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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
07/02/2023 |
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Actualizado : |
24/04/2023 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
DA CUNHA, L. L.; BREMM, C.; SAVIAN, J.V.; ZUBIETA, Á. S.; ROSSETTO, J.; CARVALHO, P. C. DE F. |
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Afiliación : |
LAIS LEAL DA CUNHA, LAIS LEAL, Grazing Ecology Research Group, Federal University of Rio Grande Do Sul, RS, Porto Alegre, Brazil; CAROLINA BREMM, State Foundation of Agricultural Research, Rua Gonçalves Dias, 570, Bairro Menino Deus, RS, Porto Alegre, Brazil; JEAN VICTOR SAVIAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ÁNGEL SANCHEZ ZUBIETA, Grazing Ecology Research Group, Federal University of Rio Grande Do Sul, RS, Porto Alegre, Brazil; JUSIANE ROSSETTO, Grazing Ecology Research Group, Federal University of Rio Grande Do Sul, RS, Porto Alegre, Brazil; PAULO CÉSAR DE FACCIO CARVALHO, Grazing Ecology Research Group, Federal University of Rio Grande Do Sul, RS, Porto Alegre, Brazil. |
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Título : |
Relevance of sward structure and forage nutrient contents in explaining methane emissions from grazing beef cattle and sheep. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Science of the Total Environment, 2023. Volume 869, Article number 161695. doi: https://doi.org/10.1016/j.scitotenv.2023.161695 |
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ISSN : |
0048-9697 |
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DOI : |
10.1016/j.scitotenv.2023.161695 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 18 March 2022; Received in revised form 30 December 2022; Accepted 15 January 2023; Available online 21 January 2023; To be published 15 April 2023. -- Corresponding author: da Cunha, L.L.; Grazing Ecology Research Group, Department of Forage Plants and Agrometeorology, Faculty of Agronomy, Federal University of Rio Grande Do Sul, Bento Gonçalves Ave., 7712, RS, Porto Alegre, Brazil; email:laiscvet@gmail.com -- Editor: Kuishuang Feng -- |
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Contenido : |
ABSTRACT.- Forage nutrient contents are an important factor explaining the dry matter intake (DMI), average daily gain (ADG), and methane emissions (CH4) of ruminants fed indoors. However, for grazing animals, the forage nutrient contents might be limited in explaining such response variables. We aimed to verify the explanatory power of forage nutrient contents and sward structure on daily intake, performance, and CH4 emissions by sheep and beef cattle grazing different grassland types in southern Brazil. We analyzed data from five grazing trials using sheep and beef cattle grazing on Italian ryegrass (Lolium multiflorum), mixed Italian ryegrass and black oat (Lolium multiflorum + Avena strigosa), pearl millet (Pennisetum americanum), and multispecies native grassland. We used mixed models, including the forage nutrient contents [crude protein (CP), neutral detergent fiber (NDF), and acid detergent fiber (ADF)], sward structure (sward height and herbage mass) and their interactions, as fixed effects and trial, season, methodologies, animal species, grassland type, and paddock, as random effects. The model for DMI (kg DM/LW0.75) had an adjusted coefficient of determination (R2adj) of 71.6 %, where 11.3, 23.1, and 37.2 % of the R2adj were explained by the forage nutrient contents, sward structure, and their interaction, respectively. The ADG (kg/LW0.75) model presented an R2adj of 74.2 %, with 12.5 % explained by forage nutrient contents, 29.3 % by sward structure, and 32.4 % by their interaction. The daily CH4 emission (g/LW0.75) model had a lower adjusted coefficient of determination (R2adj = 47.6 %), with 16.8 % explained by forage nutrient contents and 30.8 % explained by sward structure, but no effect of the interaction. Our results show that in grazing ecosystems, the forage nutrient contents explain a small fraction, and the greater explanatory power for DMI, ADG, and CH4 emissions models is related to sward structure descriptors, such as sward height and herbage mass. Moreover, the interaction between these variables explains most of the variation. In conclusion, forage nutrient contents and sward structure have different influences on DMI, ADG, and CH4 emissions by grazing ruminants. Because of its relevance to daily CH4 emissions, offering an optimal sward structure to grazing animals is a major climate-smart strategy to improve animal production and mitigate CH4 emissions in pastoral ecosystems. © 2023 Elsevier B.V. MenosABSTRACT.