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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó; INIA Treinta y Tres. |
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Fecha : |
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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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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INIA Tacuarembó (TBO) |
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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 actual : |
29/01/2024 |
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Actualizado : |
29/01/2024 |
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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 : |
MARÍN, M.F.; NAYA, H.; ESPASANDIN, A.C.; NAVAJAS, E.; DEVINCENZI, T.; CARRIQUIRY, M. |
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Afiliación : |
MARIA F. MARÍN, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Montevideo, Montevideo, 12900, Uruguay; HUGO NAYA, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Montevideo, Montevideo, 12900, Uruguay; Unidad de Bioinformática, Institut Pasteur de Montevideo, Montevideo, Montevideo, 11400, Uruguay; ANA C. ESPASANDIN, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Montevideo, Montevideo, 12900, Uruguay; ELLY ANA NAVAJAS VALENTINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; THAIS DEVINCENZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIANA CARRIQUIRY, Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Montevideo, Montevideo, 12900, Uruguay. |
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Título : |
Energy efficiency, reproductive performance, and metabolic parameters of grazing Hereford heifers. |
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Fecha de publicación : |
2024 |
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Fuente / Imprenta : |
Livestock Science, 2024, Volume 279, e105389. https://doi.org/10.1016/j.livsci.2023.105389 |
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ISSN : |
1871-1413 |
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DOI : |
10.1016/j.livsci.2023.105389 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 21 September 2023; Received in revised form 9 November 2023; Accepted 1 December 2023; Available online 2 December 2023. -- Correspondence: Marín, M.F.; Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Montevideo, Montevideo, Uruguay; email:mfedericamarin@gmail.com -- Funding: This research was partially funded by the Comisión Académica de Posgrados (Uruguay) through the graduate scholarship awarded to M.F. Marín, to the CSIC Reserch Program awarded to M.F. Marin and by the CSIC I + D Research Program (UdelaR) awarded to M. Carriquiry. -- |
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Contenido : |
ABSTRACT.- Feed and energy efficiency have been topics of extensive research in recent years, with residual feed intake (RFI) being the preferred index to determine feed efficiency in beef cattle. Nevertheless, the biggest downside of RFI is that its measurement requires accurately determining individual feed intake, which leads to the need to carry out RFI trials in confinement conditions. In this context, residual heat production (RHP), defined as the difference between observed and predicted heat production, presents an alternative to determine efficiency in grazing conditions as it is independent of feed intake. This work aimed to evaluate the repeatability of RHP and study its relationship with metabolic, endocrine, and reproductive variables. Seventy-four Hereford heifers were used, and at the beginning of the experimental period, heifers were 18 ± 0.7-month-old and weighed on average 278 ± 26 kg. Heat production (HP) was determined at the beginning (March to May; fall) and at the end (September to November; spring) of the experiment using the heart rate-O2 pulse technique to classify heifers according with the residual heat production (RHP). Efficient heifers showed lower HP (P < 0.01), ME (P < 0.01), and DM intake (P < 0.01) without differences in retained energy (RE; only in spring). During fall, average daily gain (ADG) was not included in the estimated HP model; therefore, although, as in RFI, RHP should be independent of BW and ADG, a trend for greater ADG and RE was found for efficient when compared with inefficient heifers. Decreased maintenance requirements (NEm and MEm) as well as higher partial efficiency of use of consumed ME (k) were estimated for more efficient heifers (low RHP; HH), while efficient heifers showed an earlier luteal phase and a shorter service-conception interval and calved earlier in the season, probably associated to an earlier development of fat tissue. Excluding glucose, no major differences were found in the plasma metabolites between groups. However, high-efficiency animals showed positive correlations with cholesterol and negative ones with NEFA plasma concentrations during fall. © 2023 MenosABSTRACT.- Feed and energy efficiency have been topics of extensive research in recent years, with residual feed intake (RFI) being the preferred index to determine feed efficiency in beef cattle. Nevertheless, the biggest downside of RFI is that its measurement requires accurately determining individual feed intake, which leads to the need to carry out RFI trials in confinement conditions. In this context, residual heat production (RHP), defined as the difference between observed and predicted heat production, presents an alternative to determine efficiency in grazing conditions as it is independent of feed intake. This work aimed to evaluate the repeatability of RHP and study its relationship with metabolic, endocrine, and reproductive variables. Seventy-four Hereford heifers were used, and at the beginning of the experimental period, heifers were 18 ± 0.7-month-old and weighed on average 278 ± 26 kg. Heat production (HP) was determined at the beginning (March to May; fall) and at the end (September to November; spring) of the experiment using the heart rate-O2 pulse technique to classify heifers according with the residual heat production (RHP). Efficient heifers showed lower HP (P < 0.01), ME (P < 0.01), and DM intake (P < 0.01) without differences in retained energy (RE; only in spring). During fall, average daily gain (ADG) was not included in the estimated HP model; therefore, although, as in RFI, RHP should be independent of BW and ADG, a trend for greater ADG and RE... Presentar Todo |
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Palabras claves : |
Beef cattle; Heat production; Reproduction; SISTEMA GANADERO EXTENSIVO - INIA. |
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Asunto categoría : |
L53 Fisiología Animal - Reproducción |
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Marc : |
LEADER 03594nam a2200253 a 4500
001 1064445
005 2024-01-29
008 2024 bl uuuu u00u1 u #d
022 $a1871-1413
024 7 $a10.1016/j.livsci.2023.105389$2DOI
100 1 $aMARÍN, M.F.
