Effects of selenium depletion and selenium repletion by choice feeding on selenium status of young and old laying hens

Zuberbuehler, Christine A.; Messikommer, Ruth E.; Arnold, Myrtha; Forrer, R; Wenk, C.

doi:10.1016/j.physbeh.2005.11.007

Cited by 34 publications

(19 citation statements)

References 46 publications

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“…The larger body retention of Se from SY than from SS was demonstrated also in our previous experiments in poultry [13,43]. It has been shown that SeMet deposited in body tissues has the potential to serve as quantitatively important Se storage capable of releasing Se in case of insufficient supply of dietary Se [44].…”

Section: Discussionsupporting

confidence: 73%

Effects of Dietary Form of Selenium on Its Distribution in Eggs

Čobanová

Petrovič

Mellen

et al. 2011

Biol Trace Elem Res

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The objective of this experiment was to investigate the selenium distribution in eggs from hens fed diets supplemented with Se from sodium selenite (SS) or selenium-enriched yeast (SY). One-day-old female chickens of Hy-Line Brown breed were randomly divided into four groups according to dietary treatments and, for the subsequent 9 months, were fed diets which differed only in the form or amount of Se supplemented. During the whole experiment, group 1 (control) was fed basal diet (BD) with only background Se level of 0.13 mg/kg dry matter (DM). Diets for groups 2 and 3 consisted of BD supplemented with an Se dose of 0.4 mg/kg DM either in the form of SS or SY, respectively. Group 4 was fed BD supplemented with 0.9 mg Se/kg DM from SY. After 9 months of dietary treatments, the Se levels in egg yolk and albumen from hens fed unsupplemented diet were almost identical whereas eggs from hens given diet supplemented with SS showed significantly higher Se deposition in yolk than in albumen (P < 0.01). On the other hand, the feed supplementation with Se doses 0.4 or 0.9 mg/kg DM from SY resulted in significantly higher Se concentration in albumen than in yolk (both P < 0.001). The total Se amounts in whole eggs from hens in groups 1, 2, 3 and 4 were 5.1, 14.4, 22.7 and 31.6 μg Se/egg thus demonstrating the significantly higher (P < 0.001) selenium deposition in eggs from hens given feed enriched with SY than from birds fed diet with equivalent SS dose. Regardless of dose and source, the selenium supplementation to feeds for groups 2, 3 and 4 resulted in significantly increased α-tocopherol concentration in egg yolk compared to control group 1 (P < 0.001). The presented results demonstrate the different pattern of Se distribution in egg mass when laying hens are fed diets supplemented with inorganic or organic selenium sources.

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Section: Discussionsupporting

confidence: 73%

Effects of Dietary Form of Selenium on Its Distribution in Eggs

Čobanová

Petrovič

Mellen

et al. 2011

Biol Trace Elem Res

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“…In another experiment (Zuberbuehler et al 2006), an increase in the Se content of hen diets had no effect on vitamin E concentrations and the activity levels of aspartate aminotransferase and creatine kinase in serum. Perhaps it was due to the large increase in the concentration of Se, 0.15 to 1.45 mg/kg, resulting in increased activity of selenium-dependent enzymes.…”

Section: Discussionmentioning

confidence: 88%

The effect of different dietary levels of vitamin E and selenium on antioxidant status and immunological markers in serum of laying hens

