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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
29/04/2015 |
Actualizado : |
16/09/2016 |
Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
Autor : |
DO CARMO, M.; CARDOZO, G.; SOCA, P.M. |
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. |
Título : |
Measurement of campos rangelands herbage mass by simple methods. [Resumen]. |
Fecha de publicación : |
2015 |
Fuente / Imprenta : |
ANNUAL MEETING OF THE SOCIETY FOR RANGE MANAGEMENT, SRM, 68., Sacramento, USA, 2015. |
Idioma : |
Inglés |
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 |
Thesagro : |
FORRAJES; PASTURAS. |
Asunto categoría : |
A50 Investigación agraria |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/4400/1/DO-CARMO-2015-AINFO.pdf
http://www.rangelands.org/events/
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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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INIA Tacuarembó (TBO) |
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Registros recuperados : 26 | |
3. | | DO CARMO, M.; CARRIQUIRY, M.; SOCA, P. Effect of forage allowance on native pasture traits, stocking rate and beef cow body condition In: Michalk, D.L; Millar, G.D.; Badgery, W.B.; Broadfoot, K.M.; eds. International Grassland Congress, 22., 15-19 September, Sydney (AT), 2013. Proceedings. Revitalising grasslands to sustain our communitiesTipo: Trabajos en Congresos/Conferencias |
Biblioteca(s): INIA Tacuarembó. |
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5. | | DO CARMO, M.; SOCA, P.; CARDOZO, G. El manejo de la oferta de forraje mejora la productividad de los sistemas de cría vacuna en campos. In: UNIVERSIDAD DE LA REPÚBLICA (UDELAR). FACULTAD DE AGRONOMÍA. Resúmenes. Jornadas de Investigación, 8-9 nov., 2018, Montevideo, Uruguay. Montevideo; FAGRO, 2019. P. 31 Trabajo originalmente publicado en: Do Carmo, M.; Soca, P.; Cardozo, G. 2018. International Symposium on Nutrition of the Herbivores, 10th. The management of herbage allowance improves beef productivity in Campos grazing sistems....Tipo: Abstracts/Resúmenes |
Biblioteca(s): INIA Treinta y Tres. |
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6. | | OLMOS, F.; DO CARMO, M.; SOSA, M.; CAL, V. Distribution of Coelorachis selloana (Hack) in grasslands of Uruguay In: Feldman, S.R.; Oliva, G.E.; Sacido, M.B. (eds.). International Rangeland Congress : diverse rangelands for sustainable society, (9º, 2011, Rosario, Argentina). INTA. p. 77Tipo: Trabajos en Congresos/Conferencias |
Biblioteca(s): INIA Tacuarembó. |
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8. | | Olmos, F.; Do Carmo, M.; Sosa, M.; Cal, V. Densidad y distribución de plantas de Coelorachis selloana ln: Reunión del grupo técnico en forrajeras del Cono Sur, 22., 2008, Minas, Uruguay Bioma campos: innovando para mantener su sustentabilidad y competitividad. Memorias. Minas (Uruguay): INIA. FAO. PROCISUR, 2008. p. 177 Versión impresa y en CD ROM Instituto Nacional de Investigación Agropecuaria, Uruguay; FAO; PROCISURBiblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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11. | | VIÑOLES, C.; JAURENA, M.; DE BARBIERI, I.; DO CARMO, M.; MONTOSSI, F. Efecto de la alimentación preferencial del ternero y la dotación animal sobre la productividad del rodeo de cria pastoreando campo natural. In: BERRETTA, E.; MONTOSSI, F.; BRITO, G. (Ed.). Alternativas tecnológicas para los sistemas ganaderos del basalto. Montevideo, UY: INIA, 2014. 215-224 (Serie Técnica; 217)Tipo: Capítulo en Libro Técnico-Científico |
Biblioteca(s): INIA Tacuarembó; INIA Treinta y Tres. |
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12. | | JAURENA, M.; GIORELLO, D.; PEREZ GOMAR, E.; DO CARMO, M.; CARDOZO, G. Efectos de corto plazo de la interacción riego-fertilización en la producción y composición de un campo natural de basalto en Uruguay: II.38. In: CONGRESO NACIONAL, 6.; CONGRESO DEL MERCOSUR, 3.; JORNADA TÉCNICA DE PRODUCTORES [DE MANEJO DE PASTIZALES], 2., 2013, Santa Rosa, La Pampa, AR. Los pastizales y el hombre, producir y conservar. Anguil: INTA/UNLPam, 2013. p. 232.Tipo: Abstracts/Resúmenes |
Biblioteca(s): INIA La Estanzuela. |
