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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
18/08/2021 |
Actualizado : |
02/09/2022 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
CARAM, N.; CASALÁS, F.; SOCA, P.; ANFUSO, V.; GARCÍA-FAVRE, J.; WALLAU, M.; ZANONIANI, R.; CADENAZZI, M.; BOGGIANO, P. |
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. |
Título : |
Configuration of daily grazing and searching of growing beef cattle in grassland: observational study. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
Animal, 2021, volume 15, Issue 9, Article number 100336. Open Access. Doi: https://doi.org/10.1016/j.animal.2021.100336 |
DOI : |
10.1016/j.animal.2021.100336 |
Idioma : |
Inglés |
Notas : |
Article history: Received 2 February 2021, Revised 29 June 2021, Accepted 2 July 2021. |
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 |
Palabras claves : |
Cattle ingestive behaviour; Grazing management; Grazing pattern; Regression trees; Searching strategy. |
Asunto categoría : |
-- |
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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Registro original : |
INIA La Estanzuela (LE) |
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha actual : |
21/02/2014 |
Actualizado : |
09/09/2020 |
Autor : |
SILVEIRA, L.; ALONSO, J.; MARTÍNEZ, L. |
Afiliación : |
L. SILVEIRA, Universidad de la República (UdelaR)/ Facultad de Ingeniería; J. ALONSO, Universidad de la República (UdelaR)/ Facultad de Agronomía; L. MARTÍNEZ. |
Título : |
Efecto de las plantaciones forestales sobre el recurso agua en el Uruguay. (The effects of afforestation on Uruguay´s water resources). |
Fecha de publicación : |
2006 |
Fuente / Imprenta : |
Agrociencia, 2006, v. 10, no. 2, p. 75-93. |
ISSN : |
1510-0839 |
Idioma : |
Español |
Notas : |
Article history: Recibido: 06/03/06; Aceptado:25/10/06. |
Contenido : |
El desarrollo de la forestación industrial en el Uruguay, sustituyendo tierras de pastoreo para uso ganadero por plantaciones de Eucalyptus y Pinus, ha causado preocupación respecto a sus efectos sobre los recursos naturales, particularmente aguas y suelos. En ese contexto se emprenden estudios de investigación con el propósito de obtener indicadores de manejo forestal sustentable. Este trabajo presenta los avances en el conocimiento de los efectos de la forestación sobre el recurso hídrico en el Uruguay, en base a los resultados obtenidos hasta el presente en proyectos de investigación de la Red Temática de Ingeniería Agrícola de la Universidad de la República. Se describen los estudios realizados en una macrocuenca de 2.097 km2, con una superficie forestada de 540 km2 y en dos microcuencas experimentales, la primera forestada con Eucalyptus y la testigo con tapiz herbáceo para uso ganadero, ubicadas en la misma región, bajo condiciones hidrológicas similares. Los resultados disponibles permiten cuantificar tendencias en cuanto al: 1) efecto de las plantaciones sobre hidrogramas de tormentas (volúmenes escurridos y caudales máximos); 2) efecto de las plantaciones de Eucalyptus y Pinus sobre la escorrentía en macrocuencas, distinguiendo entre comportamiento anual y estacional, en el período preforestación (1975-1993), y el período posforestación (1994-2002); 3) precipitación directa y fustal, dos de las tres componentes en que se distribuye la lluvia en una plantación forestal; 4) relación entre humedad del suelo y capacidad de campo. // The development of industrial afforestation in Uruguay leaded to the substitution of natural grasslands mainly used for cattle grazing by Eucalyptus and Pinus plantations. This land use modification caused concern regarding its effects on the country?s natural resources, particularly water and soils. Therefore, research studies were undertaken in order to find hydro-environmental indicators of sustainable forest management. This paper shows the progress and current state of knowledge regarding the effects of afforestation on Uruguay?s water resources, based on investigations carried out by the University Net on Agricultural Engineering. The paper describes studies in a macro-basin of 2.097 km2, with a forestry surface of about 540 km2 and two experimental micro-basins with different land cover, located in the same region, under similar hydrological conditions.
