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| Registros recuperados : 299 | |
| 43. |  | BRITO, G.; FIOL, M. Manejo de la recría vacuna en areniscas ln: Bemhaja, M.; Pittaluga, O., eds. 30 años de investigación en suelos de areniscas, INIA Tacuarembó. Montevideo (Uruguay): INIA, 2006. p. 121-133 (INIA Serie Técnica ; 159)| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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| 46. | | BRITO, G.; LAGOMARSINO, X.; LUZARDO, S.; MONTOSSI, F.; LA MANNA, A. Suplementación infrecuente sobre campo natural de la recría bovina de sobreaño. In: BERRETTA, E.; MONTOSSI, F.; BRITO, G. (Ed.). Alternativas tecnológicas para los sistemas ganaderos del basalto. Montevideo, UY: INIA, 2014. p. 183-197. (Serie Técnica, 217)| Biblioteca(s): INIA La Estanzuela; INIA Tacuarembó; INIA Treinta y Tres. |
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| 47. | | BRITO, G.; LAGOMARSINO, X.; SAN JULIAN, R.; DEL CAMPO, M. Efecto de diferentes sistemas de producción en el crecimiento animal, la calidad de la canal y la carne en novillos de cruza británica. In: MONTOSSI, F. (Ed.). Invernada de precisión: Pasturas, Calidad de Carne, Genética, Gestión Empresarial e Impacto Ambiental (GIPROCAR II) Montevideo (UY): INIA, 2013. p. 137-153 (Serie Técnica; 211)| Biblioteca(s): INIA Tacuarembó; INIA Treinta y Tres. |
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| 48. | | BRITO, G.; LAGOMARSINO, X.; SAN JULIÁN, R.; LUZARDO, S.; DEL CAMPO, M.; MONTOSSI, F. Características de la canal y de la carne. ln: INIA LA ESTANZUELA. Jornada de Invernada Intensiva, julio, La Estanzuela, Colonia, Uruguay, 2010. Producción de carne desde una invernada de precisión. La Estanzuela, Colonia (Uruguay): INIA, 2010. p. 15-22 (INIA Serie Actividades de Difusión ; 609)| Biblioteca(s): INIA Tacuarembó. |
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| 50. | | BRITO, G.; LUZARDO, S.; LAGOMARSINO, X.; MONTOSSI, F.; LA MANNA, A.; FRUGONI, J.; LEVRATTO, J.; HERNANDEZ, S.; BOTTERO, S.; ZAMIT, W.; BENTANCURT, M.; COSTALES, J.; MEDEROS, A.; CARRACELAS, B. Frecuencia de suplementación invernal en campo natural: su aplicación en la recría de novillos sobreaño. ln: INIA Tacuarembó. Unidad Experimental Glencoe. Día de campo, setiembre 2011, Paysandú, Uruguay. Propuestas tecnológicas para el incremento de la productividad, la valorización y el ingreso económico para sistemas ganaderos de basalto. Tacuarembó (Uruguay): INIA, 2011. p. 39-40 (INIA Serie Actividades de Difusión ; 657)| Biblioteca(s): INIA Tacuarembó. |
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| 51. | | BRITO, G.; LUZARDO, S.; MONTOSSI, F.; SAN JULIAN, R.; CUADRO, R.; RISSO, D. Engorde de novillos Hereford mediante diferentes asignaciones de forraje y niveles de suplementación: su efecto en la calidad de la canal y la carne. In: BERRETTA, E.; MONTOSSI, F.; BRITO, G. (Ed.). Alternativas tecnológicas para los sistemas ganaderos del basalto. Montevideo, UY: INIA, 2014. 155-167 (Serie Técnica; 217)| Biblioteca(s): INIA Tacuarembó; INIA Treinta y Tres. |
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| 52. | | BRITO, G.; LUZARDO, S.; MONTOSSI, F.; SAN JULIÁN, R.; SILVEIRA, C.; DEL CAMPO, M.; LAGOMARSINO, X. Diferenciación de las carnes bovinas y ovinas del uruguay a partir de sus propiedades nutricionales y la conservación del producto. ln: INIA TACUAREMBÓ. INSTITUTO NACIONAL DE CARNES. Calidad de carnes. SEMINARIO DE ACTUALIZACIÓN TÉCNICA, 20-21 de setiembre, Tacuarembó, 2010. Montevideo (Uruguay): INIA, 2010.| Biblioteca(s): INIA Tacuarembó. |
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| 53. | | BRITO, G.; MENDOZA, A.; CLARAMUNT, M.; KARLEN, M.; KELLY, G.; MAGALLANES, L.; RAMÍREZ, S.; ZUNINI, A.; REPETTO, J.; CAJARVILLE, C. Effect of carbohydrate source on rumen fuid pH and in vitro gas production (GP) in heifers fed pasture silage. Journal of Animal Science v. 87, E-Suppl. 2; Journal of Dairy Science, v. 92, E-Suppl. 1, p. 152, 2009. Joint Annual Meeting . Montréal, Québec ,Canadá: ADSA, ASAS, CSAS. 2009.| Biblioteca(s): INIA La Estanzuela. |
