Marković Radmila, Ćirić Jelena, Starčević Marija, Šefer Dragan, Baltić Milan Ž
Department of Nutrition and Botany, Faculty of Veterinary Medicine,University of Belgrade,Belgrade 11000,Serbia.
Department for Food Hygiene and Technology,Faculty of Veterinary Medicine, University of Belgrade,Belgrade 11000,Serbia.
Anim Health Res Rev. 2018 Dec;19(2):166-176. doi: 10.1017/S1466252318000105.
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.
如今，几种不同的硒（Se）来源，即无机硒、有机硒和纳米硒形式，被用作家禽的饲料补充剂。已发表的研究表明，纳米硒和有机硒在提高血浆和各种组织的谷胱甘肽过氧化物酶（GSH-Px）活性方面与无机硒具有相当的效率，但它们在各种组织中的沉积率更高。然而，这三种形式的硒在吸收机制、代谢和效率方面存在主要差异。本综述的目的是分析现有文献中关于日粮中不同硒来源和水平对家禽谷胱甘肽过氧化物酶（GSH-Px）活性、组织硒分布和生长性能的影响。较高水平的硒会增加体内GSH-Px活性，但即使日粮中的硒浓度进一步增加，这也会达到一个平台期，而组织中硒的沉积会随着日粮中硒含量的增加而增加。此外，许多研究表明，在日粮中添加硒对家禽的生长性能有积极影响。最佳的硒补充不仅对家禽健康有益，而且对于确保和保持储存期间的肉质以及为人类提供这种微量元素都是必要的。
