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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
21/02/2014 |
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Actualizado : |
06/06/2019 |
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Tipo de producción científica : |
Documentos |
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Autor : |
MENDEZ, J.; LAVECCHIA, A. |
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Afiliación : |
JULIO HECTOR MENDEZ LONGO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANDRES PASCUAL LAVECCHIA GONZALEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Implantación de arroz en siembras convencionales |
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Fecha de publicación : |
2010 |
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Fuente / Imprenta : |
ln: INIA Tacuarembó. Presentación resultados experimentales de arroz Zafra 2009/2010. Tacuarembó (Uruguay): INIA, 2010. |
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Páginas : |
p. 1-9 |
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Serie : |
(INIA Serie Actividades de Difusión ; 612) |
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Idioma : |
Español |
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Contenido : |
Nuestros cultivos de arroz se siembran tradicionalmente con densidades de siembra de 150 a 210 kg de semilla por hectárea. Esto implica una siembra de 600 a 800 semillas por metro cuadrado, llegando a recuperar menos del 50 % en forma de plántulas. Este hecho ha sido de preocupación desde siempre por parte de productores e investigadores, llevándose a cabo numerosos trabajos tratando de mejorar la performance de obtención de plántulas, así se han realizado numerosos ensayos con curasemillas. El establecimiento de plántulas en cultivos a campo, depende de características de las propias semillas y de
propiedades físicas y químicas de suelo donde se realiza la siembra. De parte de la semilla tenemos factores tales como viabilidad (germinación), vigor, sanidad, etc., que pueden condicionar el establecimiento de las plántulas. De parte del suelo podemos indicar, contenido de humedad, temperatura, densidad, Ph, etc. Otros factores como profundidad de siembra, drenaje, etc. pueden incidir en la implantación. El presente trabajo con el objetivo de mejorar la recuperación de la cantidad de semillas sembradas con respecto a las plántulas obtenidas, se realiza un ensayo de tratamientos de semillas y manejo de suelo post-siembra. |
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Palabras claves : |
RICE (ORYZA SATIVA L.). |
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Thesagro : |
ARROZ. |
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Asunto categoría : |
F01 Cultivo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/12781/1/sad-612p43-51.pdf
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Marc : |
LEADER 01819naa a2200181 a 4500
001 1020921
005 2019-06-06
008 2010 bl uuuu u00u1 u #d
100 1 $aMENDEZ, J.
245 $aImplantación de arroz en siembras convencionales
260 $c2010
300 $ap. 1-9
490 $a(INIA Serie Actividades de Difusión ; 612)
520 $aNuestros cultivos de arroz se siembran tradicionalmente con densidades de siembra de 150 a 210 kg de semilla por hectárea. Esto implica una siembra de 600 a 800 semillas por metro cuadrado, llegando a recuperar menos del 50 % en forma de plántulas. Este hecho ha sido de preocupación desde siempre por parte de productores e investigadores, llevándose a cabo numerosos trabajos tratando de mejorar la performance de obtención de plántulas, así se han realizado numerosos ensayos con curasemillas. El establecimiento de plántulas en cultivos a campo, depende de características de las propias semillas y de propiedades físicas y químicas de suelo donde se realiza la siembra. De parte de la semilla tenemos factores tales como viabilidad (germinación), vigor, sanidad, etc., que pueden condicionar el establecimiento de las plántulas. De parte del suelo podemos indicar, contenido de humedad, temperatura, densidad, Ph, etc. Otros factores como profundidad de siembra, drenaje, etc. pueden incidir en la implantación. El presente trabajo con el objetivo de mejorar la recuperación de la cantidad de semillas sembradas con respecto a las plántulas obtenidas, se realiza un ensayo de tratamientos de semillas y manejo de suelo post-siembra.
650 $aARROZ
653 $aRICE (ORYZA SATIVA L.)
700 1 $aLAVECCHIA, A.
773 $tln: INIA Tacuarembó. Presentación resultados experimentales de arroz Zafra 2009/2010. Tacuarembó (Uruguay): INIA, 2010.
