The effects of feed supplementation with inorganic and organic forms of selenium (Se) on the
activities of blood glutathione peroxidase (GPx), superoxide dismutase (SOD) in erythrocytes as
well as on total antioxidant status in plasma (TAS) were examined in lambs. Fifteen animals were
divided into three groups and fed experimental diets for 3 months. The first group received the
basic diet (BD) providing a daily intake 50.6 μg of Se only. Diets for the second and third groups
consisted of BD supplemented with selenium 0.3 mg ∙ kg -1 of DM in the form of sodium selenite
or Se-enriched yeast and giving a total daily intake 278.6 μg of Se per animal. Increases in Se
concentrations in whole blood, plasma and red blood cells as well as in the activities of blood GPx
were highly significant in both supplemented groups, but no differences could be found that were
due to the form of Se administered. The activity of SOD in erythrocytes was found to be significantly
higher in the selenite group of lambs compared with both groups given BD or Se-yeast. The total
antioxidant status was significantly lower in the group given Se-yeast compared with animals on
BD, which might be explained by larger amounts of selenide continuously produced from body Se
deposits. The presented results support the opinion on the pro-oxidative features of sodium selenite
when it is utilized as an animal feedstuff additive.
CITATIONS(8):
1.
Effect of Enterococcus faecium AL41 and Thymus vulgaris essential oil on small intestine integrity and antioxidative status of laying hens I. Placha, M. Pogany Simonova, K. Cobanova, A. Laukova, S. Faix Research in Veterinary Science
Hydroxy-selenomethionine: A novel organic selenium source that improves antioxidant status and selenium concentrations in milk and plasma of mid-lactation dairy cows P. Sun, J. Wang, W. Liu, D.P. Bu, S.J. Liu, K.Z. Zhang Journal of Dairy Science
Output of selenium in milk, urine, and feces is proportional to selenium intake in dairy cows fed a total mixed ration supplemented with selenium yeast G.P. Walker, F.R. Dunshea, J.W. Heard, C.R. Stockdale, P.T. Doyle Journal of Dairy Science
Metabolic and hematological profiles in mature horses supplemented with different selenium sources and doses1,2 L. Calamari, F. Abeni, G. Bertin Journal of Animal Science
The effects of organic selenium supplementation on the rumen ciliate population in sheep K. Mihaliková, L’. Grešáková, K. Boldižárová, Š. Faix, L’. Leng, S. Kišidayová Folia Microbiologica
Organic selenium supplementation increases muscle selenium content in growing lambs compared to inorganic source F.A. Paiva, A.S. Netto, L.B. Corrêa, T.H. Silva, I.C.S.B. Guimarães, Claro Del, J.A. Cunha, M.A. Zanetti Small Ruminant Research
Effect of thyme essential oil and selenium on intestine integrity and antioxidant status of broilers I. Placha, J. Takacova, M. Ryzner, K. Cobanova, A. Laukova, V. Strompfova, K. Venglovska, S. Faix British Poultry Science
Hydroxy‐selenomethionine supplementation promotes the
in vitro
rumen fermentation of dairy cows by altering the relative abundance of rumen microorganisms Yuhui Zheng, Tengfei He, Tian Xie, Jidong Wang, Zhantao Yang, Xiaoge Sun, Wei Wang, Shengli Li Journal of Applied Microbiology
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