- Forage nutrient contents are an important factor explaining the dry matter intake (DMI), average daily gain (ADG), and methane emissions (CH4) of ruminants fed indoors. However, for grazing animals, the forage nutrient contents might be limited in explaining such response variables. We aimed to verify the explanatory power of forage nutrient contents and sward structure on daily intake, performance, and CH4 emissions by sheep and beef cattle grazing different grassland types in southern Brazil. We analyzed data from five grazing trials using sheep and beef cattle grazing on Italian ryegrass (Lolium multiflorum), mixed Italian ryegrass and black oat (Lolium multiflorum + Avena strigosa), pearl millet (Pennisetum americanum), and multispecies native grassland. We used mixed models, including the forage nutrient contents [crude protein (CP), neutral detergent fiber (NDF), and acid detergent fiber (ADF)], sward structure (sward height and herbage mass) and their interactions, as fixed effects and trial, season, methodologies, animal species, grassland type, and paddock, as random effects. The model for DMI (kg DM/LW0.75) had an adjusted coefficient of determination (R2adj) of 71.6 %, where 11.3, 23.1, and 37.2 % of the R2adj were explained by the forage nutrient contents, sward structure, and their interaction, respectively. The ADG (kg/LW0.75) model presented an R2adj of 74.2 %, with 12.5 % explained by forage nutrient contents, 29.3 % by sward structure, and 32.4 % ... Presentar Todo |
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Palabras claves : |
Forage chemical composition; Grasslands; Livestock; Pastoral ecosystems; Sward height. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 03850naa a2200277 a 4500
001 1063954
005 2023-04-24
008 2023 bl uuuu u00u1 u #d
022 $a0048-9697
024 7 $a10.1016/j.scitotenv.2023.161695$2DOI
100 1 $aDA CUNHA, L. L.
245 $aRelevance of sward structure and forage nutrient contents in explaining methane emissions from grazing beef cattle and sheep.$h[electronic resource]
260 $c2023
500 $aArticle history: Received 18 March 2022; Received in revised form 30 December 2022; Accepted 15 January 2023; Available online 21 January 2023; To be published 15 April 2023. -- Corresponding author: da Cunha, L.L.; Grazing Ecology Research Group, Department of Forage Plants and Agrometeorology, Faculty of Agronomy, Federal University of Rio Grande Do Sul, Bento Gonçalves Ave., 7712, RS, Porto Alegre, Brazil; email:laiscvet@gmail.com -- Editor: Kuishuang Feng --
520 $aABSTRACT.- Forage nutrient contents are an important factor explaining the dry matter intake (DMI), average daily gain (ADG), and methane emissions (CH4) of ruminants fed indoors. However, for grazing animals, the forage nutrient contents might be limited in explaining such response variables. We aimed to verify the explanatory power of forage nutrient contents and sward structure on daily intake, performance, and CH4 emissions by sheep and beef cattle grazing different grassland types in southern Brazil. We analyzed data from five grazing trials using sheep and beef cattle grazing on Italian ryegrass (Lolium multiflorum), mixed Italian ryegrass and black oat (Lolium multiflorum + Avena strigosa), pearl millet (Pennisetum americanum), and multispecies native grassland. We used mixed models, including the forage nutrient contents [crude protein (CP), neutral detergent fiber (NDF), and acid detergent fiber (ADF)], sward structure (sward height and herbage mass) and their interactions, as fixed effects and trial, season, methodologies, animal species, grassland type, and paddock, as random effects. The model for DMI (kg DM/LW0.75) had an adjusted coefficient of determination (R2adj) of 71.6 %, where 11.3, 23.1, and 37.2 % of the R2adj were explained by the forage nutrient contents, sward structure, and their interaction, respectively. The ADG (kg/LW0.75) model presented an R2adj of 74.2 %, with 12.5 % explained by forage nutrient contents, 29.3 % by sward structure, and 32.4 % by their interaction. The daily CH4 emission (g/LW0.75) model had a lower adjusted coefficient of determination (R2adj = 47.6 %), with 16.8 % explained by forage nutrient contents and 30.8 % explained by sward structure, but no effect of the interaction. Our results show that in grazing ecosystems, the forage nutrient contents explain a small fraction, and the greater explanatory power for DMI, ADG, and CH4 emissions models is related to sward structure descriptors, such as sward height and herbage mass. Moreover, the interaction between these variables explains most of the variation. In conclusion, forage nutrient contents and sward structure have different influences on DMI, ADG, and CH4 emissions by grazing ruminants. Because of its relevance to daily CH4 emissions, offering an optimal sward structure to grazing animals is a major climate-smart strategy to improve animal production and mitigate CH4 emissions in pastoral ecosystems. © 2023 Elsevier B.V.