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| 55. | | BRITO, G.; PIGURINA, G. Condición corporal en el manejo del rodeo de cría. ln: INIA TACUAREMBÓ; UTU-ESCUELA AGRARIA "LA CAROLINA". JORNADA, 8 de noviembre, Escuela Agraria "La Carolina", 1995. Pasturas y bovinos para carne en Cristalino. Tacuarembó (Uruguay): INIA, 1995. p. 21-34 (INIA Serie Actividades de Difusión ; 80) INIA Tacuarembó; UTU. Escuela Agraria La Carolina| Biblioteca(s): INIA Tacuarembó. |
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| 56. | | BRITO, G.; PIGURINA, G. Manejo nutricional de la vaca de cría. ln: INIA TACUAREMBÓ. UNIDAD EXPERIMENTAL LA MAGNOLIA. Jornada, 21 de agosto, Tacuarembó, 1996. Sistema ganadero La Magnolia. Tacuarembó, Uruguay: INIA, 1996. p. 26-35 (INIA Serie Actividades de Difusión ; 105)| Biblioteca(s): INIA Tacuarembó. |
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| 57. | | BRITO, G.; PIGURINA, G. Recría: terneras y vaquillonas. ln: INIA TACUAREMBÓ. UNIDAD EXPERIMENTAL LA MAGNOLIA. Jornada, 21 de agosto, Tacuarembó, 1996. Sistema ganadero La Magnolia. Tacuarembó, Uruguay: INIA, 1996. p. 36-38 (INIA Serie Actividades de Difusión ; 105)| Biblioteca(s): INIA Tacuarembó. |
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| Registros recuperados : 299 | |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
29/04/2015 |
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Actualizado : |
16/09/2016 |
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Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
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Autor : |
DO CARMO, M.; CARDOZO, G.; SOCA, P.M. |
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Afiliación : |
MARTIN DO CARMO CORUJO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GERONIMO AGUSTIN CARDOZO CABANELAS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PABLO M. SOCA. |
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Título : |
Measurement of campos rangelands herbage mass by simple methods. [Resumen]. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
ANNUAL MEETING OF THE SOCIETY FOR RANGE MANAGEMENT, SRM, 68., Sacramento, USA, 2015. |
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Idioma : |
Inglés |
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Contenido : |
Accurate and precise estimation of herbage mass is essential for livestock management, because herbage allowance depends on it estimation. Difficulties in estimation arise because of great variability in herbage mass in grassland and rangeland situations. Measuring yield directly by cutting is costly and destructive; but herbage height is highly correlated with herbage mass, thus could be a substitute of the cutting. Based on measurement of herbage mass in a large experiment (EEBR) and in four farms across Uruguay (MICN), we analyzed the relationship between herbage height and dry weight of the quadrat in kg/ha. Analysis was performed
with PROC MIXED and PROC CORR of SAS. On the other hand, the sample size to be taken in each paddock is of great importance and was estimated from the data population described above by resampling and estimating the coefficient of variation (CV) between means. A CV of 10% was defined as the limit to consider the estimation precise enough. The general relationship was y = 224 (±36) + x * 339 (±4), R2 = 0.84. Sample size to maintain the average with a CV error below 10% varied with mean, because it change the variance, however as a general rule, with a sample size between 60 to 100 only one estimation from 198, was above 10% error of the mean. We conclude that estimations based on herbage height are accurate enough (R2 = 0.84) to estimate the herbage mass and a sample size from
