Consulta: subjectFacets:"Selenium"
Registros recuperados: 48
Data/hora: 03/06/2024 05:35:43

Suplementación de vitamina E y selenio a borregas gestantes y sus efectos en las crías.
Provedor de dados: 32
Autores: Monsalvo García, Araely.
Se sabe que el proporcionar selenio (Se) y vitamina E (vit E) en niveles adecuados se mejora la actividad reproductiva, sin Embargo existen pocos trabajos en los que se haya evaluado el proporcionar un suplemento de Se y vit E a borregas primerizas durante la etapa de gestación hasta el momento del parto. En este trabajo se tuvieron 21 borregas gestantes Dorset, Suffolk y cruza de ambas, con peso vivo promedio de 55 ± 10 kg y un año de edad, las que se Distribuyeron al azar en cuatro tratamientos (T): T1) testigo (6 repeticiones); T2) suplemento con Se (0.2 ppm kg-1 alimento d-1) (5 repeticiones); T3) suplemento con vit E (400 U.I. animal-1) (5 repeticiones) y T4)  suplemento con Se y vit E (5 repeticiones). El suplemento se dio cada día a las borregas,...
Tipo: Thesis
Palavras-chave: Selenio; Vitamina E; GSH-Px; Gammaglobulinas; Borregas; Selenium; Vitamin E; Gamma-globulin; Ewes; Maestría; Ganadería.
Ano: 2010
URL: http://hdl.handle.net/10521/131

Influencia de la suplementación con selenito de sodio sobre variables digestivas en corderos
Provedor de dados: 32
Autores: Razo Rodríguez, Oscar Enrique del.
El Se inorgánico en ovinos ha provocado cambios ruminales (pH, AGV y población microbiana)  y en digestibilidad de algunos nutrientes; por lo que posiblemente estos cambios puedan influir  sobre el requerimiento de Se para corderos en crecimiento. Por ello se realizó un experimento en  dos cuadros latinos repetidos con arreglo factorial de tratamientos, usando 8 corderos (43.2 ±  4.7 kg de peso) con cánula ruminal y duodenal. Se midieron cambios en fermentación ruminal,  digestibilidad de nutrientes y balance de Se provocados por la suplementación con selenito de  sodio (cuatro niveles: 0, 200, 500 y 800 µg Se kg-1 MS) en dietas con 69 y 50% de grano de  maíz. La concentración de Se en las dietas fue 220 ± 28 µg Se kg-1 MS. En líquido ruminal se  observó:...
Tipo: Tesis
Palavras-chave: Selenio; Grano; Requerimiento; Fermentación ruminal; Digestibilidad; Doctorado; Ganadería; Selenium; Grain; Requirement; Ruminal fermentation; Digestibility.
Ano: 2008
URL: http://hdl.handle.net/10521/1213

Suplementación de vitamina E y selenio a borregas gestantes y sus efectos en las crías.
Provedor de dados: 32
Autores: Monsalvo García, Araely.
Se sabe que el proporcionar selenio (Se) y vitamina E (vit E) en niveles adecuados se mejora la actividad reproductiva, sin Embargo existen pocos trabajos en los que se haya evaluado el proporcionar un suplemento de Se y vit E a borregas primerizas durante la etapa de gestación hasta el momento del parto. En este trabajo se tuvieron 21 borregas gestantes Dorset, Suffolk y cruza de ambas, con peso vivo promedio de 55 ± 10 kg y un año de edad, las que se Distribuyeron al azar en cuatro tratamientos (T): T1) testigo (6 repeticiones); T2) suplemento con Se (0.2 ppm kg-1 alimento d-1) (5 repeticiones); T3) suplemento con vit E (400 U.I. animal-1) (5 repeticiones) y T4)  suplemento con Se y vit E (5 repeticiones). El suplemento se dio cada día a las borregas,...
Tipo: Thesis
Palavras-chave: Selenio; Vitamina E; GSH-Px; Gammaglobulinas; Borregas; Selenium; Vitamin E; Gamma-globulin; Ewes; Maestría; Ganadería.
Ano: 2010
URL: http://hdl.handle.net/10521/131

Selenio y vitamina E en la fertilidad de ovejas pelibuey sincronizadas con progesterona
Provedor de dados: 32
Autores: Fraire Cordero, Silvia.
El selenio y la vitamina E tienen funciones importantes para mantener la integridad de la membrana celular, razón por la cual se les relaciona con la reproducción. La finalidad fue evaluar el efecto de la administración subcutánea de Selenio y Vitamina E (Se-VE), de gonadotropina corionica equina (eCG) y una estrategia de alimentación (Alimentación Dirigida; AD) en la fertilidad de ovejas Pelibuey. La aplicación de Se-VE se realizó dos días antes del retiro de la progesterona y se observó la incidencia, inicio y distribución del estro a través del tiempo, tasa ovulatoria, porcentajes de retorno a estros, parición y fertilidad, así como la fecundidad y prolificidad. Se utilizaron 96 ovejas  las cuales fueron agrupadas y asignadas al azar a uno de ocho...
Palavras-chave: Selenio; Vitamina E; Fertilidad; Alimentación dirigida; Ovejas Pelibuey; Selenium; Vitamin E; Fertility; Directed feeding; Pelibuey ewes; Maestría; Ganadería.
Ano: 2010
URL: http://hdl.handle.net/10521/99

