Cysteine improves boar sperm quality via glutathione biosynthesis during the liquid storage Selenium Fortified Nutritional Yeast: A Supplement to Support Male Fertility Explore Yeast Glutathione improves testicular spermatogenesis through inhibiting oxidative stress, mitochondrial damage, and apoptosis induced by copper deposition in mice with Wilson disease ScienceDirect The effects of varying concentrations of glutathione and trehalose in improving microscopic and oxidative stress parameters in Turkey semen during liquid storage at 5 C ScienceDirect