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Registro original : |
INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
09/03/2022 |
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Actualizado : |
02/12/2022 |
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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 : |
SILVEIRA, F. A.; DE BARBIERI, I.; COBUCI, J. A.; MARQUES, C. B.; FERREIRA, G. F. DE; CIAPPESONI, G. |
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Afiliación : |
FERNANDO AMARILHO-SILVEIRA, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves 7712, RS 91509-900, Brazil; LUIS IGNACIO DE BARBIERI ETCHEBERRY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JAIME ARAUJO COBUCI, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves 7712, RS 91509-900, Brazil; CAMILA BALCONI MARQUES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GRACIALDA FERREIRA DE FERREIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS GABRIEL CIAPPESONI SCARONE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Residual feed intake for Australian Merino sheep estimated in less than 42 days of trial. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Livestock Science, 2022, Volume 258, Article 104889. OPEN ACCESS. doi: https://doi.org/10.1016/j.livsci.2022.104889 |
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ISSN : |
1871-1413 |
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DOI : |
10.1016/j.livsci.2022.104889 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 16 August 2021, Revised 18 February 2022, Accepted 28 February 2022, Available online 3 March 2022, Version of Record 8 March 2022. --
Corresponding author: Fernando Amarilho-Silveira, mailto: fernando@proagovina.com.br -- This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001. Thank the Instituto Nacional de Investigación Agropecuaria (INIA - UY) for the conduction of the field work in the data collection, which received funding from the European Union’s Horizon 2020 research and innovation program under the Grant Agreement n°772787 (Smarter) and from the Instituto Nacional de Investigación (INIA_CL_38: Rumiar). -- LICENSE: This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/bync-nd/4.0/). |
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Contenido : |
ABSTRACT.- The evaluation of sheep feed intake (FI) in feed efficiency tests is expensive. Decreasing the test period could be a resource-saving tool by reducing the cost of evaluating each animal and allowing to test a greater number of animals per year. For this reason, the objective of this research was to explore residual feed intake (RFI) models and to decreasing the test duration. Data was collected from 286 Australian Merino sheep of three performed trials, the test period consisted of 56 days (14 days of feed and facilities adaptation and 42 days of FI and average daily gain (ADG) evaluation). Two models were used to calculate RFI, Model 1 (based on Koch et al. (1963) linear model) and Model 2 (repeated measures, weekly model). Model 1 included ADG and FI estimates in a linear regression. The second model included weekly average FI as repeated measure and the weekly ADG. The increase in body weight during the test period was not perfectly linear, presenting a marked variance increase in two of the three tests while FI presented a tendency to increase throughout of the evaluation period, however presenting a high variance per day. In the 42-days tests, Pearson and Spearman correlations between models for ADG were of 0.89 and 0.87, respectively. The best correlations were detected for FI between 42 and 35-days models, presenting Pearson and Spearman correlations of 0.95 and 0.94 in the linear model, and 0.96 and 0.95 in the weekly model. When considering RFI, the correlations between linear and weekly 42-days models were from 0.93 to 0.92, respectively. The 35-days RFI length models (linear and weekly) presented a Pearson and Spearman correlations greater than 0.98 with the 42-days models. Therefore, the RFI models 35-days of duration allowed to decrease seven days of the FI test while maintaining accuracy and explaining 75.3% of the FI in the linear model, and 63.6% of the weekly model. Reducing seven days of testing would provide a greater data collection into a year of phenotypic evaluation. © 2022 The Authors. Published by Elsevier B.V. MenosABSTRACT.- The evaluation of sheep feed intake (FI) in feed efficiency tests is expensive. Decreasing the test period could be a resource-saving tool by reducing the cost of evaluating each animal and allowing to test a greater number of animals per year. For this reason, the objective of this research was to explore residual feed intake (RFI) models and to decreasing the test duration. Data was collected from 286 Australian Merino sheep of three performed trials, the test period consisted of 56 days (14 days of feed and facilities adaptation and 42 days of FI and average daily gain (ADG) evaluation). Two models were used to calculate RFI, Model 1 (based on Koch et al. (1963) linear model) and Model 2 (repeated measures, weekly model). Model 1 included ADG and FI estimates in a linear regression. The second model included weekly average FI as repeated measure and the weekly ADG. The increase in body weight during the test period was not perfectly linear, presenting a marked variance increase in two of the three tests while FI presented a tendency to increase throughout of the evaluation period, however presenting a high variance per day. In the 42-days tests, Pearson and Spearman correlations between models for ADG were of 0.89 and 0.87, respectively. The best correlations were detected for FI between 42 and 35-days models, presenting Pearson and Spearman correlations of 0.95 and 0.94 in the linear model, and 0.96 and 0.95 in the weekly model. When considering RFI, the corre... Presentar Todo |
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Palabras claves : |
Average daily gain; Feed efficiency; Genetic model; Repeated measures. |
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Asunto categoría : |
L10 Genética y mejoramiento animal |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16902/1/1-s2.0-S1871141322000695.pdf
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Marc : |
LEADER 03781naa a2200265 a 4500
001 1062809
005 2022-12-02
008 2022 bl uuuu u00u1 u #d
022 $a1871-1413
024 7 $a10.1016/j.livsci.2022.104889$2DOI
100 1 $aSILVEIRA, F. A.
