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Registro completo
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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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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
22/03/2016 |
Actualizado : |
28/09/2018 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
CLARIGET, J.; ROMAN, L.; KARLEN, M.; ÁLVAREZ-OXILEY, A.; LÓPEZ-MAZZ, C.; PÉREZ-CLARIGET, R. |
Afiliación : |
JUAN MANUEL CLARIGET BRIZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LORENA CAROLINA ROMAN GAY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MAURICIO KARLEN, Universidad de la República (UdelaR)/ Facultad de Agronomía; ANDREA ÁLVAREZ-OXILEY, Universidad de la República (UdelaR)/ Facultad de Agronomía; CARLOS LÓPEZ-MAZZ, Universidad de la República (UdelaR)/ Facultad de Agronomía; RAQUEL PÉREZ-CLARIGET, Universidad de la República (UdelaR)/ Facultad de Agronomía. |
Título : |
Supplementation with a mixture of whole rice bran and crude glycerin on metabolic responses and performance of primiparous beef cows. |
Fecha de publicación : |
2016 |
Fuente / Imprenta : |
Revista Brasileira de Zootecnia, 2016, v. 45, no.1.p.16-25. |
ISSN : |
1806-9290 |
Idioma : |
Inglés |
Notas : |
Article history: Received April 17, 2015 //Accepted November 18, 2015. |
Contenido : |
ABSTRACT - This study investigated the effect of a supplement containing whole rice bran and crude glycerin for
21 days before mating on metabolic, productive, and reproductive responses of 28 primiparous suckling beef cows. Cows
were randomly assigned to a control group (CON, n = 14), grazing on grasslands, and a supplemented group (SUP, n = 14),
grazing on grasslands and supplemented daily individually with 1 kg dry matter (DM) of whole rice bran + 550 mL crude
glycerin (224 g kg?1 DM of methanol) per cow. After 33 days of natural mating, cows that had not expressed estrus were
subjected to a fixed-time artificial insemination protocol. Ten days after the insemination program, bulls were reintroduced for
21 days. Supplementation increased milk yield (SUP: 5.7±0.2 vs. CON: 5.0±0.2 kg d?1 ), milk protein content (SUP: 3.1±0.2
vs. CON: 2.8±0.2%), and body weight of cow (SUP: 379±2 vs. CON: 373±2 kg) and calf (SUP: 150±2 vs. CON: 142±2 kg).
Supplementation improved the energy balance, increased plasma concentrations of cholesterol (SUP: 223.2±6.4 vs. CON:
202.1±6.4 mg dL?1) and glucose (SUP: 72.0±1.2 vs. CON: 68.6±1.2 mg dL?1), and reduced non-esterified fatty acids
(SUP: 0.45±0.02 vs. CON: 0.56±0.02 mmol L?1 ). The percentage of cows on superficial anestrous after supplementation was
greater in SUP than in CON group (57 vs. 21%, respectively); however, no difference in final pregnancy rate was found
(SUP: 79 vs. CON: 64%). There was no evidence that the ingestion of crude glycerin with high content of methanol induced
clinical or hepatic disorders. Supplementation of whole rice bran and crude glycerin is not toxic, and can improve the energy
balance, reflecting in increase in milk yield and calf growth, with a slight effect on the reproductive activity- MenosABSTRACT - This study investigated the effect of a supplement containing whole rice bran and crude glycerin for
21 days before mating on metabolic, productive, and reproductive responses of 28 primiparous suckling beef cows. Cows
were randomly assigned to a control group (CON, n = 14), grazing on grasslands, and a supplemented group (SUP, n = 14),
grazing on grasslands and supplemented daily individually with 1 kg dry matter (DM) of whole rice bran + 550 mL crude
glycerin (224 g kg?1 DM of methanol) per cow. After 33 days of natural mating, cows that had not expressed estrus were
subjected to a fixed-time artificial insemination protocol. Ten days after the insemination program, bulls were reintroduced for
21 days. Supplementation increased milk yield (SUP: 5.7±0.2 vs. CON: 5.0±0.2 kg d?1 ), milk protein content (SUP: 3.1±0.2
vs. CON: 2.8±0.2%), and body weight of cow (SUP: 379±2 vs. CON: 373±2 kg) and calf (SUP: 150±2 vs. CON: 142±2 kg).