653 $aForage chemical composition
653 $aGrasslands
653 $aLivestock
653 $aPastoral ecosystems
653 $aSward height
700 1 $aBREMM, C.
700 1 $aSAVIAN, J.V.
700 1 $aZUBIETA, Á. S.
700 1 $aROSSETTO, J.
700 1 $aCARVALHO, P. C. DE F.
773 $tScience of the Total Environment, 2023. Volume 869, Article number 161695. doi: https://doi.org/10.1016/j.scitotenv.2023.161695
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó; INIA Treinta y Tres. |
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Fecha actual : |
10/06/2019 |
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Actualizado : |
06/07/2020 |
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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 : |
CARRACELAS, G.; HORNBUCKLE, J.; ROSAS, J.E.; ROEL, A. |
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Afiliación : |
JULIO GONZALO CARRACELAS GARRIDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. Deakin University, Faculty of Science Engineering & Built Environment, Centre for Regional and Rural Futures, Griffith, New South Wales, Australia.; J. HORNBUCKLE, Deakin University, Faculty of Science Engineering & Built Environment, Centre for Regional and Rural Futures, Griffith, New South Wales, Australia.; JUAN EDUARDO ROSAS CAISSIOLS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALVARO ROEL DELLAZOPPA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Irrigation management strategies to increase water productivity in Oryza sativa (rice) in Uruguay. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Agricultural Water Management, Volume 222, 1 August 2019, Pages 161-172. DOI: https://doi.org/10.1016/j.agwat.2019.05.049 |
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DOI : |
10.1016/j.agwat.2019.05.049 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 29 March 2019; Received in revised form 29 May 2019; Accepted 30 May 2019. |
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Contenido : |
Traditional rice irrigation systems in Uruguay are fully irrigated and early continuously flooded irrigation accounts for a high volume of water used. The purpose of this study was to determine irrigation techniques that increase irrigation water productivity (WPi) allowing a reduction in water input without negatively affecting grain yield in Uruguay. Ten experiments were conducted over a six-year period from 2009 to 2015, in three experimental units located among the major rice growing regions. Treatments included: early continuous flooding (C), alternate wetting and drying (AWD), intermittent flooding until panicle initiation (IP) and intermittent flooding during all crop growth period (I). All treatments were planted on dry soil. In treatment C flooding started 15?20 days after emergence and a water layer of 10 cm above the soil surface was maintained throughout all the crop cycle. In treatments IP and I, the water level alternated between 10 cm and 0 cm and was re-established when the soil was still saturated. The AWD treatment allowed the soil to dry periodically (water
depletion of 50% of soil available water) until panicle initiation. IP and I over three seasons led to significant savings in irrigation water inputs in the North and Central regions (averaged 35% or - 3986 m3 ha−1) in relation to C. In the East region, AWD allowed for a 29%(-2067m3 ha−1) water saving in relation to the control over four seasons but determined a significant yield loss of 1339 kg rice ha−1 (15% reduction) in relation to C. WPi was increased by 0.25 kg m−3 (23%) in IP and 0.68 kg m−3 (62%) in I, in relation to the control C. Whole grain percentage was significantly reduced with I in the North region only. Techniques that maintained the soil water at saturated conditions like intermittent flooding, allowed a reduction of water input with no significant effects