Zduńczyk¹,

Drażbo²,

Jankowski³

et al. 2013

Polish Journal of Veterinary Sciences

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The effect of different dietary levels of selenium (Se) and vitamin E on egg production, the antioxidant status and the immune system response of hens was investigated in the current study. A total of 32 Lohman Brown hens were divided into four groups and were fed diets with 5% of soybean oil and two levels of Se (0.15 and 0.30 mg/kg) and vitamin E (30 and 60 mg/kg). During 10 weeks of experimental feeding, the body weights of hens and egg production were similar in all dietary treatments, but a higher Se content of diets contributed to a significant increase in egg weight. A higher vitamin E level significantly increased α-tocopherol concentrations (2.71 vs. 2.05 μg/mL, p = 0.001), superoxide dismutase (SOD) activity (43.3 vs. 39.9 U/mL, p = 0.049) and the ferric reducing ability of serum (FRAP) (123.0 vs. 105.7 μmol/L, p = 0.029). A higher Se content increased the concentrations of ascorbic acid (0.309 vs. 0.073 μg/L, p = 0.001), retinol (1.48 vs. 1.15 μg/mL, p = 0.001) and α-tocopherol (2.86 vs. 1.90 μg/mL, p = 0.001), the activity levels of catalase (3.40 vs. 2.98 U/L, p = 0.010) and SOD (43.4 vs. 30.8 U/mL, p = 0.040) as well as the total antioxidant status (TAS) of serum (0.38 vs. 0.28 mmol/L, p = 0.026). There were no significant differences in the concentrations of tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) between treatments, while a higher vitamin E content of diets increased serum immunoglobulin A (IgA) concentrations (370.6 vs. 321.3 μg/mL, p = 0.026). Higher dietary levels of vitamin E and Se increased the serum concentrations of retinol (1.66 vs. 2.20 μg/mL, p = 0.013) and α-tocopherol (3.33 vs. 1.71, p = 0.014), but they had no effect on the other physiological parameters. It is recommended that the levels of both supplements, Se and vitamin E, be increased in laying hen diets as they have a beneficial effect on the serum concentrations of retinol and α -tocopherol.

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“…Taken altogether it means the substantially larger formation of Se body deposits from selenized yeast than from selenite. The possible benefits of SeMet deposited in body tissues is that it may serve as quantitatively important storage capable of releasing Se during episodes of insufficient dietary selenium supply (Zuberbuehler et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

“…The best understood selenoenzyme appears to be cytosolic glutathione peroxidase (cGPx) which works as an antioxidant by removing hydrogen peroxides and organic hydroperoxides (Behne and Kyriakopoulos, 2001). Adequate intake of bioavailable forms of selenium is therefore critical for maintaining the appropriate Se and antioxidant status of animals (Pavlata et al, 2001;Zuberbuehler et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Antioxidant and selenium status of laying hens fed with diets supplemented with selenite or Se-yeast

Petrovič¹,

Boldižárová²,

Faix³

et al. 2006

J. Anim. Feed Sci.

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The experiment was designed to investigate the effects of feed supplementation with selenite or selenized yeast on parameters of antioxidant and selenium status of laying hens.Hens of laying breed Shaver Starcross 288 were randomly divided at the day of hatching into 4 groups and fed for 9 months on diets which differed only in amounts or forms of selenium supplemented. Group 1 was fed the basal diet (BD) with native Se content 0.1 mg . kg -1 DM. Groups 2 and 3 were fed the BD diets supplemented with equivalent Se dose 0.4 mg . kg -1 DM of either sodium selenite or Se-yeast, respectively. The diet for group 4 was supplemented with Se-yeast at Se dose 0.9 mg . kg -1 DM. The activities of glutathione peroxidase (GPx) in blood and tissues of liver, kidney and duodenal mucosa were significantly increased by Se supplementation, but no differences due to form or dose of Se were observed. Both Se sources resulted in significant reduction of superoxide dismutase (SOD) activity in erythrocytes. Malondialdehyde (MDA) content in kidney tissue was reduced by both Se sources, but its production in liver tissue was inhibited by Se-yeast only. Selenium supplementation did not influence the levels of MDA and -SH groups in plasma. Altrough both Se significantly raised Se concentrations in blood and tissues of liver, kidney, spleen, hearth and duodenal mucosa, significant Se deposition into muscles appeared in hens given Se-yeast only. The presented results suggest that Se-yeast is more effective in maintenance of antioxidant and selenium status of laying hens than selenite.

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Effects of selenium depletion and selenium repletion by choice feeding on selenium status of young and old laying hens

Cited by 34 publications

References 46 publications

Effects of Dietary Form of Selenium on Its Distribution in Eggs

Effects of Dietary Form of Selenium on Its Distribution in Eggs

The effect of different dietary levels of vitamin E and selenium on antioxidant status and immunological markers in serum of laying hens

Antioxidant and selenium status of laying hens fed with diets supplemented with selenite or Se-yeast

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