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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 : |
29/10/2019 |
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Actualizado : |
29/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
SAVIAN, J.V.; PRIANO, M.E.; NADIN, L.B.; TIERI, M.P.; MARINHO TRES SCHONS, R.; BASSO, C.; PONTES PRATES, A.; BAYER, C. |
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Afiliación : |
JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. Grazing Ecology Research Group, Federal University of Río Grande do Sul, Porto Alege, RS, Brasil.; MARÍA EUGENIA PRIANO, Research Center in Physics and Engineering of the Center of the Province of Buenos Aires; LAURA BEATRIZ NADIN, Veterinary Faculty, National University of the Centre of the Province of Buenos Aires, Tandil, Argentina; MARÍA PAZ TIERI, National Institute of Agricultural Technology, Rafaela, Santa Fé, Argentina; RADAEL MARINHO TRES SCHONS, Grazing Ecology Research Group, Federal University of Río Grande do Sul, Porto Alegre, Brasil.; CATARINE BASSO, Grazing Ecology Research Group, Federal University of Río Grande do Sul, RS, Brasil.; ARTHUR PONTES PRATES, Grazing Ecology Research Group, Federal University of Río Grande do Sul, RS, Brasil.; CIMÉLIO BAYER, Department of Soil Science, Federal University of Río Grande do Sul, Porto Alegre, RS, Brasil. |
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Título : |
Effect of sward management on the emissions of CH4 and N2O from faeces of sheep grazing Italian ryegrass pastures. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Small Ruminant Reseach, Sept. 2019, volume 178, Pages 123-128. |
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DOI : |
10.1016/j.smallrumres.2019.08.011 |
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Idioma : |
Inglés |
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Notas : |
History Article: Received 4 April 2019; Received in revised from 21 August 2019; Accepted 22 August 2019. Available online 24 August 2019. |
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Contenido : |
Rotatinuous stocking (RN) management is based on animal ingestive behaviour responses, where optimal preand post-grazing sward heights are defined to increase nutrient intake per unit of grazing time. We hypothesized that the optimal sward structure and consequently, a high herbage nutritive value in RN treatment results in a
greater faecal nitrogen (N) excretion by sheep and consequently, a greater faecal greenhouse gas (GHG) emissions compared with the traditional rotational stocking (RT) management, which is based on a maximum herbage accumulation and harvest. Therefore, the aim of this study was to evaluate the effect of two grazing
management strategies (RN and RT) on the amount of dry matter (DM) faecal excretion, faecal N excretion and faecal GHG (CH4 and N2O) emissions from growing sheep grazing Italian ryegrass pastures. In order to evaluate faecal production and N excretion per animal and per ha, a first experiment (1) was carried out: RT - pre and post-grazing sward heights of 25 and 5 cm, respectively and, RN - pre and post-grazing sward heights of 18 and 11 cm, respectively. A second experiment (2) was carried out to measure the CH4 and N2O fluxes from faeces, using the static chamber method. Daily DM faecal and N excretion per animal were higher (P<0.001) in RN compared with RT treatment. However, when considered daily DM faecal and N excretion per ha, results were lower (P<0.001) for the RN than the RT treatment. CH4 and N2O emissions from faeces were higher (P<0.001) in RN compared with RT treatment, both per animal and per hectare. In conclusion, our study showed that the RN grazing management, based on animal behaviour, resulted in a higher daily N excretion per animal and higher CH4 and N2O emissions from faeces of sheep grazing Italian ryegrass pastures. This study contributes to improve GHG national inventories for the subtropical Brazilian climatic conditions, where estimations from CH4 and N2O emissions factors for faeces from growing sheep grazing Italian ryegrass are markedly lower than the values reported by IPCC Default Tier 1. MenosRotatinuous stocking (RN) management is based on animal ingestive behaviour responses, where optimal preand post-grazing sward heights are defined to increase nutrient intake per unit of grazing time. We hypothesized that the optimal sward structure and consequently, a high herbage nutritive value in RN treatment results in a
