New scientific challenges _ the possibilities of using selenium in poultry nutrition and impact on meat quality

59th International Meat Industry Conference

Markovi, R.^1 ; Glii, M.^1 ; Bokovi, M.^1 ; Balti, M..^1

University of Belgrade, Faculty of Veterinary Medicine, Bulevar oslobodenja 18, Belgrade, Serbia^1

关键词: Antioxidant capacity;    Broiler productions;    Fatty acid composition;    Glutathione peroxidase;    Physiological stress;    Production performance;    Selenomethionine;    Sodium selenite;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/85/1/012032/pdf
DOI  :  10.1088/1755-1315/85/1/012032

来源: IOP

【 摘 要 】

Physiological stress is one of many concerns facing modern broiler production. In conditions when birds are exposed to stress, supplementation of selenium, which is a crucial glutathione peroxidase enzymatic cofactor, increases the antioxidant capacity of the animals and decreases the harmful effects of free radicals. Dietary selenium improves production performance and health of animals, and positively affects the immune system, the quality, selenium content and fatty acid composition of meat and eggs. There are several different forms of selenium, the most common dietary supplements being an inorganic form (sodium selenite) and anorganic form (selenomethionine). However, in recent years, new forms of selenium, such as a 2-hydroxy-4-methylselenobutanoic acid (HMSeBA) and nanoselenium, which have more bioavailability, bioefficacy, and low toxicity have been designed. In this short comparative overview discusses the effects of inorganic, organic and nanoforms of selenium on production results, glutathione peroxidase activity, meat quality and level of toxicity in poultry.