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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
09/03/2018 |
Actualizado : |
24/09/2018 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
GARCÍA, J.A.; GARCÍA Y SANTOS, C.; ROSAS, J.E.; DUTRA, F.; GARDNER, D. |
Afiliación : |
JUAN AGUSTÍN GARCÍA, Centro Universitario Regional Este, Universidad de la República, Uruguay.; CARMEN GARCÍA Y SANTOS, Departamento de Toxicología, Facultad de Veterinaria, Universidad de la República, Uruguay.; JUAN EDUARDO ROSAS CAISSIOLS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FERNANDO DUTRA, DILAVE (División Laboratorios Veterinarios), Regional Este, MGAP, Uruguay.; DALE GARDNER, USDA, ARX, Poisonuous Plant Research Laboratory, USA. |
Título : |
A survey of Senecio spp. affecting livestock in Uruguay and their associated pyrrolizidine alkaloid content. |
Fecha de publicación : |
2018 |
Fuente / Imprenta : |
Ciência Rural, feb., 2018, v.48(2), p. e20170621. |
ISSN : |
1678-4596 |
DOI : |
10.1590/0103-8478cr20170621 |
Idioma : |
Inglés |
Notas : |
Article history: Received 09.04.17; Approved 11.30.17 Returned by the author 12.27.17. CR-2017-0621.R1 |
Contenido : |
ABSTRACT:
In Eastern Uruguay there has been a significant increase of seneciosis in grazing livestock with most affected localities related to counties neighboring the Brazilian border. A survey in 28 farms associated with poisoning outbreaks in grazing cattle in Eastern Uruguay was carried out. Fifty populations of Senecio plants were collected for alkaloid analysis and species identification. Four species were identified: S. oxyphyllus DC, S. madagascariensis Poir, S. brasiliensis (Spreng.) Less., and S. selloi DC. Alkaloids were identified by a combination of GC-MS and HPLC-MS analysis and included: retrorsine in S. oxyphyllus; retrorsine, usaramine, and senecivernine/senecionine in S. selloi; retrorsine, senecivernine/senecionine, integerrimine, and usaramine in S. madagascariensis; and integerrimine, retrorsine and senecionine in S. brasiliensis. Total mean alkaloid concentration was reported to be highest in S. brasiliensis (17.6mg/g) followed by S. oxyphyllus (6.2mg/g), S. selloi (1.8mg/g) and S. adagascariensis (0.6mg/g). Alkaloid concentrations were also reported to be higher in 2015 vs. 2016 probably due to a common environmental factor. The species S. oxyphyllus and S. madagascariensis were not previously recognized as toxic plants in Eastern Uruguay. Particularly, S. oxyphyllus was present in 82% of the farms surveyed and occurred in high density with relative high concentrations of pyrrolizidine alkaloids suggesting S. oxyphyllus may be the main species involved in the reported outbreaks of seneciosis. MenosABSTRACT:
In Eastern Uruguay there has been a significant increase of seneciosis in grazing livestock with most affected localities related to counties neighboring the Brazilian border. A survey in 28 farms associated with poisoning outbreaks in grazing cattle in Eastern Uruguay was carried out. Fifty populations of Senecio plants were collected for alkaloid analysis and species identification. Four species were identified: S. oxyphyllus DC, S. madagascariensis Poir, S. brasiliensis (Spreng.) Less., and S. selloi DC. Alkaloids were identified by a combination of GC-MS and HPLC-MS analysis and included: retrorsine in S. oxyphyllus; retrorsine, usaramine, and senecivernine/senecionine in S. selloi; retrorsine, senecivernine/senecionine, integerrimine, and usaramine in S. madagascariensis; and integerrimine, retrorsine and senecionine in S. brasiliensis. Total mean alkaloid concentration was reported to be highest in S. brasiliensis (17.6mg/g) followed by S. oxyphyllus (6.2mg/g), S. selloi (1.8mg/g) and S. adagascariensis (0.6mg/g). Alkaloid concentrations were also reported to be higher in 2015 vs. 2016 probably due to a common environmental factor. The species S. oxyphyllus and S. madagascariensis were not previously recognized as toxic plants in Eastern Uruguay. Particularly, S. oxyphyllus was present in 82% of the farms surveyed and occurred in high density with relative high concentrations of pyrrolizidine alkaloids suggesting S. oxyphyllus may be the main species involved... Presentar Todo |
Palabras claves : |
ASTERACEAE; PLANT SECONDARY METABOLITES; PLANTAS TÓXICAS; POISONOUS PLANTS; SENECIOSIS. |
Thesagro : |
RUMIANTES; SENECIO. |
Asunto categoría : |
Q53 Contaminación y toxicología de alimentos para animales |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/8891/1/Rosas-Arb-2018-1.pdf
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Marc : |