Selenio y vitamina E en la fertilidad de ovejas pelibuey sincronizadas con progesterona
Provedor de dados: 32
Autores: Fraire Cordero, Silvia.
El selenio y la vitamina E tienen funciones importantes para mantener la integridad de la membrana celular, razón por la cual se les relaciona con la reproducción. La finalidad fue evaluar el efecto de la administración subcutánea de Selenio y Vitamina E (Se-VE), de gonadotropina corionica equina (eCG) y una estrategia de alimentación (Alimentación Dirigida; AD) en la fertilidad de ovejas Pelibuey. La aplicación de Se-VE se realizó dos días antes del retiro de la progesterona y se observó la incidencia, inicio y distribución del estro a través del tiempo, tasa ovulatoria, porcentajes de retorno a estros, parición y fertilidad, así como la fecundidad y prolificidad. Se utilizaron 96 ovejas  las cuales fueron agrupadas y asignadas al azar a uno de ocho...
Palavras-chave: Selenio; Vitamina E; Fertilidad; Alimentación dirigida; Ovejas Pelibuey; Selenium; Vitamin E; Fertility; Directed feeding; Pelibuey ewes; Maestría; Ganadería.
Ano: 2010
URL: http://hdl.handle.net/10521/99

Evaluación de dos compuestos comerciales con cromo+selenio quelatados y Saccharomyces cerevisiae en dietas para ovinos en engorda.
Provedor de dados: 32
Autores: Reséndiz Hernández, Miriam.
El objetivo de este estudio fue evaluar el efecto de dos fuentes orgánicas queladas comerciales, Cr-levadura y Se-levadura, y de Saccharomyces cerevisiae (SC), en la digestibilidad in situ de la MS, FDN, FDA y PC; pH, AGV y N-NH3 en el rumen; consumo de MS, ganancia diaria de peso (GDP), conversión alimenticia (CA), peso y contenido de grasa de la canal de borregos. Los tratamientos fueron: 1) testigo (T; sin Cr, Se, ni SC); 2) T + Cr + Se; 3) T + SC; y 4) T + Cr + Se + SC, los cuales se asignaron al azar a 20 borregos criollos (29.88 ± 2.98 kg) en finalización para el experimento de variables productivas; y en un cuadro latino 4 x 4 con cuatro borregos machos (30 ± 2 kg) con cánula ruminal para evaluar degradación in situ y variables de fermentación...
Palavras-chave: Cromo; Selenio; Levadura; Ovinos; Digestibilidad; Rumen; Chromium; Selenium; Yeast; Sheep; Digestibility; Maestría; Ganadería.
Ano: 2012
URL: http://hdl.handle.net/10521/750

Evolution of Forest Systems: the Role of Biogeochemical Cycles in Determining Sustainable Forestry Practices
Provedor de dados: 7
Autores: Flueck, Werner T.; National Council for Scientific and Technical Research (CONICET), Argentina; Institute of Natural Resources Analysis, Universidad Atlantida Argentina; Swiss Tropical Institute, University of Basel; wtf@deerlab.org.
The exploitation of natural resources such as forests leads to sustainable forest management (SFM). The key question is how to define and parametrize &amp;#8220;sustainable use.&amp;#8221;  Promoting forest use that conserves spatial characteristics of forest landscapes and the structure and composition of forest stands was proposed as a way of maintaining elements of biodiversity such as species richness and genetic variation. However, to establish the parameter space for sustainable forest use, it is essential to consider the nutrient requirements of forest systems, that is, plants and animals, the need for fertilizer application, and the effects on biogeochemical cycles, a cornerstone of biological evolution and, thus, biodiversity. The use of forest...
Tipo: Peer-Reviewed Response
Palavras-chave: Biogeochemical cycle; Fertilizer; Macronutrients; Micronutrients; Phosphorus; Selenium; Sustainable forest management.
Ano: 2009

Oxidative stress assessment by glutathione peroxidase activity and glutathione levels in response to selenium supplementation in patients with Mucopolysaccharidosis I, II and VI
Provedor de dados: 74
Autores: Oliveira-Silva,José Araújo de; Yamamoto,Joyce Umbelino Pinto; Oliveira,Renata Bernardes de; Monteiro,Vaneisse Cristina Lima; Frangipani,Beatriz Jurkiewcz; Kyosen,Sandra Obikawa; Martins,Ana Maria; D’Almeida,Vânia.
Abstract We assessed levels of plasma selenium (Se), selenoproteins and their change after Se supplementation in patients with mucopolysaccharidosis (MPS) types I, II and VI. This was done in a retrospective study of the medical records of 30 patients with MPS I (n=13), MPS II (n=9) and MPS VI (n=8) who were being treated with enzyme replacement therapy. As part of routine nutritional monitoring, Se levels were measured, revealing that 28 patients (93.3%) had values below the normal range. Therefore, they received supplementation for 12 months, and Se was measured after 6 and 12 months. Glutathione peroxidase (GPx) activity, total glutathione (GSHt), oxidized glutathione (GSSG) and reduced glutathione (GSH) were measured at baseline and 6 months after Se...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mucopolysaccharidosis; Oxidative stress; Selenium; Glutathione peroxidase.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000100001

Over-activation of the Drosophila melanogaster hsp83 gene by selenium intoxication
Provedor de dados: 74
Autores: Golombieski,Ronaldo Medeiros; Graichen,Daniel Ângelo Sgranzerla; Rocha,João Batista Teixeira da; Valente,Vera Lúcia da Silva; Loreto,Élgion Lúcio da Silva.
Selenium is an important dietary micronutrient and an essential component of selenoproteins and the active sites of some enzymes, although at high concentrations it is toxic. We investigated diphenyl diselenide ((C6H5)2Se2 ) for its effects on the developmental stages of Drosophila melanogaster and found that in the larval and pupae stages the toxic threshold for this compound when added to the banana-agar medium on which the larva were fed was 350 µmol. In adult flies, fed on the same media, there were no observable toxic effects below 500 µmol but there were toxic effects above 600 µmol, indicating that adult flies were more resistant to selenium intoxication. In larvae, a when diphenyl diselenide was present above the toxic threshold there was increased...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gene activation; Hsp83 gene; Selenium; Diphenyl diselenide.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000100022

