Selenium in Poultry Nutrition: from Sodium Selenite to Organic Selenium Sources.
| Autor: | Surai PF; Department of Microbiology and Biochemistry, Faculty of Veterinary Medicine, Trakia University, Stara Zagora 6000, Bulgaria.; Moscow State Academy of Veterinary Medicine and Biotechnology named after K.I. Skryabin, Moscow, 109472, Russia.; Department of Animal Nutrition, Faculty of Agricultural and Environmental Sciences, Szent Istvan University, Gödöllo H-2103, Hungary., Kochish II; Moscow State Academy of Veterinary Medicine and Biotechnology named after K.I. Skryabin, Moscow, 109472, Russia., Fisinin VI; All-Russian Institute of Poultry Husbandry, Sergiev Posad, 141311, Russia., Velichko OA; Department of Ecology and Genetics, Tyumen State University, Tyumen, 625003, Russia. |
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| Jazyk: | angličtina |
| Zdroj: | The journal of poultry science [J Poult Sci] 2018; Vol. 55 (2), pp. 79-93. Date of Electronic Publication: 2017 Dec 25. |
| DOI: | 10.2141/jpsa.0170132 |
| Abstrakt: | Selenium (Se) is an essential element in poultry nutrition and its bio-efficacy depends on its chemical form. A growing body of research proves that organic forms of Se, mainly selenomethionine (SeMet), in poultry diets have a range of important advantages over traditional sodium selenite. In fact, the organic Se concept considers SeMet as a storage form of Se in the chicken body. As chickens are not able to synthesize SeMet, its provision through diet is a key strategy to fight commercially relevant stresses. Indeed, in stress conditions, when increased selenoprotein expression requires additional Se, while its provision via feed usually decreases due to a reduction in feed consumption, Se reserves in the body (mainly in the muscles) could help maintain an effective antioxidant defense and prevent detrimental consequences of stresses. The poultry industry is looking for the most effective sources of organic Se for commercial use. In this review, advantages and disadvantages of main organic Se sources for poultry (Se-yeast, SeMet, and OH-SeMet) are analyzed, and future directions for the development of new Se sources are identified. (2018 by Japan Poultry Science Association.) |
| Databáze: | MEDLINE |
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