greater faecal nitrogen (N) excretion by sheep and consequently, a greater faecal greenhouse gas (GHG) emissions compared with the traditional rotational stocking (RT) management, which is based on a maximum herbage accumulation and harvest. Therefore, the aim of this study was to evaluate the effect of two grazing
management strategies (RN and RT) on the amount of dry matter (DM) faecal excretion, faecal N excretion and faecal GHG (CH4 and N2O) emissions from growing sheep grazing Italian ryegrass pastures. In order to evaluate faecal production and N excretion per animal and per ha, a first experiment (1) was carried out: RT - pre and post-grazing sward heights of 25 and 5 cm, respectively and, RN - pre and post-grazing sward heights of 18 and 11 cm, respectively. A second experiment (2) was carried out to measure the CH4 and N2O fluxes from faeces, using the static chamber method. Daily DM faecal and N excretion per animal were higher (P<0.001) in RN compared with RT treatment. However, when considered daily DM faecal and N excretion per ha, results were lower (P<0.001) for the RN than the RT treatment. CH4 and N2O emissions from faeces were higher (... Presentar Todo |
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Palabras claves : |
FACTOR DE EMISIÓN FECAL; FAECAL EMISSION FACTOR; GREENHOUSE GASES; GROWING SHEEP; PASTURE MANAGEMENT; SWARD HEIGHT. |
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Thesagro : |
GASES DE EFECTO INVERNADERO; MANEJO DE PASTURAS. |
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Asunto categoría : |
L01 Ganadería |
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Marc : |
LEADER 03219naa a2200325 a 4500
001 1060357
005 2019-10-29
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1016/j.smallrumres.2019.08.011$2DOI
100 1 $aSAVIAN, J.V.
245 $aEffect of sward management on the emissions of CH4 and N2O from faeces of sheep grazing Italian ryegrass pastures.$h[electronic resource]
260 $c2019
500 $aHistory Article: Received 4 April 2019; Received in revised from 21 August 2019; Accepted 22 August 2019. Available online 24 August 2019.
520 $aRotatinuous stocking (RN) management is based on animal ingestive behaviour responses, where optimal preand post-grazing sward heights are defined to increase nutrient intake per unit of grazing time. We hypothesized that the optimal sward structure and consequently, a high herbage nutritive value in RN treatment results in a greater faecal nitrogen (N) excretion by sheep and consequently, a greater faecal greenhouse gas (GHG) emissions compared with the traditional rotational stocking (RT) management, which is based on a maximum herbage accumulation and harvest. Therefore, the aim of this study was to evaluate the effect of two grazing management strategies (RN and RT) on the amount of dry matter (DM) faecal excretion, faecal N excretion and faecal GHG (CH4 and N2O) emissions from growing sheep grazing Italian ryegrass pastures. In order to evaluate faecal production and N excretion per animal and per ha, a first experiment (1) was carried out: RT - pre and post-grazing sward heights of 25 and 5 cm, respectively and, RN - pre and post-grazing sward heights of 18 and 11 cm, respectively. A second experiment (2) was carried out to measure the CH4 and N2O fluxes from faeces, using the static chamber method. Daily DM faecal and N excretion per animal were higher (P<0.001) in RN compared with RT treatment. However, when considered daily DM faecal and N excretion per ha, results were lower (P<0.001) for the RN than the RT treatment. CH4 and N2O emissions from faeces were higher (P<0.001) in RN compared with RT treatment, both per animal and per hectare. In conclusion, our study showed that the RN grazing management, based on animal behaviour, resulted in a higher daily N excretion per animal and higher CH4 and N2O emissions from faeces of sheep grazing Italian ryegrass pastures. This study contributes to improve GHG national inventories for the subtropical Brazilian climatic conditions, where estimations from CH4 and N2O emissions factors for faeces from growing sheep grazing Italian ryegrass are markedly lower than the values reported by IPCC Default Tier 1.
