Effects of Dietary Form of Selenium on Its Distribution in Eggs

Čobanová, Klaudia; Petrovič, Vladimír; Mellen, Martin; Arpášová, Henrieta; Grešaková, Ľubomíra; Faix, Š.

doi:10.1007/s12011-011-9125-7

Cited by 25 publications

(16 citation statements)

References 38 publications

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“…The vast majority of MeHg, but not necessarily Se, in eggs is within the albumen (Čobanová et al, 2011;Golubkina and Papazyan, 2006;Kennamer et al, 2005), and recent Hg acquired through the diet can be rapidly transferred to the eggs (Heinz et al, 2009a;. Thus, courtship feeding provides a mechanism whereby male foraging behavior can influence contaminant concentrations in their mates and eggs.…”

Section: Discussionmentioning

confidence: 99%

Maternal transfer of contaminants in birds: Mercury and selenium concentrations in parents and their eggs

Ackerman

Eagles‐Smith

Herzog

et al. 2016

Environmental Pollution

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We conducted a detailed assessment of the maternal transfer of mercury and selenium to eggs in three bird species (n = 107 parents and n = 339 eggs), and developed predictive equations linking contaminant concentrations in eggs to those in six tissues of the mother (blood, muscle, liver, kidney, breast feathers, and head feathers). Mercury concentrations in eggs were positively correlated with mercury concentrations in each of the mother's internal tissues (R(2) ≥ 0.95), but generally not with feathers. For each species, the proportion of mercury transferred to eggs decreased as mercury concentrations in the mother increased. At the same maternal mercury concentration, the proportion of mercury transferred to eggs differed among species, such that Forster's tern (Sterna forsteri) and black-necked stilt (Himantopus mexicanus) females transferred more methylmercury to their eggs than American avocet (Recurvirostra americana) females. Selenium concentrations in eggs also were correlated with selenium concentrations in the mother's liver (R(2) = 0.87). Furthermore, mercury and selenium concentrations in tern eggs were positively correlated with those in the father (R(2) = 0.84). Incubating male terns had 21% higher mercury concentrations in blood compared to incubating females at the same egg mercury concentration. We provide equations to predict contaminant concentrations in eggs from each of the commonly sampled bird tissues.

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Section: Discussionmentioning

confidence: 99%

Maternal transfer of contaminants in birds: Mercury and selenium concentrations in parents and their eggs

Ackerman

Eagles‐Smith

Herzog

et al. 2016

Environmental Pollution

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“…Many previous studies attributed the high biological effect of SY to l-selenomethionine (l-Se-Met), a Se analog of l-methionine (l-Met), which was the most abundant Se chemical form in SY (Kelly and Power 1995;Cobanova et al 2011;Slowinska et al 2011). Besides, l-Se-Met is also the main Se species in cereals, forage crops, soybeans, and grassland legumes (Whanger 2002).…”

Section: Introductionmentioning

confidence: 99%

Comparison of different forms of dietary selenium supplementation on gene expression of cytoplasmic thioredoxin reductase, selenoprotein P, and selenoprotein W in broilers

Zhan¹,

Wang²,

Yuan³

et al. 2014

Czech J. Anim. Sci.

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ABSTRACT:Effects of different forms of dietary selenium (Se) supplementation on gene expression of cytoplasmic thioredoxin reductase (TrxR1), selenoprotein P (SelP), and selenoprotein W (SelW) in broilers were investigated. A total of six hundred Ross 308 broilers (1-day-old) with similar body weight were randomly divided into three groups, each of which included 5 replicates of 40 birds. These three treatments received the same basal diet with only background Se level of 0.04 mg Se/kg, supplemented with 0.15 mg Se/kg as sodium selenite (SS) or l-selenomethionine (l-Se-Met) or d-selenomethionine (d-Se-Met) for 42 days. The SS supplemented diet increased TrxR1 activity in liver (P < 0.01) and kidney (P < 0.01) as well as SelP concentration in serum (P < 0.05) and liver (P < 0.01) more than the d-Se-Met supplemented diet. The addition of SS also highly increased liver (P < 0.01) and kidney (P < 0.01) TrxR1 activities of broilers in comparison with broilers fed l-Se-Met diet. In addition, liver TrxR1 activity in l-Se-Met group was higher than that in d-Se-Met group (P < 0.05). Liver and kidney mRNA levels of TrxR1 and SelP as well as breast muscle SelW mRNA level were significantly increased by l-and d-Se-Met supplementation in comparison with SS supplementation (P < 0.01), while the d-Se-Met group showed more effective (P < 0.01) than the l-Se-Met group in increasing the mRNA levels of TrxR1 and SelP in liver and kidney. Therefore, dietary l-Se-Met and d-Se-Met supplementation could improve mRNA levels of different selenoproteins studied and reduce amounts of TrxR1 and SelP in broilers compared with SS. Besides, l-Se-Met is more effective than d-Se-Met in raising TrxR1 activity and decreasing mRNA abundance of TrxR1 and SelP in broilers.

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“…Aspila, 1991;Syrjala and Aspila, 1993;Ortman and Pehrson, 1999;Knowles et al, 1999;Gierus et al, 2002;Brzoska, 2004;Slavik et al, 2008;Ceballos et al, 2009;Meyer et al, 2014. (g): Based on: Paton et al, 2002;Utterback et al, 2005;Skřivan et al, 2006;Pan et al, 2007;Pavlovic et al, 2009;Cobanová et al, 2011;Surai and Fisinin, 2014.…”

Section: Metabolic and Residue Studiesmentioning

confidence: 99%

Safety and efficacy of selenium compounds (E8) as feed additives for all animal species: sodium selenite, based on a dossier submitted by Retorte GmbH Selenium Chemicals and Metals

2016

EFS2

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Selenium is a trace element that is essential for vertebrates and involved in a series of vital metabolic functions. Sodium selenite is considered to be a safe and efficacious source of selenium for all animal species/categories. The use of sodium selenite as a source of selenium in animal nutrition is considered to be safe for the consumer, provided that the total maximum authorised content of selenium in complete feed is respected. The additive is considered to be an irritant to the skin, eyes and the respiratory system, and a skin sensitiser. Systemic exposure to selenium could result from dermal contact. Users/workers handling the additive would be exposed to selenium by inhalation at levels which constitute a risk. The use of sodium selenite in animal nutrition up to the maximum authorised content in feed would not raise concerns to the soil compartment, the ground or surface water. Concerning the marine sediments, given the standard aquaculture practices and the low potential maximum concentration of selenium from fish feeds, any impact on the environment is unlikely.

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Effects of Dietary Form of Selenium on Its Distribution in Eggs

Cited by 25 publications

References 38 publications

Maternal transfer of contaminants in birds: Mercury and selenium concentrations in parents and their eggs

Maternal transfer of contaminants in birds: Mercury and selenium concentrations in parents and their eggs

Comparison of different forms of dietary selenium supplementation on gene expression of cytoplasmic thioredoxin reductase, selenoprotein P, and selenoprotein W in broilers

Safety and efficacy of selenium compounds (E8) as feed additives for all animal species: sodium selenite, based on a dossier submitted by Retorte GmbH Selenium Chemicals and Metals

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