245 $aEnergy efficiency, reproductive performance, and metabolic parameters of grazing Hereford heifers.$h[electronic resource]
260 $aLivestock Science, 2024, Volume 279, e105389. https://doi.org/10.1016/j.livsci.2023.105389$c2023
500 $aArticle history: Received 21 September 2023; Received in revised form 9 November 2023; Accepted 1 December 2023; Available online 2 December 2023. -- Correspondence: Marín, M.F.; Departamento de Producción Animal y Pasturas, Facultad de Agronomía, Universidad de la República, Montevideo, Montevideo, Uruguay; email:mfedericamarin@gmail.com -- Funding: This research was partially funded by the Comisión Académica de Posgrados (Uruguay) through the graduate scholarship awarded to M.F. Marín, to the CSIC Reserch Program awarded to M.F. Marin and by the CSIC I + D Research Program (UdelaR) awarded to M. Carriquiry. --
520 $aABSTRACT.- Feed and energy efficiency have been topics of extensive research in recent years, with residual feed intake (RFI) being the preferred index to determine feed efficiency in beef cattle. Nevertheless, the biggest downside of RFI is that its measurement requires accurately determining individual feed intake, which leads to the need to carry out RFI trials in confinement conditions. In this context, residual heat production (RHP), defined as the difference between observed and predicted heat production, presents an alternative to determine efficiency in grazing conditions as it is independent of feed intake. This work aimed to evaluate the repeatability of RHP and study its relationship with metabolic, endocrine, and reproductive variables. Seventy-four Hereford heifers were used, and at the beginning of the experimental period, heifers were 18 ± 0.7-month-old and weighed on average 278 ± 26 kg. Heat production (HP) was determined at the beginning (March to May; fall) and at the end (September to November; spring) of the experiment using the heart rate-O2 pulse technique to classify heifers according with the residual heat production (RHP). Efficient heifers showed lower HP (P < 0.01), ME (P < 0.01), and DM intake (P < 0.01) without differences in retained energy (RE; only in spring). During fall, average daily gain (ADG) was not included in the estimated HP model; therefore, although, as in RFI, RHP should be independent of BW and ADG, a trend for greater ADG and RE was found for efficient when compared with inefficient heifers. Decreased maintenance requirements (NEm and MEm) as well as higher partial efficiency of use of consumed ME (k) were estimated for more efficient heifers (low RHP; HH), while efficient heifers showed an earlier luteal phase and a shorter service-conception interval and calved earlier in the season, probably associated to an earlier development of fat tissue. Excluding glucose, no major differences were found in the plasma metabolites between groups. However, high-efficiency animals showed positive correlations with cholesterol and negative ones with NEFA plasma concentrations during fall. © 2023
653 $aBeef cattle
653 $aHeat production
653 $aReproduction
653 $aSISTEMA GANADERO EXTENSIVO - INIA
700 1 $aNAYA, H.
700 1 $aESPASANDIN, A.C.
700 1 $aNAVAJAS, E.
700 1 $aDEVINCENZI, T.
700 1 $aCARRIQUIRY, M.
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