Principais deficiências minerais em bovinos de corte.
Provedor de dados: 14
Autores: MORAES, S. da S.
Deficiências e desequilíbrios minerais em bovinos são descritas em quase todas as regiões do mundo. Os elementos minerais comumente deficientes para bovinos com dieta exclusiva de pasto são: P, Na, I, Cu, Co, e Se. Em algumas regiões sob condições especificas, Ca, Mg e Mn. Por outro lado, Fe e Mn estão, normalmente, em excesso nas regiões do Cerrado Central do Brasil e Pantanal. A ingestão de dietas deficientes ou desequilibradas de elementos minerais torna mais difícil a manutenção de concentrações ótimas nos tecidos . No inicio, causa lesões bioquímicas que induzem a trocas nas formas de funcionamento, concentração e atividade do elemento nos fluidos e tecidos do corpo. Essas alterações diferem conforme os elementos e suas funções, com o grau de duração...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bovino de corte; Brasil; Mineral deficiencies; Sulphur; Yodine.; Cálcio; Cloro; Cobre; Cobalto; Deficiência Mineral; Ferro; Enxofre; Fósforo; Manganês; Magnésio; Iodo; Potássio; Selênio; Sódio; Zinco.; Calcium; Cobalt; Copper; Brazil; Beef cattle; Chlorine; Iron; Magnesium; Manganese; Phosphorus; Potassium; Sodium; Selenium; Zinc.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325198

Trace element levels in foetus-mother pairs of short-beaked common dolphins (Delphinus delphis) stranded along the French coasts
Provedor de dados: 5
Autores: Lahaye, V; Bustamante, Paco; Dabin, W; Churlaud, C; Caurant, Florence.
Tissues of foetus-mother pairs of common dolphins (Delphinus delphis) stranded along the French coasts (Bay of Biscay and English Channel) were analysed for their Cd, Cu, Hg, Se and Zn contents. In the kidneys, foetal Cd levels were extremely low, and strong relationships between Cu and Zn suggested the involvement of metallothioneins since early foetal life. The results also indicated a limited maternal transfer of Hg during pregnancy since levels in the tissues of foetuses were below 1 mu g g(-1) w.wt. However, hepatic Hg levels in foetuses increased with body length, and were also proportionate to maternal hepatic, renal and muscular Hg levels. Lastly, affinities between Hg and Se in tissues would participate in Hg neutralisation in both mothers-through...
Tipo: Text
Palavras-chave: North eastern Atlantic; Pregnancy; Selenium; Mercury; Marine mammals.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3691.pdf

Selenium Concentrations in Alfalfa from Several Sources Applied to a Low Selenium, Alkaline Soil
Provedor de dados: 18
Autores: Carter, D.L.; Brown, M.J.; Robbins, C.W.
Tipo: Article
Palavras-chave: Alfalfa; Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1969
URL: http://eprints.nwisrl.ars.usda.gov/80/1/144.pdf

Selenium mobility in soils and its absorption, translocation, and metabolism in plants
Provedor de dados: 18
Autores: Mayland, H.F.; Gough, L.P.; Stewart, K.C.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Technical Bulletin
Palavras-chave: Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1991

Chapter I: Selenium in soils and plants from native and irrigated lands at the Kendrick Reclamation Project Area, Wyoming
Provedor de dados: 18
Autores: Erdman, J.A.; Severson, R.C.; Crock, J.G.; Harms, T.F.; Mayland, H.F.
Tipo: Conference or Workshop Item
Palavras-chave: Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/907/1/742.pdf

Selenium in soils and plants from native and irrigated lands at the Kendrick Reclamation Project Area, Wyoming
Provedor de dados: 18
Autores: Erdman, J.A.; Severson, R.C.; Crock, J.G.; Harms, T.F.; Mayland, H.F.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Technical Bulletin
Palavras-chave: Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1991

Chapter E: Selenium mobility in soils and its absorption, translocation, and metabolism in plants
Provedor de dados: 18
Autores: Mayland, H.F.; Gough, L.P.; Stewart, K.C.
Tipo: Conference or Workshop Item
Palavras-chave: Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/909/1/744.pdf

Selenium uptake by plants from soils amended with inorganic and organic materials
Provedor de dados: 18
Autores: Ajwa, H.A.; Bañuelos, G.S.; Mayland, H.F.
Tipo: Article
Palavras-chave: Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1998
URL: http://eprints.nwisrl.ars.usda.gov/699/1/968.pdf

Selenium in soils and plants from native and irrigated lands at the Kendrick Reclamation Project Area, Wyoming
Provedor de dados: 18
Autores: Erdman, J.A.; Severson, R.C.; Crock, J.G.; Harms, T.F.; Mayland, H.F.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Technical Bulletin
Palavras-chave: Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1989

Soil-Climate-Plant Relationships in the Etiology of Grass Tetany (Chapter 6)
Provedor de dados: 18
Autores: Mayland, H.F.; Grunes, D.L.
Tipo: Book Section
Palavras-chave: Chemistry; Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1979
URL: http://eprints.nwisrl.ars.usda.gov/759/1/427.pdf

Selenium in Soils and Plants
Provedor de dados: 18
Autores: Mayland, H.F.
Tipo: Book Section
Palavras-chave: Selenium; Mass Import - autoclassified (may be erroneous).
Ano: 1985
URL: http://eprints.nwisrl.ars.usda.gov/764/1/549.pdf

Leaching of Added Selenium from Alkaline Soils as Influenced by Sulfate
Provedor de dados: 18
Autores: Brown, M.J.; Carter, D.L.
Tipo: Article
Palavras-chave: Selenium; Sulfur; Mass Import - autoclassified (may be erroneous).
Ano: 1969
URL: http://eprints.nwisrl.ars.usda.gov/79/1/142.pdf