Supplementation improved the energy balance, increased plasma concentrations of cholesterol (SUP: 223.2±6.4 vs. CON:
202.1±6.4 mg dL?1) and glucose (SUP: 72.0±1.2 vs. CON: 68.6±1.2 mg dL?1), and reduced non-esterified fatty acids
(SUP: 0.45±0.02 vs. CON: 0.56±0.02 mmol L?1 ). The percentage of cows on superficial anestrous after supplementation was
greater in SUP than in CON group (57 vs. 21%, respectively); however, no difference in final pregnancy rate was found
(SUP: 79 vs. CON: 64%). There was no evidence that the ingestion of crude gly... Presentar Todo |
Palabras claves : |
GLICERINA CRUDA; METHANOL; MILK PROTEIN; PROTEÍNA DE LECHE; SALVADO DE ARROZ; SHALLOW ANESTRUS; VACA DE CARNE. |
Thesagro : |
METANOL. |
Asunto categoría : |
L52 Fisiología Animal- Crecimiento y desarrollo |
Marc : |
LEADER 02745naa a2200301 a 4500 001 1054496 005 2018-09-28 008 2016 bl uuuu u00u1 u #d 022 $a1806-9290 100 1 $aCLARIGET, J. 245 $aSupplementation with a mixture of whole rice bran and crude glycerin on metabolic responses and performance of primiparous beef cows.$h[electronic resource] 260 $c2016 500 $aArticle history: Received April 17, 2015 //Accepted November 18, 2015. 520 $aABSTRACT - This study investigated the effect of a supplement containing whole rice bran and crude glycerin for 21 days before mating on metabolic, productive, and reproductive responses of 28 primiparous suckling beef cows. Cows were randomly assigned to a control group (CON, n = 14), grazing on grasslands, and a supplemented group (SUP, n = 14), grazing on grasslands and supplemented daily individually with 1 kg dry matter (DM) of whole rice bran + 550 mL crude glycerin (224 g kg?1 DM of methanol) per cow. After 33 days of natural mating, cows that had not expressed estrus were subjected to a fixed-time artificial insemination protocol. Ten days after the insemination program, bulls were reintroduced for 21 days. Supplementation increased milk yield (SUP: 5.7±0.2 vs. CON: 5.0±0.2 kg d?1 ), milk protein content (SUP: 3.1±0.2 vs. CON: 2.8±0.2%), and body weight of cow (SUP: 379±2 vs. CON: 373±2 kg) and calf (SUP: 150±2 vs. CON: 142±2 kg). Supplementation improved the energy balance, increased plasma concentrations of cholesterol (SUP: 223.2±6.4 vs. CON: 202.1±6.4 mg dL?1) and glucose (SUP: 72.0±1.2 vs. CON: 68.6±1.2 mg dL?1), and reduced non-esterified fatty acids (SUP: 0.45±0.02 vs. CON: 0.56±0.02 mmol L?1 ). The percentage of cows on superficial anestrous after supplementation was greater in SUP than in CON group (57 vs. 21%, respectively); however, no difference in final pregnancy rate was found (SUP: 79 vs. CON: 64%). There was no evidence that the ingestion of crude glycerin with high content of methanol induced clinical or hepatic disorders. Supplementation of whole rice bran and crude glycerin is not toxic, and can improve the energy balance, reflecting in increase in milk yield and calf growth, with a slight effect on the reproductive activity- 650 $aMETANOL 653 $aGLICERINA CRUDA 653 $aMETHANOL 653 $aMILK PROTEIN 653 $aPROTEÍNA DE LECHE 653 $aSALVADO DE ARROZ 653 $aSHALLOW ANESTRUS 653 $aVACA DE CARNE 700 1 $aROMAN, L. 700 1 $aKARLEN, M. 700 1 $aÁLVAREZ-OXILEY, A. 700 1 $aLÓPEZ-MAZZ, C. 700 1 $aPÉREZ-CLARIGET, R. 773 $tRevista Brasileira de Zootecnia, 2016$gv. 45, no.1.p.16-25.
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