En Chile, no existen otros productores de selenio refinado o derivados con la excepción de Cormiquim, por eso desarrollar este proyecto es una oportunidad para penetrar en mercado externos. Es así, como el objetivo del proyecto es desarrollar dióxido de selenio y selenito de sodio. Además, se pro...
Con el objeto de determinar la actividad sanguínea de glutatión peroxidasa (GSH-Px; E.C. 1.11.1.9) en bovinos lecheros de la IX Región de la Araucanía (38º LS y 71º LO), Chile, y establecer su eventual asociación con el contenido de Se en el forraje, durante el otoño y la primavera de 1999 se tom...
The content of selenium (Se) in forage samples and the blood activity of glutathione peroxidase (GSH-Px; EC 1.11.1.9) of groups of lactating cows and heifers were evaluated between autumn and spring of 1999 in 12 dairy herds from IXth Region (38º S and 71º W) of Chile. Se-concentration was determ...
Wittwer, F.
,
Araneda, P.
,
Ceballos, A.
,
Contreras, P.A.
,
Andaur Rademacher, Marcela
,
Bohmwald, H.
,
[Actividad de glutation peroxidasa (GSH-Px) en sangre de bovinos a pastoreo de la IX Región, Chile y su relación con la concentración de selenio en el forraje]
,
[Glutathion peroxidase activity (GSH-Px) in grazing dairy cattle in the south of Chile (IXth Region) and their relation with selenium contents in the forage]
,
Glutathion peroxidase activity (GSH-Px) in grazing dairy cattle in the south of Chile (IXth Region) and their relation with selenium contents in the forage
Pastures in the south of Chile have been shown to be selenium deficient, and as selenium is a component of deiodinase type 1, which is necessary for the synthesis of triiodothyronine (T3) at peripheral levels, the effect of selenium deficiency on the blood concentration of theses hormones in cows...
Contreras, P.A.
,
Matamoros, Roberto
,
Monroy, R.
,
Kruze, J.
,
Leyán, V.
,
Andaur Rademacher, Marcela
,
Bohmwald, H.
,
Wittwer, F.
,
[Effect of a selenium-deficient diet on blood values of T3 and T4 in cows]
,
Effect of a selenium-deficient diet on blood values of T3 and T4 in cows
Objetivo. Dos experimentos se realizaron para determinar el estatus de selenio en equinos Criollo-Chileno a pastoreo y, evaluar la respuesta a la suplementación con Na2SeO3. Materiales y métodos. Exp.1A caballos pertenecientes a 10 criaderos del sur de Chile se les determinó la actividad sanguíne...
Objective. Two experiments were conducted to determine the selenium status in grazing Chilean-Criollo horses and evaluate their response to a Na2SeO3 supplement. Material and methods. Exp.1The blood activity of glutathione peroxidase (GPx, EC.1.11.1.9) (AcGPx) was determined in horses kept grazin...
AIM: To determine the effect of grazing pasture that had a low selenium (Se) concentration on serum concentrations of triiodothyronine (T3) and thyroxine (T4), and erythrocyte glutathione peroxidase (GSH-Px) activity in dairy cows. METHODS: Forty pregnant Friesian cows were grazed on pasture that...
Selenium (Sc) is an important antioxidant considered among the fertilization programs in developed countries. In Chile, chemical fertilization based in Se is inefficient due the physicochemical characteristics of Andisol that sustain the 60% of crop production. Andisol also are highly conductive ...
Durán, Paola
,
Viscardi, Sharon
,
Acuña, Jacquelinne J.
,
Cornejo, Pablo
,
Azcón, Rosario
,
Mora, María de la Luz
,
[Endophytic selenobacteria and arbuscular mycorrhizal fungus for selenium biofortification and Gaeumannomyces graminis biocontrol]
,
Endophytic selenobacteria and arbuscular mycorrhizal fungus for selenium biofortification and Gaeumannomyces graminis biocontrol
The aim of this study was to evaluate the effect of a low Selenium diet and its supplementation on the serum levels of T3, T4 and on the lipid profile in dairy cows under an induced oxidative stress. Twelve pregnant dairy Chilean-Friesian cows were selected and assigned to one of two groups, cont...
El objetivo de este estudio fue evaluar el efecto de un bajo consumo de Se y su suplementación sobre la concentración sérica de T3 y T4 y sobre el perfil lipídico en vacas lactantes bajo estrés oxidativo inducido. Fueron seleccionadas 12 vacas Frisón Negro gestantes, asignadas auno de dos grupos ...
El objetivo de este estudio fue evaluar la concentración de selenio (Se) en muestras de leche procedentes de rebaños lecheros del sur de Chile y sus eventuales variaciones estacionales, y complementariamente examinar la eventual relación entre dicha concentración con algunos indicadores de produc...
An observational study was conducted in 59 Chilean dairy farms to evaluate bulk tank milk selenium (Se) concentration, and its association with measures of milk production parameters and udder health, measured as bulk tank somatic cell count. Fifty-nine dairy herds from Southern Chile were select...
