The Role of Selenium in Controlling Reproductive Disorder in Beef Cattle

Reproductive failure is regarded as a problem in the breeding of beef cattle indicated by low calving rate, conception longer periods interval, and neonatal mortality. Selenium deficiency may lead to non-infectious reproduction disorder ruminants. The purpose this review evaluate role selenium preventing cattle. In process, required for cellular respiration, oxidation, DNA RNA replication, integrity cells membrane, releasing free radicals. Selenocysteine (SeCys) main component selenoprotein consisting glutathione peroxidase (GPX) inhibit radicals formation reduce risks tissue damage. Glutathione peroxidases (GPXs) involved are: GPX-1 (cytosolic), GPX-2 (gastrointestinal specific), GPX-3 (plasma/extracellular), GPX-4 (phospholipid-hydroperoxides/intracellular) GPX-5 (spermatozoa mitochondrial capsule). an antioxidant potentially reducing fertility, stillbirth, abortus, premature cows based on oxidative stress deficiency. male cattle, maintain spermatozoa ejaculation. therefore affect motility, fusion oocytes due lipid peroxidation. It then factor reproductive mainly infertility Treatments could be conducted supplementing mineral mix, periodical dosing salt, providing Se-mineral block, combination vitamin E or supplementation soils improve quality fodder feeds.