on grain yield, which led to a significant increase in WPi. MenosTraditional rice irrigation systems in Uruguay are fully irrigated and early continuously flooded irrigation accounts for a high volume of water used. The purpose of this study was to determine irrigation techniques that increase irrigation water productivity (WPi) allowing a reduction in water input without negatively affecting grain yield in Uruguay. Ten experiments were conducted over a six-year period from 2009 to 2015, in three experimental units located among the major rice growing regions. Treatments included: early continuous flooding (C), alternate wetting and drying (AWD), intermittent flooding until panicle initiation (IP) and intermittent flooding during all crop growth period (I). All treatments were planted on dry soil. In treatment C flooding started 15?20 days after emergence and a water layer of 10 cm above the soil surface was maintained throughout all the crop cycle. In treatments IP and I, the water level alternated between 10 cm and 0 cm and was re-established when the soil was still saturated. The AWD treatment allowed the soil to dry periodically (water
depletion of 50% of soil available water) until panicle initiation. IP and I over three seasons led to significant savings in irrigation water inputs in the North and Central regions (averaged 35% or - 3986 m3 ha−1) in relation to C. In the East region, AWD allowed for a 29%(-2067m3 ha−1) water saving in relation to the control over four seasons but determined a significant yield loss of 133... Presentar Todo |
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Palabras claves : |
ALTERNATE WETTING AND DRYING; INTERMITTENT; QUALITY; RICE (ORYZA SATIVA L.); WATER PRODUCTIVITY; YIELD. |
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Thesagro : |
ARROZ. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02901naa a2200265 a 4500
001 1059837
005 2020-07-06
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1016/j.agwat.2019.05.049$2DOI
100 1 $aCARRACELAS, G.
245 $aIrrigation management strategies to increase water productivity in Oryza sativa (rice) in Uruguay.$h[electronic resource]
260 $c2019
500 $aArticle history: Received 29 March 2019; Received in revised form 29 May 2019; Accepted 30 May 2019.
520 $aTraditional rice irrigation systems in Uruguay are fully irrigated and early continuously flooded irrigation accounts for a high volume of water used. The purpose of this study was to determine irrigation techniques that increase irrigation water productivity (WPi) allowing a reduction in water input without negatively affecting grain yield in Uruguay. Ten experiments were conducted over a six-year period from 2009 to 2015, in three experimental units located among the major rice growing regions. Treatments included: early continuous flooding (C), alternate wetting and drying (AWD), intermittent flooding until panicle initiation (IP) and intermittent flooding during all crop growth period (I). All treatments were planted on dry soil. In treatment C flooding started 15?20 days after emergence and a water layer of 10 cm above the soil surface was maintained throughout all the crop cycle. In treatments IP and I, the water level alternated between 10 cm and 0 cm and was re-established when the soil was still saturated. The AWD treatment allowed the soil to dry periodically (water depletion of 50% of soil available water) until panicle initiation. IP and I over three seasons led to significant savings in irrigation water inputs in the North and Central regions (averaged 35% or - 3986 m3 ha−1) in relation to C. In the East region, AWD allowed for a 29%(-2067m3 ha−1) water saving in relation to the control over four seasons but determined a significant yield loss of 1339 kg rice ha−1 (15% reduction) in relation to C. WPi was increased by 0.25 kg m−3 (23%) in IP and 0.68 kg m−3 (62%) in I, in relation to the control C. Whole grain percentage was significantly reduced with I in the North region only. Techniques that maintained the soil water at saturated conditions like intermittent flooding, allowed a reduction of water input with no significant effects on grain yield, which led to a significant increase in WPi.
650 $aARROZ
653 $aALTERNATE WETTING AND DRYING
653 $aINTERMITTENT
653 $aQUALITY
653 $aRICE (ORYZA SATIVA L.)
653 $aWATER PRODUCTIVITY
653 $aYIELD
700 1 $aHORNBUCKLE, J.
700 1 $aROSAS, J.E.
700 1 $aROEL, A.
773 $tAgricultural Water Management, Volume 222, 1 August 2019, Pages 161-172. DOI: https://doi.org/10.1016/j.agwat.2019.05.049
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