Comparative study of a new organic selenium source v. seleno-yeast and mineral selenium sources on muscle selenium enrichment and selenium digestibility in broiler chickens

• Published in: British journal of nutrition 2013-08, Vol.110 (4), p.617-624
• Main Authors: Briens, Mickaël, Mercier, Yves, Rouffineau, Friedrich, Vacchina, Veronique, Geraert, Pierre-André
• Format: Article
• Language: English
• Subjects: Amino acids; Animal Feed; Animals; Antioxidants - metabolism; Bioavailability; Biological and medical sciences; Butyrates - pharmacokinetics; Butyrates - pharmacology; Chickens; Comparative studies; Diet; Feeding. Feeding behavior; Fundamental and applied biological sciences. Psychology; Metabolism and Metabolic Studies; Minerals; Muscles - drug effects; Organic chemicals; Oxidative Stress; Poultry; Selenium; Selenium - chemistry; Selenium Compounds - pharmacokinetics; Selenium Compounds - pharmacology; Selenomethionine - chemistry; Sodium Selenite - pharmacology; Speciation; Tissue Distribution; Vertebrates: anatomy and physiology, studies on body, several organs or systems; Yeast; Yeasts
• ISSN: 0007-1145; 1475-2662
• DOI: 10.1017/S0007114512005545

Two experiments were conducted on broiler chickens to compare the effect of a new organic Se source, 2-hydroxy-4-methylselenobutanoic acid (HMSeBA; SO), with two practical Se additives, sodium selenite (SS) and Se yeast (SY). The relative bioavailability of the different Se sources was compared on muscle (pectoralis major) total Se, selenomethionine (SeMet) and selenocysteine (SeCys) concentrations and apparent digestibility of total Se (ADSe). In the first experiment, from day (d) 0 to d21, Se sources were tested at different supplied levels and compared with an unsupplemented diet (NC). No significant effects were observed on growth performance during the experimental period. However, the different Se sources and levels improved muscle Se concentration compared with the NC, with a significant source effect in the following order: SS