Xun, Wenjuan Effect of high-dose nano-selenium and selenium-yeast on feed digestibility, rumen fermentation, and purine derivatives in sheep. [electronic resource] - Biological trace element research Dec 2012 - 130-6 p. digital Publication Type: Comparative Study; Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't ISSN: 1559-0720 Standard No.: 10.1007/s12011-012-9452-3 doi Subjects--Topical Terms: Allantoin--metabolismAmmonia--analysisAnimal Feed--analysisAnimalsChinaCrosses, GeneticDietary SupplementsDigestionFatty Acids, Volatile--analysisFermentationGastrointestinal Contents--chemistryHydrogen-Ion ConcentrationMaleNanoparticles--administration & dosagePropionates--analysisPurines--metabolismRumen--metabolismSelenium--administration & dosageSheep, Domestic--growth & developmentYeast, Dried--administration & dosage