LEADER 02472naa a2200289 a 4500 001 1058223 005 2018-09-24 008 2018 bl uuuu u00u1 u #d 022 $a1678-4596 024 7 $a10.1590/0103-8478cr20170621$2DOI 100 1 $aGARCÍA, J.A. 245 $aA survey of Senecio spp. affecting livestock in Uruguay and their associated pyrrolizidine alkaloid content.$h[electronic resource] 260 $c2018 500 $aArticle history: Received 09.04.17; Approved 11.30.17 Returned by the author 12.27.17. CR-2017-0621.R1 520 $aABSTRACT: In Eastern Uruguay there has been a significant increase of seneciosis in grazing livestock with most affected localities related to counties neighboring the Brazilian border. A survey in 28 farms associated with poisoning outbreaks in grazing cattle in Eastern Uruguay was carried out. Fifty populations of Senecio plants were collected for alkaloid analysis and species identification. Four species were identified: S. oxyphyllus DC, S. madagascariensis Poir, S. brasiliensis (Spreng.) Less., and S. selloi DC. Alkaloids were identified by a combination of GC-MS and HPLC-MS analysis and included: retrorsine in S. oxyphyllus; retrorsine, usaramine, and senecivernine/senecionine in S. selloi; retrorsine, senecivernine/senecionine, integerrimine, and usaramine in S. madagascariensis; and integerrimine, retrorsine and senecionine in S. brasiliensis. Total mean alkaloid concentration was reported to be highest in S. brasiliensis (17.6mg/g) followed by S. oxyphyllus (6.2mg/g), S. selloi (1.8mg/g) and S. adagascariensis (0.6mg/g). Alkaloid concentrations were also reported to be higher in 2015 vs. 2016 probably due to a common environmental factor. The species S. oxyphyllus and S. madagascariensis were not previously recognized as toxic plants in Eastern Uruguay. Particularly, S. oxyphyllus was present in 82% of the farms surveyed and occurred in high density with relative high concentrations of pyrrolizidine alkaloids suggesting S. oxyphyllus may be the main species involved in the reported outbreaks of seneciosis. 650 $aRUMIANTES 650 $aSENECIO 653 $aASTERACEAE 653 $aPLANT SECONDARY METABOLITES 653 $aPLANTAS TÓXICAS 653 $aPOISONOUS PLANTS 653 $aSENECIOSIS 700 1 $aGARCÍA Y SANTOS, C. 700 1 $aROSAS, J.E. 700 1 $aDUTRA, F. 700 1 $aGARDNER, D. 773 $tCiência Rural, feb., 2018$gv.48(2), p. e20170621.
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INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha actual : |
21/02/2014 |
Actualizado : |
18/02/2019 |
Tipo de producción científica : |
Documentos |
Autor : |
BALMELLI, G. |
Afiliación : |
GUSTAVO DANIEL BALMELLI HERNANDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Evaluación de fuentes de semilla comercial de Eucalyptus grandis. |
Fecha de publicación : |
2002 |
Fuente / Imprenta : |
In: INIA TACUAREMBÓ. PROGRAMA NACIONAL DE PRODUCCIÓN FORESTAL. JORNADA FORESTAL, 28 noviembre, Tacuarembó, 2002. Visita a ensayos de silvicultura y mejoramiento de pinos y eucaliptos. Tacuarembó (Uruguay): INIA, 2002. |
Páginas : |
p. 6-9 |
Serie : |
(INIA Serie Actividades de Difusión ; 303) |
Idioma : |
Español |
Contenido : |
El Programa Nacional Forestal del INIA viene desarrollando desde 1993 un Plan de Mejoramiento Genético para Eucalyptus grandis. Este plan ha permitido, desde 1998 producir semilla comercial seleccionada localmente. En base a estimaciones teóricas, se espera para esta semilla un aumento de productividad por hectárea de entre 15 y 25 por ciento. Sin embargo, estas estimaciones de ganancia deben verificarse en condiciones comerciales, comparándose la semilla producida por INIA con otras
fuentes de semilla de uso corriente a escala comercial. En este marco, los objetivos del ensayo son la evaluación del comportamiento productivo de diferentes fuentes de semilla comercial de E. grandis y la cuantificación de la ganancia genética obtenida por el Plan de Mejoramiento Genético de INIA. |
Palabras claves : |
FORESTRY PRODUCTION. |
Thesagro : |
EUCALYPTUS GRANDIS; SEMILLAS; URUGUAY. |
Asunto categoría : |
K10 Producción forestal |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/10774/1/SAD-303p6-9.pdf
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Marc : |
LEADER 01509naa a2200193 a 4500 001 1022119 005 2019-02-18 008 2002 bl uuuu u00u1 u #d 100 1 $aBALMELLI, G. 245 $aEvaluación de fuentes de semilla comercial de Eucalyptus grandis. 260 $c2002 300 $ap. 6-9 490 $a(INIA Serie Actividades de Difusión ; 303) 520 $aEl Programa Nacional Forestal del INIA viene desarrollando desde 1993 un Plan de Mejoramiento Genético para Eucalyptus grandis. Este plan ha permitido, desde 1998 producir semilla comercial seleccionada localmente. En base a estimaciones teóricas, se espera para esta semilla un aumento de productividad por hectárea de entre 15 y 25 por ciento. Sin embargo, estas estimaciones de ganancia deben verificarse en condiciones comerciales, comparándose la semilla producida por INIA con otras fuentes de semilla de uso corriente a escala comercial. En este marco, los objetivos del ensayo son la evaluación del comportamiento productivo de diferentes fuentes de semilla comercial de E. grandis y la cuantificación de la ganancia genética obtenida por el Plan de Mejoramiento Genético de INIA. 650 $aEUCALYPTUS GRANDIS 650 $aSEMILLAS 650 $aURUGUAY 653 $aFORESTRY PRODUCTION 773 $tIn: INIA TACUAREMBÓ. PROGRAMA NACIONAL DE PRODUCCIÓN FORESTAL. JORNADA FORESTAL, 28 noviembre, Tacuarembó, 2002. Visita a ensayos de silvicultura y mejoramiento de pinos y eucaliptos. Tacuarembó (Uruguay): INIA, 2002.
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