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13. | | VIÑOLES, C.; JAURENA, M.; DE BARBIERI, I.; DO CARMO, M.; MONTOSSI, F. Effect of creep feeding and stocking rate on the productivity of beef cattle grazing grasslands. New Zealand Journal of Agricultural Research, 22 October 2013, v. 56, no. 4, p. 279-287. http://dx.doi.org/10.1080/00288233.2013.840320 History article: Received 17 January 2013; accepted 15 August 2013. Acknowledgements The authors would like to acknowledge the staff of the Research unit Glencoe, especially Pablo Cuadro and the graduate students of the Veterinary Faculty...Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
Biblioteca(s): INIA Tacuarembó. |
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16. | | Olmos, F.; Do Carmo, M.; Sosa, M.; Cal, V.; Díaz, S. Parámetros poblacionales de Gaudinia fragilis (L) en campos naturales de la región noreste de Uruguay ln: Reunión del grupo técnico en forrajeras del Cono Sur, 22., 2008, Minas, Uruguay Bioma campos: innovando para mantener su sustentabilidad y competitividad. Memorias. Minas (Uruguay): INIA; FAO; PROCISUR, 2008. p. 177 Versión impresa y en CD ROM Instituto Nacional de Investigación Agropecuaria, Uruguay; FAO; PROCISURBiblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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17. | | SOCA, P.; OLMOS, F.; BENTANCOR, D.; CAL, V.; SOSA, M.; DO CARMO, M. Variación en la producción y utilización del campo natural ante modificaciones en la intensidad de pastoreo y su repercusión en la condición corporal de vacas de cría ln: Reunión del grupo técnico en forrajeras del Cono Sur, 22., 2008, Minas, Uruguay Bioma campos: innovando para mantener su sustentabilidad y competitividad. Memorias. Minas (Uruguay): INIA; FAO; PROCISUR, 2008. p. 231 Versión impresa y en CD ROM Instituto Nacional de Investigación Agropecuaria, Uruguay; FAO; PROCISURTipo: Trabajos en Congresos/Conferencias |
Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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18. | | REYNO, R.; CONDON, F.; JAURENA, M.; DO CANTO, J.; DO CARMO, M.; OLMOS, F.; GUTIÉRREZ, F.; REBUFFO, M. Conservación y uso de los recursos genéticos de especies forrajeras en Uruguay. In: JORNADAS LATINOAMERICANAS DE RECURSOS GENÉTICOS, MEJORAMIENTO Y BIOTECNOLOGÍA DE ESPECIES FORRAJERAS, 2012, Pergamino, AR. [Junín, AR]: UNNOBA/INTA PERGAMINO, 2012.Tipo: Trabajos en Congresos/Conferencias |
Biblioteca(s): INIA La Estanzuela. |
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19. | | SOCA, P.; OLMOS, F.; ESPASANDIN, A.; BENTANCUR, D.; PEREYRA, F.; CAL, V.; SOSA, M.; DO CARMO, M. Herramientas para mejorar la utilización del forraje del campo natural, el ingreso económico de la cría y atenuar los efectos de la variabilidad climática en sistemas de cría vacuna del Uruguay. a. Impacto de cambios en la estrategia de asignación de forraje sobre la productivad de la cría con diversos grupos genéticos bajo pastoreo de campo natural Capítulo 3. Alternativas de manejo nutricional, control del amamantamiento y tratamientos hormonales durante el posparto. In: QUINTANS, G.; VELAZCO, J.I.; ROIG, G. (Eds.). Seminario de actualización técnica: cría vacuna. Montevideo (Uruguay): INIA, 2008. p. 110-119 (INIA Serie Técnica ; 174)Tipo: Capítulo en Libro Técnico-Científico |
Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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20. | | SOCA, P.; OLMOS, F.; ESPASANDÍN, A.; BENTANCUR, D.; PEREYRA, F.; CAL, V.; SOSA, M.; DO CARMO, M. Herramientas para mejorar la utilización del forraje del campo natural, el ingreso económico de la cría y atenuar los efectos de la variabilidad climática en sistemas de cría vacuna del Uruguay Capítulo 3. Alternativas de manejo nutricional, control del amamantamiento y tratamientos hormonales durante el posparto. In: QUINTANS, G.; VELAZCO, J.I.; ROIG, G. (Eds.). Seminario de actualización técnica: cría vacuna. Montevideo (Uruguay): INIA, 2008. p. 110-119 (INIA Serie Técnica ; 174)Tipo: Capítulo en Libro Técnico-Científico |
Biblioteca(s): INIA Treinta y Tres. |
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Registros recuperados : 26 | |
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