作者: P. F. Surai , N. H. C. Sparks , B. K. Speake
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摘要: For the majority of organisms on Earth, life without oxygen is impossible. Animals, plants and many microorganisms rely for efficient production energy. However, high concentration in atmosphere potentially toxic living organisms. Recently free radical research has generated valuable information further understanding not only detrimental, but also beneficial role radicals cell signaling other physiological processes. The benefit or harm ultimately depend level their efficiency antioxidant defence. During evolution, have developed specific protective mechanisms to deal with ROS. Therefore, presence natural antioxidants major factor that enables survival an oxygen-rich environment. compounds are located organelles, subcellular compartments extracellular space, enabling maximum cellular protection occur. Natural antioxidants, including vitamin E, Se carotenoids play important roles avian reproduction by maintaining defences spermatozoa embryonic tissues. Optimal supplementation shown be maintain productive reproductive performances commercial poultry. considered “chief-executive defence system”. Indeed, it integral part at least 25 selenoproteins expressed various tissues human animals. It been proven participates regulation functions animals growth, development, spermatogenesis development. most fascinating Se-related coming from a principal difference between sources diet. digestive system animals, birds, adapted metabolise organic plant-based feedstuffs during evolution. inclusion selenite selenate diet ‘natural’ situation differences assimilation, distribution accumulation source Se. A great body evidence indicates replacement sodium poultry Se, form Sel-Plex, can help meet optimal requirement increase fertility hatchability. _________________________________________________________________________________