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Effects of selenium source and level in diet on glutathione peroxidase activity, tissue selenium distribution, and growth performance in poultry

Published online by Cambridge University Press:  26 January 2019

Radmila Marković
Affiliation:
Department of Nutrition and Botany, Faculty of Veterinary Medicine, University of Belgrade, Belgrade 11000, Serbia
Jelena Ćirić*
Affiliation:
Department for Food Hygiene and Technology, Faculty of Veterinary Medicine, University of Belgrade, Belgrade 11000, Serbia
Marija Starčević
Affiliation:
Department for Food Hygiene and Technology, Faculty of Veterinary Medicine, University of Belgrade, Belgrade 11000, Serbia
Dragan Šefer
Affiliation:
Department of Nutrition and Botany, Faculty of Veterinary Medicine, University of Belgrade, Belgrade 11000, Serbia
Milan Ž. Baltić
Affiliation:
Department for Food Hygiene and Technology, Faculty of Veterinary Medicine, University of Belgrade, Belgrade 11000, Serbia
*
Author for correspondence: Jelena Ćirić, Department for Food Hygiene and Technology, Faculty of Veterinary Medicine, University of Belgrade, Belgrade 11000, Serbia. E-mail: 1310jecko@gmail.com

Abstract

Today, a few differing sources of selenium (Se), i.e. inorganic, organic, and nano forms of Se, are used as feed supplements for poultry. Published research indicates that nano-Se and organic Se possess comparable efficiency to inorganic Se in increasing GSH-Px activity of plasma and various tissues, but they deposit at higher rates in various tissues. However, there are principal differences in absorption mechanisms, metabolism, and efficiency of these three forms of Se. The aim of this review was to analyze the available literature on the effects of different Se sources and levels in the diet on glutathione peroxidase (GSH-Px) activity, tissue Se distribution and growth performance in poultry. Higher levels of Se increase GSH-Px activity in the body, but this reaches a plateau even if Se concentrations in diet increase further, while the deposition of Se in tissues increases as Se content in diet increases. In addition, many studies have shown the positive effects of adding Se to diet on growth performance in poultry. Optimal Se supplementation is necessary not only for good poultry health but also to ensure and preserve meat quality during storage and to provide human beings with this microelement.

Information

Type
Review Article
Copyright
Copyright © Cambridge University Press 2019 

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