Selenomethionine
Mostrando 1-12 de 77 artigos, teses e dissertações.
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1. Effect of different sources of selenium on performance and characteristics of immune system of broiler chickens
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 die
R. Bras. Zootec.. Publicado em: 28/11/2019
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2. The effect of feeding inorganic and organic selenium sources on the hematological blood parameters, reproduction and health of dairy cows in the transition period
ABSTRACT. 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
Acta Sci., Anim. Sci.. Publicado em: 24/10/2019
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3. The effect of feeding inorganic and organic selenium sources on the performance and content of selenium in milk of transition dairy cows
ABSTRACT. The aim of this study was to determine the effects of supplementing close-up and fresh dairy cows’ diets with sodium selenite or organic sources of selenium (Se) on the dry matter intake (DMI), milk production and composition. Based on their body condition score (BCS), previous lactation milk yield and expected calving date, 24 multiparous Holste
Acta Sci., Anim. Sci.. Publicado em: 04/07/2019
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4. Effects of different sources of selenium supplementation on antioxidant indices, biochemical parameters, thyroid hormones and Se status in transition cows
ABSTRACT. The aim of this study was to determine the effects of supplementing close-up and fresh dairy cows’ diets with sodium selenite or organic sources of selenium (Se) on the serum biochemical parameters and antioxidant indicators and Se status. Twenty-four multiparous Holstein dairy cows were balanced by body condition score (BCS), previous lactation
Acta Sci., Anim. Sci.. Publicado em: 29/04/2019
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5. Selenium for preventing cancer
BACKGROUND: Selenium is a trace element essential to humans. Higher selenium exposure and selenium supplements have been suggested to protect against several types of cancers. OBJECTIVE: Two research questions were addressed in this review: What is the evidence for: 1. an aetiological relationship between selenium exposure and cancer risk in women and men?;
Sao Paulo Medical Journal. Publicado em: 2012
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6. Avaliação de fontes de selênio para ovinos / Evaluation of selenium sources to ovines
This research was carried out at FZEA/USP to compare the utilization of organic selenium (Se) sources to sodium selenite in lambs diet, through analyses of tissues Se concentrations, liver glutathione peroxidase activity, metabolic balance of Se and bioavailability assay. Forty Suffolk lambs were used and submitted to three sources and three levels of supp
Publicado em: 2006
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7. Interactions of Methionine and Selenomethionine with Methionine Adenosyltransferase and Ethylene-generating Systems 1
Since selenomethionine appears to be a better precursor of ethylene in senescing flower tissue of Ipomoea tricolor and in indole acetic acid-treated pea stem sections than is methionine (Konze JR, N Schilling, H Kende 1978 Plant Physiol 62: 397-401), we compared the effectiveness of selenomethionine and methionine to participate in reactions which may be con
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8. In Vitro Incorporation of Selenomethionine into Protein by Vigna radiata Polysomes
Vigna radiata polysomes efficiently incorporated [75Se]selenomethionine, [14C]methionine, and [14C]leucine in vitro. The optimal conditions for translation were determined to be 4.8 millimolar Mg2+, 182 millimolar K+, and pH 7.4. The rates of incorporation of [75Se]selenomethionine and [14C]methionine were similar when measured separately, but [75Se]selenome
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9. In Vitro Incorporation of Selenomethionine into Protein by Astragalus Polysomes 1
Selenium-accumulator plants synthesize selenium compounds that differ from those produced by nonaccumulators. To determine if there are any subcellular differences between accumulators and nonaccumulators in the use of selenomethionine in vitro, polysomes from Astragalus crotalariae (accumulator) and Astragalus lentiginosis (nonaccumulator) were translated i
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10. Combined use of 99mtechnetium-labelled macroaggregates of albumin and 75selenium-selenomethionine in the diagnosis of lung cancer
Critchley, M., Testa, H. J., and Stretton, T. B. (1974).Thorax, 29, 421-424. Combined use of 99mtechnetium-labelled macroaggregates of albumin and 75selenium-selenomethionine in the diagnosis of lung cancer. A two-stage isotope technique has been used in 30 patients with radiographic evidence of circumscribed pulmonary lesions in an attempt to establish the
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11. Selenium Toxicity: Aminoacylation and Peptide Bond Formation with Selenomethionine 1
Selenomethionine and methionine were compared as substrates for in vitro aminoacylation, ribosome binding, and peptide bond formation with preparations from wheat germ. Selenomethionine paralleled methionine in all steps of the translation process except peptide bond formation. Peptide bond formation with the initiating species of tRNAMet demonstrated that s
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12. Selenomethionine, a Methyl Donor for Bacterial Nucleic Acids
dl-Selenomethionine is as efficient a methyl donor for nucleic acid methylation in both Bacillus megaterium KM and Escherichia coli WWU as dl-methionine.