Available results allows to quantify trends related to: 1) the effects on hydrographs (runoff volumes and maximum peaks); 2) the effect of the Eucalyptus and Pinus plantations on the macro-basin?s runoff, distinguishing between annual and seasonal behavior, for the period before afforestation (1975-1993), where the cattle use
prevailed, and the period after afforestation (1994-2002); 3) the amount of direct rainfall and stemflow, two of the three components of rainfall redistribution in forests; 4) the relationship between soil humidity and field capacity. MenosEl desarrollo de la forestación industrial en el Uruguay, sustituyendo tierras de pastoreo para uso ganadero por plantaciones de Eucalyptus y Pinus, ha causado preocupación respecto a sus efectos sobre los recursos naturales, particularmente aguas y suelos. En ese contexto se emprenden estudios de investigación con el propósito de obtener indicadores de manejo forestal sustentable. Este trabajo presenta los avances en el conocimiento de los efectos de la forestación sobre el recurso hídrico en el Uruguay, en base a los resultados obtenidos hasta el presente en proyectos de investigación de la Red Temática de Ingeniería Agrícola de la Universidad de la República. Se describen los estudios realizados en una macrocuenca de 2.097 km2, con una superficie forestada de 540 km2 y en dos microcuencas experimentales, la primera forestada con Eucalyptus y la testigo con tapiz herbáceo para uso ganadero, ubicadas en la misma región, bajo condiciones hidrológicas similares. Los resultados disponibles permiten cuantificar tendencias en cuanto al: 1) efecto de las plantaciones sobre hidrogramas de tormentas (volúmenes escurridos y caudales máximos); 2) efecto de las plantaciones de Eucalyptus y Pinus sobre la escorrentía en macrocuencas, distinguiendo entre comportamiento anual y estacional, en el período preforestación (1975-1993), y el período posforestación (1994-2002); 3) precipitación directa y fustal, dos de las tres componentes en que se distribuye la lluvia en una plantación forest... Presentar Todo |
Palabras claves : |
DESARROLLO TERRITORIAL; ESCORRENTÍA; GRASSLANDS; RUNOFF; SECTOR FORESTAL-MADERERO; SUSTAINABLE MANAGEMENT; SUSTENTABILIDAD; TAPIZ HERBÁCEO; URUGUAY. |
Thesagro : |
EUCALYPTUS; FORESTACIÓN; PINUS. |
Asunto categoría : |
K10 Producción forestal |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/7321/1/Agrociencia.-2006-Vol.-X-N-2-pag.-75-93.pdf
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Marc : |
LEADER 03943naa a2200313 a 4500 001 1027863 005 2020-09-09 008 2006 bl uuuu u00u1 u #d 022 $a1510-0839 100 1 $aSILVEIRA, L. 245 $aEfecto de las plantaciones forestales sobre el recurso agua en el Uruguay. (The effects of afforestation on Uruguay´s water resources). 260 $c2006 500 $aArticle history: Recibido: 06/03/06; Aceptado:25/10/06. 520 $aEl desarrollo de la forestación industrial en el Uruguay, sustituyendo tierras de pastoreo para uso ganadero por plantaciones de Eucalyptus y Pinus, ha causado preocupación respecto a sus efectos sobre los recursos naturales, particularmente aguas y suelos. En ese contexto se emprenden estudios de investigación con el propósito de obtener indicadores de manejo forestal sustentable. Este trabajo presenta los avances en el conocimiento de los efectos de la forestación sobre el recurso hídrico en el Uruguay, en base a los resultados obtenidos hasta el presente en proyectos de investigación de la Red Temática de Ingeniería Agrícola de la Universidad de la República. Se describen los estudios realizados en una macrocuenca de 2.097 km2, con una superficie forestada de 540 km2 y en dos microcuencas experimentales, la primera forestada con Eucalyptus y la testigo con tapiz herbáceo para uso ganadero, ubicadas en la misma región, bajo condiciones hidrológicas similares. Los resultados disponibles permiten cuantificar tendencias en cuanto al: 1) efecto de las plantaciones sobre hidrogramas de tormentas (volúmenes escurridos y caudales máximos); 2) efecto de las plantaciones de Eucalyptus y Pinus sobre la escorrentía en macrocuencas, distinguiendo entre comportamiento anual y estacional, en el período preforestación (1975-1993), y el período posforestación (1994-2002); 3) precipitación directa y fustal, dos de las tres componentes en que se distribuye la lluvia en una plantación forestal; 4) relación entre humedad del suelo y capacidad de campo. // The development of industrial afforestation in Uruguay leaded to the substitution of natural grasslands mainly used for cattle grazing by Eucalyptus and Pinus plantations. This land use modification caused concern regarding its effects on the country?s natural resources, particularly water and soils. Therefore, research studies were undertaken in order to find hydro-environmental indicators of sustainable forest management. This paper shows the progress and current state of knowledge regarding the effects of afforestation on Uruguay?s water resources, based on investigations carried out by the University Net on Agricultural Engineering. The paper describes studies in a macro-basin of 2.097 km2, with a forestry surface of about 540 km2 and two experimental micro-basins with different land cover, located in the same region, under similar hydrological conditions. Available results allows to quantify trends related to: 1) the effects on hydrographs (runoff volumes and maximum peaks); 2) the effect of the Eucalyptus and Pinus plantations on the macro-basin?s runoff, distinguishing between annual and seasonal behavior, for the period before afforestation (1975-1993), where the cattle use prevailed, and the period after afforestation (1994-2002); 3) the amount of direct rainfall and stemflow, two of the three components of rainfall redistribution in forests; 4) the relationship between soil humidity and field capacity. 650 $aEUCALYPTUS 650 $aFORESTACIÓN 650 $aPINUS 653 $aDESARROLLO TERRITORIAL 653 $aESCORRENTÍA 653 $aGRASSLANDS 653 $aRUNOFF 653 $aSECTOR FORESTAL-MADERERO 653 $aSUSTAINABLE MANAGEMENT 653 $aSUSTENTABILIDAD 653 $aTAPIZ HERBÁCEO 653 $aURUGUAY 700 1 $aALONSO, J. 700 1 $aMARTÍNEZ, L. 773 $tAgrociencia, 2006$gv. 10, no. 2, p. 75-93.
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