Selenium invoked antioxidant defense system in Azolla caroliniana plant
Provedor de dados: 85
Autores: Hassan,AMA; Mostafa,EM.
Plants of Azolla caroliniana were treated with different selenium concentrations (0, 1, 2, 5, 7, 10 ppm) for seven days. Selenium (Se) content in Azolla plants increased significantly with increasing Se concentrations in the culture media up to 5 ppm. This indicated that Azolla plants were a good accumulator for Se. Selenium accumulation determined changes in Azolla biomass, doubling time and relative growth rates. Treatment of Azolla plants with low concentrations of Se (1 ppm) resulted in a significant increase in biomass. This was accompanied by a reduction in hydrogen peroxide and malondialdehyde (MDA) contents; the decrease percentages were 78% and 60%, respectively at 1 ppm Se in comparison with the control. At higher Se concentrations (&gt;5 ppm),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Selenium; Azolla caroliniana; Ascorbate; Glutathione; Antioxidant enzymes; Glutathione peroxidase.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572016000200014

Impact of selenium fertilization on the activity of detoxifying enzymes of H2O2 in bean plants
Provedor de dados: 85
Autores: Hermosillo-Cereceres,MA; Sánchez,E; Muñoz-Márquez,E; Guevara-Aguilar,A; García-Bañuelos,M; Ojeda-Barrios,D.
Selenium (Se) is an essential element for many organisms, although in high concentrations it may become toxic, leading to the generation of reactive oxygen species (ROS). In this study, bean plants received different application rates of Se (0, 10, 20, 40, 80, and 160 &amp;#956;M) in the form of selenite and selenate to evaluate the activity of the detoxifying enzymes of H2O2. The results indicated that the activity of these enzymes in bean plants depended on the chemical form of Se: selenite at rates of 20 &amp;#956;M or greater diminished biomass and yield, increasing the activity of superoxide dismutase (SOD). Even when catalase (CAT) activity also increased, it appeared that it was efcient at detoxifying H2O2 in the presence of Se, given also the rise...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris L; Green bean; Biofortification; Selenium.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572014000200017

Identifying Market Preferences for High Selenium Beef
Provedor de dados: 31
Autores: Hovde,   Scott C.; Wachenheim,   Cheryl J.; Hearne,   Robert R.; Nganje,   William E.
Selenium is an element found in relatively high concentrations in crops and livestock raised on high-selenium soils located in North and South Dakota.  Evidence suggests that a high-selenium diet such as would be obtained from consuming these products can reduce the risk of certain cancers.  The region's livestock and grain producers are exploring potential high-selenium product marketing opportunities.  A choice experiment was conducted to identify preferred attributes for a high-selenium beef product and the characteristics of potential market segments.  In a national survey, participants chose between different levels of health claim approval and research, prices, and selenium origin.  A multinomial logit regression model was estimated.  Labeling...
Tipo: Report
Palavras-chave: Choice Experiment; FDA approval; Functional Foods; Health Claim; Labeling; Selenium; Consumer/Household Economics; Livestock Production/Industries.
Ano: 2007
URL: http://purl.umn.edu/7633

Effect of the supplementation of vitamins and organic minerals on the performance of broilers under heat stress
Provedor de dados: 89
Autores: Laganá,C; Ribeiro,AML; Kessler,AM; Kratz,LR; Pinheiro,CC.
The objective of this experiment was to evaluate the effect of diet supplementation with vitamins C and E and organic minerals Zn and Se on the performance of 1 to 35 day-old broilers from, kept under cyclic heat stress (25 to 32ºC). Four levels of vitamin-mineral supplementation were used (T1-control diet (60/30 IU of vit E for starter and growing diet, respectively, zero vit. C, 80 ppm of inorganic Zn, 0.3 ppm of inorganic Se); T2-control diet + 100 UI vit E and 300 ppm vit C/kg; T3-control diet + 40 ppm Zn and 0,3 ppm Se/kg; T4-control diet + T2 and T3 levels) and two environments - thermoneutral and cyclic heat stress (TN and HS) from 14 to 35 days of age. In the period when part of the birds was submitted to HS, from 14 to 35 days, it was observed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ascorbic acid; Dl-alpha-tocopherol; Selenium; Thermal regulation; Zinc.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000100006

The impact of organic and inorganic selenium on the immune system of growing broilers submitted to immune stimulation and heat stress
Provedor de dados: 89
Autores: da Silva,ICM; Ribeiro,AML; Canal,CW; Trevizan,L; Macagnan,M; Gonçalves,TA; Hlavac,NRC; de Almeida,LL; Pereira,RA.
One to 42-d-old (432) female broilers were fed different levels of inorganic selenium (ISe) and organic selenium (OSe), according to the following treatments: (1) 0.3 mg ISe; (2) 0.3 mg ISe + 0.2 mg OSe; (3) 0.5 mg ISe and (4) 0.3 mg OSe/ kg of feed. All birds were vaccinated against infectious bursal disease (IBD) at 19d of age and three birds/replicate (R) were inoculated with sheep red blood cells (SRBC) at 32d. Three other birds/R received Freund's adjuvant at 37d and avian tuberculin (AT) in the wattle at 47d of age. All birds were submitted to heat stress after 21d. Performance parameters, bursa and spleen weights, lymphocyte bursa depletion, antibody (Ab) production against IBD and SRBC, hematocrit, leukocytes, heterophil/lymphocyte ratio (H/L), and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibody; Broiler; Infectious bursal disease; Performance; Selenium.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000400005

Effect of protein, carbohydrate, lipid, and selenium levels on the performance, carcass yield, and blood changes in broilers
Provedor de dados: 89
Autores: Hada,FH; Malheiros,RD; Silva,JDT; Marques,RH; Gravena,RA; Silva,VK; Moraes,VMB.
The objective of this study was to evaluate the performance, carcass and parts yield, and blood changes in broilers fed different protein, carbohydrate, and lipid levels. Birds were fed a commercial diet until seven days of age. On day 8, birds were distributed according to a completely randomized experimental design in a 4 x 2 factorial arrangement (control diet, low protein diet, low carbohydrate diet or low lipid diet vs. supplementation of 0 or 0.3ppm organic selenium) with four replicates of 15 birds each. Broilers fed low protein presented lower body weight, feed intake, and worse feed conversion ratio on day 42, as well as lower carcass and breast yields, higher leg and abdominal fat yields, higher triglyceride and lower uric acid blood levels....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbohydrates; Lipids; Blood parameters; Protein; Selenium.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000400014