60 to 100, give as confidence to estimate herbage mass with precision in paddocks from 5 to 190 ha. That methodology should be extended to Campos rangeland manager for decision making to control grazing intensity. MenosAccurate and precise estimation of herbage mass is essential for livestock management, because herbage allowance depends on it estimation. Difficulties in estimation arise because of great variability in herbage mass in grassland and rangeland situations. Measuring yield directly by cutting is costly and destructive; but herbage height is highly correlated with herbage mass, thus could be a substitute of the cutting. Based on measurement of herbage mass in a large experiment (EEBR) and in four farms across Uruguay (MICN), we analyzed the relationship between herbage height and dry weight of the quadrat in kg/ha. Analysis was performed
with PROC MIXED and PROC CORR of SAS. On the other hand, the sample size to be taken in each paddock is of great importance and was estimated from the data population described above by resampling and estimating the coefficient of variation (CV) between means. A CV of 10% was defined as the limit to consider the estimation precise enough. The general relationship was y = 224 (±36) + x * 339 (±4), R2 = 0.84. Sample size to maintain the average with a CV error below 10% varied with mean, because it change the variance, however as a general rule, with a sample size between 60 to 100 only one estimation from 198, was above 10% error of the mean. We conclude that estimations based on herbage height are accurate enough (R2 = 0.84) to estimate the herbage mass and a sample size from
60 to 100, give as confidence to estimate herbage mass with precisi... Presentar Todo |
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Thesagro : |
FORRAJES; PASTURAS. |
|
Asunto categoría : |
A50 Investigación agraria |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/4400/1/DO-CARMO-2015-AINFO.pdf
http://www.rangelands.org/events/
|
|
Marc : |
LEADER 02135nam a2200157 a 4500
001 1052580
005 2016-09-16
008 2015 bl uuuu u01u1 u #d
100 1 $aDO CARMO, M.
245 $aMeasurement of campos rangelands herbage mass by simple methods. [Resumen].$h[electronic resource]
260 $aANNUAL MEETING OF THE SOCIETY FOR RANGE MANAGEMENT, SRM, 68., Sacramento, USA$c2015
520 $aAccurate and precise estimation of herbage mass is essential for livestock management, because herbage allowance depends on it estimation. Difficulties in estimation arise because of great variability in herbage mass in grassland and rangeland situations. Measuring yield directly by cutting is costly and destructive; but herbage height is highly correlated with herbage mass, thus could be a substitute of the cutting. Based on measurement of herbage mass in a large experiment (EEBR) and in four farms across Uruguay (MICN), we analyzed the relationship between herbage height and dry weight of the quadrat in kg/ha. Analysis was performed with PROC MIXED and PROC CORR of SAS. On the other hand, the sample size to be taken in each paddock is of great importance and was estimated from the data population described above by resampling and estimating the coefficient of variation (CV) between means. A CV of 10% was defined as the limit to consider the estimation precise enough. The general relationship was y = 224 (±36) + x * 339 (±4), R2 = 0.84. Sample size to maintain the average with a CV error below 10% varied with mean, because it change the variance, however as a general rule, with a sample size between 60 to 100 only one estimation from 198, was above 10% error of the mean. We conclude that estimations based on herbage height are accurate enough (R2 = 0.84) to estimate the herbage mass and a sample size from 60 to 100, give as confidence to estimate herbage mass with precision in paddocks from 5 to 190 ha. That methodology should be extended to Campos rangeland manager for decision making to control grazing intensity.
650 $aFORRAJES
650 $aPASTURAS
700 1 $aCARDOZO, G.
700 1 $aSOCA, P.M.
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