of sessions (as the probability of time allocated to each activity) varied throughout the day. The grazing probability was greater during afternoon than morning and midday (0.74 vs 0.45 vs 0.46, respectively), and it was associated with higher bite rate (34.2 bites/min). Regression tree models showed different grazing, searching and ruminating strategies according to pasture attributes. During the morning, animals modified grazing, searching, ruminating and idling strategies according to bite rate, crude protein in diet and herbage allowance. At midday, they only adjusted ruminating and idling, while during afternoon sessions, grazing activities were modified by pasture quantity attributes such as herbage mass and herbage allowance. By controlling the herbage allowance, herbage mass and pasture height, animals prioritise quality in the morning and quantity in the afternoon, integrating and modifying the grazing-searching and ruminating-idling pattern.
653 $aCattle ingestive behaviour
653 $aGrazing management
653 $aGrazing pattern
653 $aRegression trees
653 $aSearching strategy
700 1 $aCASALÁS, F.
700 1 $aSOCA, P.
700 1 $aANFUSO, V.
700 1 $aGARCÍA-FAVRE, J.
700 1 $aWALLAU, M.
700 1 $aZANONIANI, R.
700 1 $aCADENAZZI, M.
700 1 $aBOGGIANO, P.
773 $tAnimal, 2021, volume 15, Issue 9, Article number 100336. Open Access. Doi: https://doi.org/10.1016/j.animal.2021.100336
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