245 $aResidual feed intake for Australian Merino sheep estimated in less than 42 days of trial.$h[electronic resource]
260 $c2022
500 $aArticle history: Received 16 August 2021, Revised 18 February 2022, Accepted 28 February 2022, Available online 3 March 2022, Version of Record 8 March 2022. -- Corresponding author: Fernando Amarilho-Silveira, mailto: fernando@proagovina.com.br -- This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001. Thank the Instituto Nacional de Investigación Agropecuaria (INIA - UY) for the conduction of the field work in the data collection, which received funding from the European Union’s Horizon 2020 research and innovation program under the Grant Agreement n°772787 (Smarter) and from the Instituto Nacional de Investigación (INIA_CL_38: Rumiar). -- LICENSE: This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/bync-nd/4.0/).
520 $aABSTRACT.- The evaluation of sheep feed intake (FI) in feed efficiency tests is expensive. Decreasing the test period could be a resource-saving tool by reducing the cost of evaluating each animal and allowing to test a greater number of animals per year. For this reason, the objective of this research was to explore residual feed intake (RFI) models and to decreasing the test duration. Data was collected from 286 Australian Merino sheep of three performed trials, the test period consisted of 56 days (14 days of feed and facilities adaptation and 42 days of FI and average daily gain (ADG) evaluation). Two models were used to calculate RFI, Model 1 (based on Koch et al. (1963) linear model) and Model 2 (repeated measures, weekly model). Model 1 included ADG and FI estimates in a linear regression. The second model included weekly average FI as repeated measure and the weekly ADG. The increase in body weight during the test period was not perfectly linear, presenting a marked variance increase in two of the three tests while FI presented a tendency to increase throughout of the evaluation period, however presenting a high variance per day. In the 42-days tests, Pearson and Spearman correlations between models for ADG were of 0.89 and 0.87, respectively. The best correlations were detected for FI between 42 and 35-days models, presenting Pearson and Spearman correlations of 0.95 and 0.94 in the linear model, and 0.96 and 0.95 in the weekly model. When considering RFI, the correlations between linear and weekly 42-days models were from 0.93 to 0.92, respectively. The 35-days RFI length models (linear and weekly) presented a Pearson and Spearman correlations greater than 0.98 with the 42-days models. Therefore, the RFI models 35-days of duration allowed to decrease seven days of the FI test while maintaining accuracy and explaining 75.3% of the FI in the linear model, and 63.6% of the weekly model. Reducing seven days of testing would provide a greater data collection into a year of phenotypic evaluation. © 2022 The Authors. Published by Elsevier B.V.
653 $aAverage daily gain
653 $aFeed efficiency
653 $aGenetic model
653 $aRepeated measures
700 1 $aDE BARBIERI, I.
700 1 $aCOBUCI, J. A.
700 1 $aMARQUES, C. B.
700 1 $aFERREIRA, G. F. DE
700 1 $aCIAPPESONI, G.
773 $tLivestock Science, 2022, Volume 258, Article 104889. OPEN ACCESS. doi: https://doi.org/10.1016/j.livsci.2022.104889
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