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| García,Juan Agustín; Santos,Carmen García y; Rosas,Juan; Dutra,Fernando; Gardner,Dale. |
| 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seneciosis; Plant secondary metabolites; Ruminants; Poisonous plants; Asteraceae. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000200501 |
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| Rodriguez,Alejandro Martín; Schild,Carlos Omar; Cantón,Germán José; Riet-Correa,Franklin; Armendano,Joaquín Ignacio; Caffarena,Rubén Darío; Brambilla,Emilio César; García,Juan Agustín; Morrell,Eleonora Lidia; Poppenga,Robert; Giannitti,Federico. |
| ABSTRACT: White muscle disease (WMD), nutritional myodegeneration or enzootic muscular dystrophy, is a nutritional condition associated with selenium and/or vitamin E deficiency in ruminants. These elements are constituents of the major body antioxidant systems. Depletion of selenium results in oxidative damage to cardiac and skeletal muscle cells, resulting in myodegeneration and myonecrosis, typical lesions of WMD. Selenium deficiency is common in South America, but WMD is underreported. This research describes clinical, biochemical and pathological findings in two episodes of WMD associated with selenium deficiency in beef and dairy calves in Argentina and Uruguay with concurrent copper deficiency in one of them, which resulted in spontaneous calf... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mortality; Cardiac failure; Mineral deficiencies; Nutritional myopathy; South America. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000500550 |
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