1Bouwstra R J, Nielen M, Newbold J R, etal. Vitamin E sup- plementation during the dry period in dairy cattle. Part II: Ox idative stress following vitamin E supplementation may in- crease clinical mastitis incidence postpartum [J]. J Dairy Sci, 2010, 93: 5696-5706.
2Kaufmann J A,Bickford P C,Taglialatela G. Free Radical-De- pendent Changes in Constitutive Nuclear Factor Kappa B in the Aged Hippocampus[J]. Neuroreport, 2002, 13: 1917-1920.
3Jomova K, Jenisova Z, Feszterova M, etal. Arsenic: toxici- ty, oxidative stress and human disease[J]. J Appl Toxicol, 2011, 31: 95-107.
4Mukherjee R. Selenium and vitamin E increases polymorpho nuclear cell phagoeytosis and antioxidant levels during acute mastiffs in riverine buffaloes[J]. Vet Res Commun, 2008, 32: 305-313.
5Halliwell B. Free radicals and antioxidants a personal view [J]. Nutr Rev, 1994, 52:253 267.