650 $aGASES DE EFECTO INVERNADERO
650 $aMANEJO DE PASTURAS
653 $aFACTOR DE EMISIÓN FECAL
653 $aFAECAL EMISSION FACTOR
653 $aGREENHOUSE GASES
653 $aGROWING SHEEP
653 $aPASTURE MANAGEMENT
653 $aSWARD HEIGHT
700 1 $aPRIANO, M.E.
700 1 $aNADIN, L.B.
700 1 $aTIERI, M.P.
700 1 $aMARINHO TRES SCHONS, R.
700 1 $aBASSO, C.
700 1 $aPONTES PRATES, A.
700 1 $aBAYER, C.
773 $tSmall Ruminant Reseach, Sept. 2019, volume 178, Pages 123-128.
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Registro original : |
INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
15/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
A - 2 |
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Autor : |
ROEL, A.; MUTTERS, R.G.; ECKERT, J.W.; PLANT, R.E. |
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Afiliación : |
ALVARO ROEL DELLAZOPPA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Effect of low water temperature on rice yield in California. |
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Fecha de publicación : |
2005 |
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Fuente / Imprenta : |
Agronomy Journal, 2005, v. 97, p. 943-948. |
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DOI : |
10.2134/agronj2004.0129 |
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Idioma : |
Inglés |
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Notas : |
Article history: Published online May 13, 2005. |
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Contenido : |
Abstract:
Water temperature has increasingly become a matter of concern for California rice (Oryza sativa L.) growers due to a need for public water agencies to improve habitat for fish. Prudent management of water resources to balance the needs of environmental and agricultural interests requires the quantification of water temperature effects on rice productivity. Our objective was to evaluate two alternative thermal unit models for the effect of low water temperature on yield. One model was based on the total number of hours below a given threshold water temperature T-b (abbreviated TNHB T-b) and the other was based on the concept of inverse degree days (i.e., degree days below a given threshold water temperature) (abbreviated IDD). We tested these models at a range of values of Tb between 10 and 25 degrees C on data from two commercial fields during 2 yr. Results showed that the effect of low water temperature may be much greater than would be apparent from the visual appearance of the rice plants. Values of IDD and TNHB Tb were very highly correlated for 4 of the 4-yr field combinations. A logistic curve model based on TNHB 20 degrees C provided the best fit to the aggregated data. |
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Thesagro : |
ARROZ; RENDIMIENTO DEL CULTIVO; TEMPERATURA DEL AGUA. |
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Asunto categoría : |
F06 Riego |
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Marc : |
LEADER 01822naa a2200217 a 4500
001 1032796
005 2019-10-15
008 2005 bl uuuu u00u1 u #d
024 7 $a10.2134/agronj2004.0129$2DOI
100 1 $aROEL, A.
245 $aEffect of low water temperature on rice yield in California.
260 $c2005
500 $aArticle history: Published online May 13, 2005.
520 $aAbstract: Water temperature has increasingly become a matter of concern for California rice (Oryza sativa L.) growers due to a need for public water agencies to improve habitat for fish. Prudent management of water resources to balance the needs of environmental and agricultural interests requires the quantification of water temperature effects on rice productivity. Our objective was to evaluate two alternative thermal unit models for the effect of low water temperature on yield. One model was based on the total number of hours below a given threshold water temperature T-b (abbreviated TNHB T-b) and the other was based on the concept of inverse degree days (i.e., degree days below a given threshold water temperature) (abbreviated IDD). We tested these models at a range of values of Tb between 10 and 25 degrees C on data from two commercial fields during 2 yr. Results showed that the effect of low water temperature may be much greater than would be apparent from the visual appearance of the rice plants. Values of IDD and TNHB Tb were very highly correlated for 4 of the 4-yr field combinations. A logistic curve model based on TNHB 20 degrees C provided the best fit to the aggregated data.
650 $aARROZ
650 $aRENDIMIENTO DEL CULTIVO
650 $aTEMPERATURA DEL AGUA
700 1 $aMUTTERS, R.G.
700 1 $aECKERT, J.W.
700 1 $aPLANT, R.E.
773 $tAgronomy Journal, 2005$gv. 97, p. 943-948.
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