Effect of different sources of selenium on performance and characteristics of immune system of broiler chickens
Provedor de dados: 96
Autores: Shabani,Roozbeh; Fakhraei,Jafar; Yarahmadi,Hossein Mansoori; Seidavi,Alireza.
ABSTRACT An experiment was conducted based on a completely randomized design with 500 Ross 308 broiler chickens to investigate the effect of three different sources of selenium on performance and characteristics of immune system. Chickens were arranged in 10 treatments and five repetitions (10 chickens for each repetition). Ten treatments of experimental diet were considered in the study, including a basal diet (control); 0.5, 0.8, and 1.2 mg nano-selenium + basal diet (three treatments); 0.5, 0.8, 1.2 mg selenomethionine + basal diet; and 65, 80, and 100 mg vitamin E + selenium + basal diet. Findings suggested that adding selenomethionine (1.2 mg) to the basal diet resulted in a significant effect on feed conversion ratio and weight of broilers. In fact,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler; Immune response; Immunoglobin; Selenium.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100535

Carcass characteristics and meat evaluation of Nelore cattle subjected to different antioxidant treatments
Provedor de dados: 96
Autores: Carmo,Thiago de Jesus do; Peripolli,Vanessa; Costa Jr,João Batista Gonçalves; Tanure,Candice Bergmann; Fioravanti,Maria Clorinda Soares; Restle,João; Kindlein,Liris; McManus,Concepta.
ABSTRACT Forty Nelore cattle were used to evaluate the effects of supplementation with different antioxidants on carcass characteristics and meat quality of feedlot cattle. Animals were fed Brachiaria brizantha hay and subjected to five treatments (control and four antioxidants: zinc, selenium, vitamin E, and selenium + vitamin E). After a 105-day feeding period, cattle were slaughtered. Tissue composition, as well as carcass proximate composition, color, tenderness, pH, and fatty acid profile were evaluated. Analysis of variance was carried out and means compared by Tukey test at 0.05 probability. The group fed selenium showed the lowest muscle amount (66.61 g/100 g) compared with the other antioxidants evaluated. There was no difference among treatments...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fatty acid; Saponin; Selenium; Vitamin E; Zinc.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000200138

EFFECT OF SELENITE ON THE TOTAL POLYPHENOL CONTENT AND ANTIOXIDATIVE ACTIVITY OF AQUEOUS AND ETHANOLIC EXTRACTS IN SPROUTS OF FOUR AGRONOMIC SPECIES
Provedor de dados: 127
Autores: Motomura,Yoshie; Reyes-Díaz,Marjorie; Mora Gil,Maria de la Luz.
Sprouts from some agricultural plants grown under dark conditions are known to contain some functional food ingredients. Recently, great attention has been paid to foods with natural antioxidative ingredients for human health and animal feed. Among the functional food compounds, phenolics and polyphenols are the most desirable food bioactives due to their antioxidative activity. The aim of this study was to determine the differences between aqueous and ethanohc extracts and the effect of selenite on the polyphenol content, and whether the antioxidative activity of selenite-treated sprouts growing in Petri dishes is enhanced compared to non-treated ones. The total polyphenol content in aqueous extract and ethanolic extract increased significantly in wheat...
Tipo: Journal article
Palavras-chave: Antioxidative activity; Crop seedling; Ethanohc extract; Polyphenol; Selenium.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912008000100005

Brazil nuts: determination of natural elements and aflatoxin
Provedor de dados: 36
Autores: Martins,Maristela; Pacheco,Ariane Mendonça; Lucas,Ana Cyra Santos; Andrello,Avacir Casanova; Appoloni,Carlos Roberto; Xavier,Jose Junior Mendonça.
A study was carried out to evaluate the association of levels of radioactivity, selenium and aflatoxin in shelled Brazil nuts, which were classified in different sizes, for export. The selenium determinations were performed by inductively coupled plasma optical emission spectrometry (LOQ = 3.0 µg g-1), and aflatoxins were detected by Liquid chromatography-mass spectrometry (LOQ = 0.85 µg kg-1), recovery rates were between 92 and 100%. Radioactivity was measured by high-resolution gamma spectrometry. The selenium mean concentration was (22.7 ± 7.4) µg g-1. (n = 30). Mean activities determined for the following radium isotopes were: 15.77 Bq kg-1 for 224Ra, 104.8 Bq kg-1 for 226Ra and 99.48 Bq kg-1 for 228Ra. For 226Ra, the levels did not vary significantly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Radioactivity; Selenium; Bertholletia excelsa.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672012000100018

The effect of feeding inorganic and organic selenium sources on the hematological blood parameters, reproduction and health of dairy cows in the transition period
Provedor de dados: 2
Autores: Khalili, Mohsen; Chamani, Mohammad; Amanlou, Hamid; Nikkhah, Ali; Sadeghi, Aliasghar; Dehkordi, Farhad Kamali; Rafiei, Mohammad; Shirani, Vahid.
The purpose of this study was to investigate the effects of four types of diets containing different forms of selenium on the hematological blood parameters, reproduction and health of dairy cattle during the transition period. Twenty-four close-up dry cows with a mean of 259 ± 1days of pregnancy and expected 21 ± 1days prior to parturition were selected. The cows were fed four diets: 1) basal diet without selenium supplementation (C); 2) basal diet plus 0.5ppm selenium in the form of sodium selenite (Se-S) 3) basal diet plus 0.5ppm selenium in the form of selenium yeast (Se-Y); 4) basal diet plus 0.5ppm selenium in the form of selenomethionine (Se-M). Blood samples for measuring hematological blood parameters (including lymphocyte, red blood cells,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Selenium; Hematological blood parameters; Reproduction; Health; Dairy cows.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/45371

Determination of selenium toxicity to Oreochromis niloticus based on hematological parameters - doi: 10.4025/actascibiolsci.v34i2.8755
Provedor de dados: 3
Autores: Seriani, Robson; Instituto de Pesca-SP - IP/SAA.; Ranzani-Paiva, Maria José Tavares; Instituto de Pesca-SP - IP/SAA.; Gonçalves, Adriano; Centro de Aquicultura, Universidade Estadual Paulista “Júlio de Mesquita Filho"; Siqueira, Silmara Regina; Instituto de Pesca-SP - IP/SAA.; Lombardi, Julio Vicente; Instituto de Pesca-SP - IP/SAA.
Selenium (Se) is described as an essential micronutrient and participates in different biological functions, as the antioxidant defense systems maintenance and regulation. However, when in high concentrations, Se may cause toxic effects as well as hematological changes in fish. The aim of the present study was to determine the toxicity of selenium in the form of sodium selenate (Na2Se6+O4) in Oreochromis niloticus based on hematological parameters, after exposure to different concentrations (0.01, 0.14 and 1.4 mg Se6+ L-1). The erythrocytic and leukocytic series were examined over 14 days at intervals of 0, 3, 5, 7,10 and 14 days. The erythrocytic series showed significant alterations in the first 7 days, including the control group. Neutrophils and...
Palavras-chave: 2.07.01.00-4 haematological; Water pollution; Selenium; Toxicity Fisiologia.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8755

Zeolite and selenium application and their effects on production and physiological attributes of canola cultivars under water stress
Provedor de dados: 115
Autores: Zahedi,Hossein; Shirani-Rad,A. Hossein; Tohidi-Moghadam,H. Reza.
To study the effects of zeolite and selenium (Se) application on production and physiological attributes of three canola (Brassica napus L.) cultivars under water stress, an experiment was conducted in two growing seasons (2006 and 2007), at Karaj, Iran. The experimental design was randomized complete blocks in factorial split plot with three replications, and three factors: 1) irrigation: complete and restricted at stem elongation stage; 2) zeolite: 0 and 10 t ha-1; 3) Se (as sodium selenate): 0, 15 and 30 g L-1. These treatments were randomized into Zarfam, Okapi and Sarigol canola cultivars. According to the results, Zarfam cultivar showed the lowest electrolyte leakage and the highest biological yield due to zeolite application and 30 g L-1 Se. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological yield; Brassica napus L.; Water stress; Cellular electrolyte leakage; Selenium; Zeolite.
Ano: 2012
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952012000500006

Biological functions of selenium and its potential influence on Parkinson's disease
Provedor de dados: 42
Autores: ELLWANGER,JOEL H.; FRANKE,SILVIA I.R.; BORDIN,DIANA L.; PRÁ,DANIEL; HENRIQUES,JOÃO A.P.
ABSTRACT Parkinson's disease is characterized by the death of dopaminergic neurons, mainly in the substantia nigra, and causes serious locomotor dysfunctions. It is likely that the oxidative damage to cellular biomolecules is among the leading causes of neurodegeneration that occurs in the disease. Selenium is an essential mineral for proper functioning of the brain, and mainly due to its antioxidant activity, it is possible to exert a special role in the prevention and in the nutritional management of Parkinson's disease. Currently, few researchers have investigated the effects of selenium on Parkinson´s disease. However, it is known that very high or very low body levels of selenium can (possibly) contribute to the pathogenesis of Parkinson's disease,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neurodegeneration; Nutrition; Oxidative stress; Parkinson's disease; Selenium.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501655

Selenium in bovine plasma, soil and forage measured by neutron activation analysis
Provedor de dados: 45
Autores: Gil,S.; Hevia,S.; Dallorso,M.; Resnizky,S.
A deficiência de selênio já foi identificada pela medição da atividade da enzima glutationa de peroxidase no sangue de animais (vacas) criados em certas regiões do Pampa Úmido, mais especificamente na cidade de Nueve de Julio (Buenos Aires - Argentina). Em trabalho anterior, a análise de ativação neutrônica confirmou esses baixos níveis de selênio em uma determinada fazenda de cria para gado de corte. Neste trabalho, foram analisados os níveis de selênio no solo, na forragem e no plasma dos animais do mesmo estabelecimento. A população analisada (n=60) apresentou níveis de selênio abaixo do normal (30,1 ± 4,6µg/ml). De maneira semelhante, a concentração de selênio da forragem consumida - matéria seca igual a 30% - proveniente de uma área de baixada do...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Selenium; Deficiency; Cows; Neutron activation analysis.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000200018

Effect of selenium-vitamin E injection in selenium-deficient dairy goats and kids on the Mexican plateau
Provedor de dados: 45
Autores: Ramírez-Bribiesca,J.E.; Tórtora,J.L.; Huerta,M.; Hernández,L.M.; López,R.; Crosby,M.M.
Three experiments were carried out to determine the optimum selenium-vitamin E injection level to maintain acceptable blood selenium (Se) status of does and kids, as well as to determine the relation of that status to mortality rates in kids. In experiment 1, 238 goats were assigned to one of three groups during the mating period: A1-control, A2- 0.06mgSe+0.8IU vitE/kgBW and A3-0.125mgSe+1.7IU vitE/kgBW. No differences (P&gt;.05) for fertility and prolificacy were observed among the groups. Blood Se concentration did not differ among Se-vit E groups and control group before injection, and both groups showed Se deficient condition. There was a trend (P&lt;.05, 32%) to increase Se blood level 60 days post-treatment, but difference was not observed between A2...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Goat; Selenium; Vitamin E; México.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000100011

Distribution of selenium in sheep treated with dipheny diselenide
Provedor de dados: 45
Autores: Leal,M.L.R.; Rocha,J.B.T.; Corte,C.L.D.; Aires,A.R.; Rocha,J.F.X.; Zanatta,R.S.; Carpes,J.L.S.; Szinwelski,G.A.; Stefanello,S.; Pivoto,F.L.
ABSTRACT The aim of the present study was to report the in vivo distribution of selenium in sheep. For this, animals were allocated into two groups (control group and treated group) and kept in metabolic cages for a period of 37 days. The treated group received a single dose (6µmol/kg) of Diphenyl Diselenide, intravenously. Plasma and erythrocytes samples were collected at different times. Adipose tissue, muscles (latissimusdorsi, semitendinosus, and supra-scapular) heart, liver, lung, kidney, intestine and brain were sampled at 30 days post-treatment, in order to determine the selenium concentration. The results demonstrated that the selenium, from the Diphenyl Diselenide group, was higher in erythrocytes (4.8mg/L, six hours post-treatment) when compared...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Ovine; Selenium; Tissue.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000401017

Co-operative effect of glutathione depletion and selenium induced oxidative stress on API and NFkB expression in testicular cells in vitro: insights to regulation of spermatogenesis
Provedor de dados: 48
Autores: SHALINI,SONIA; BANSAL,MOHINDER P.
Previous studies have shown that transcription factors, API and NFkB exert important roles in the process by which selenium regulates spermatogenesis. Glutathione, an intracellular thiol, acts as a source of reducing power and aids in maintenance of the cellular redox status. The activities of selenium are closely related to the availability of glutathione. Presently, mouse testicular cells were cultured in the presence of BSO, a known glutathione depletor, to generate oxidative stress. Selenium (Se) was added as sodium selenite to these cells at concentrations of 0.5 µM and 1.5 µM. It was observed that at 1.5 µM, Se acted as a pro-oxidant and significantly decreased the redox ratio. RT PCR analysis revealed that cjun, cfos expression increased in...
Tipo: Journal article
Palavras-chave: API; BSO; GSH; NFkB; Oxidative stress; Selenium; Testicular cells.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602007000400005

Hypercholesterolemia and tissue-specific differential mRNA expression of type-1 5'-iodothyronine deiodinase under different selenium status in rats
Provedor de dados: 48
Autores: DHINGRA,SANJIV; BANSAL,MOHINDER P.
Type-1 5'-iodothyronine deiodinase (5'-DI) is responsible for conversion of T4 to T3. Selenium (Se) is an integral part of this enzyme. Keeping in view the strong association between atherosclerosis and hypothyroidism, the present study examined the behavior of 5'-DI in liver, aorta and thyroid during hypercholesterolemia following different Se status, i.e., Se deficiency (0.02ppm), adequate (0.2ppm) and excess dose (1ppm) in SD male rats. Animals were fed a control or high-cholesterol diet (2%) for 1 and 2 months. 5'-DI activity and mRNA expression was measured by RIA and RT-PCR respectively. In liver and aorta, 5'-DI expression significantly decreased with the Se-deficient and the high-cholesterol diet. The trend was opposite in thyroid, i.e., mRNA...
Tipo: Journal article
Palavras-chave: Selenium; Hypercholesterolemia; 5'-DI; Cholesterol; RT-PCR.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000200013

Selenium protective activity against aflatoxin B1 adverse affects on Drosophila melanogaster
Provedor de dados: 52
Autores: Uysal,Handan; Agar,Güleray.
The aim of this work was to investigate the effects of AFB1 and AFB1+Se4+ on various developmental stages of Drosophila melanogaster were investigated. Both different concentrations of AFB1 and Se4+ applied with AFB1 were fed during the flies developmental period (egg, larva and pupae). When F1 progeny of control and application groups were compared with each other, AFB1 was found to have extending the process of metamorphosis and decreasing the total number of offsprings. But, these negative effects were inhibited with selenium treatment at different concentrations (4.0 and 8.0 ppm). These results suggested that selenium could effectively inhibit AFB1- induced abnormalities of the developmental stages of D.melanogaster.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Selenium; Aflatoxin B1; Developmental stages; Protective effect; D. melanogaster.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000200009

Characterization and Metal Detoxification Potential of Moderately Thermophilic Bacillus cereus from Geothermal Springs of Himalaya
Provedor de dados: 52
Autores: Ghalib,Aslam Khan; Yasin,Muhammad; Faisal,Muhammad.
Two thermophilic Bacillus cereus strains (B. cereus-TA2 and B. cereus-TA4) used in the present study were isolated from the geothermal spring of Hunza valley, Gilgit, Pakistan. They showed the ability to withstand and grow at high temperature (85°C). Both these strains could resist multiple metals (copper, cadmium, mercury, manganese, zinc, arsenic, chromium and selenium). Strain B. cereus-TA4 reduced Cr (VI) at pH 5.0 to 9.0 but maximum reduction (83%) was observed at pH 7.0 after 48 h when initially supplied with 200 µg mL-1of K2CrO4. Lower initial concentrations such as 100 µg mL-1 supported higher reduction (90 to 95%) than that of high concentration such as 500 µg mL-1 (20 to 30%). Both the strains reduced nearly 70% of Se (IV) after 48 h of growth at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromium; Bioremediation; Selenium; Heavy metals.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000400554

Chemical profile, agaritine and selenium content of Agaricus bisporus
Provedor de dados: 52
Autores: Mohamed,Eman Mostafa.
Chemical profile of the Agaricus bisporus samples were analyzed using GC/MS method in ethanolic extracts. A total of 174 metabolic products were detected, which included 13 significant metabolites between 1.2 to 83 % (w/w); other 13 metabolites at 1% (w/w) and 148 metabolites less than 1% classified into 12 categories. These metabolites had many medicinal activities, which included anti-cancer, anti-cardiovascular diseases, anti-hypercholesterol, anti-microbial, hepatoprotective, human health supporting and immune enhancer. HPLC analysis of water extracts of the A. bisporus samples showed that the spores and gills in the fresh adult mushroom had higher percentage of agaritine mycotoxin than the other parts. These contents were decreased by different...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agaricus bisporus; Chemical profile; Agaritine; Selenium; Anticancer; Antihypercholesterol; Aroma compounds; Galvanometric; GC/MS and HPLC.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000600015

Protective effect of sodium selenite on genotoxicity to human whole blood cultures induced by aflatoxin B1
Provedor de dados: 52
Autores: Geyikoglu,Fatime; Türkez,Hasan.
The aim of this study was to investigate the effects of selenium and aflatoxin on human whole blood cultures (WBC) in relation to induction of sister-chromatid exchange (SCE). Results showed that the frequency of SCEs in peripheral lymphocytes was significantly increased by the direct-acting mutagen AFB1 (at doses 5 and 10 µM except for 1µM) compared with controls. When sodium selenite (Na2SeO3) was added at a molar ratio of 5x10-7 and 1x10-6, cells did not show significant increase in SCE frequency. Whereas, SCE rates induced by the various AFB1 concentrations could be significantly reduced by the presence of Na2SeO3 in a clear dose-related manner. These results indicated that selenite and AFB1 mutually antagonized their ability to cause DNA damage...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aflatoxin B1; Selenium; Sister-chromatid exchanges; Genotoxicity; Blood.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000800006

Protective effect of sodium selenite against the genotoxicity of aflatoxin B1 in human whole blood cultures
Provedor de dados: 52
Autores: Geyikoglu,Fatime; Türkez,Hasan.
This study was designed to investigate the effects of selenium and aflatoxin on human whole blood cultures (WBC) in relation to induction of sister-chromatid exchange (SCE). The results showed that the frequency of SCEs in peripheral lymphocytes was significantly increased by the direct-acting mutagen AFB1 (at doses 5 and 10 µM except for 1µM) compared to controls. When sodium selenite (Na2SeO3) was added alone at a molar ratio of 5x10-7 and 1x10-6, cells did not show significant increase in SCE frequency. Whereas, SCE rates induced by the various AFB1 concentrations could be significantly reduced by the presence of Na2SeO3 in a clear dose-related manner. These results indicated that selenite and AFB1 mutually antagonized their ability to cause DNA damage...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aflatoxin B1; Selenium; Sister-chromatid exchanges; Genotoxicity; Whole blood cultures.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000400006

Relationship between Paratuberculosis and the microelements Copper, Zinc, Iron, Selenium and Molybdenum in Beef Cattle
Provedor de dados: 58
Autores: Paolicchi,F.; Perea,J.; Cseh,S.; Morsella,C.
To study the deficiency of minerals and its relationship with Paratuberculosis, blood, serum, and fecal samples were obtained from 75 adult bovines without clinical symptoms of the disease and from two bovines with clinical symptoms of the disease, from two beef herds with a previous history of Paratuberculosis in the Province of Buenos Aires, Argentina. Serum samples were processed by ELISA and feces were cultured in Herrolds medium. Copper, zinc and iron in serum were quantified by spectrophotometry and selenium was measured by the activity of glutathione peroxidase. We also determined copper, zinc, iron and molybdenum concentrations in pastures and the concentration of sulfate in water. Mycobacterium avium subsp paratuberculosis (Map) was isolated from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paratuberculosis; Micronutrients; Selenium; Molybdenum; Copper.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100022

Quality and stability of eggs from laying hens fed with organic minerals and lycopene
Provedor de dados: 65
Autores: Cruz,Flavia Kleszcz da; Garcia,Elis Regina de Moraes; Ferraz,André Luiz Julien; Souza,Karina Márcia Ribeiro de; Feliciano,William Britez; Rohod,Rosileide Vilalba.
ABSTRACT: This study aimed to evaluate the effect of using lycopene and organic minerals in diets for laying hens on the egg quality and stability of eggs stored for 30 days under different storage environments. An entirely randomized design was adopted in 2x3x3 factorial scheme (mineral sources x lycopene levels x storage periods) with six replicates of eight hens per experimental unit. The experimental diets were: feed containing inorganic minerals (IM) without added lycopene; IM with added lycopene (400mg kg-1); IM with added lycopene (800mg kg-1); organic minerals (OM) without added lycopene; OM with added lycopene (400mg kg-1); OM with added lycopene (800mg kg-1). After 112 days of feeding experimental diets, it was selected 60 eggs treatment-1, which...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Carotenoid; Chelate; Selenium; TBARS.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000100157

Feeding different levels of vitamin E and selenium has no effect on serum immunoglobulin Y (IgY) production by layers vaccinated against Escherichia coli and avian encephalomyelitis virus
Provedor de dados: 65
Autores: Kindlein,Giselle; Ribeiro,Andréa Machado Leal; Canal,Cláudio Wageck; Vieira,Maitê de Moraes.
The effects of vitamin E and selenium (Se) supplementation on the immunity of hens vaccinated against a mixture of six swine-pathogenic Escherichia coli (EC) and avian encephalomyelitis virus (AEV) were studied. Antibody production (AbP) was evaluated in ninety 49 to 57-week-old H&amp;N Nick Chick hens fed diets containing 14IU Vitamin E kg-1 (basal diet), 27, 59, 111, or 111IU vitamin E kg-1 + 0.56ppm Se supplementation. At 51 wks of age, half of the hens were vaccinated against EC, and all birds were vaccinated against AEV. At 53-weeks of age, the birds received a second dose of EC vaccine. Blood samples were collected weekly and serum was analyzed by ELISA for anti-EC IgY and was expressed as optical density (OD). Vaccinated hens had higher serum OD...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avian encephalomyelitis; Escherichia coli; Immunoglobulin; Selenium; Vitamin E.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782007000500024