Research results on the effect of vitamin E supplementation on neutrophil function in dairy cows.
Type of cow Supplementation Response Ref. 3000 IU of vitamin E injected at 10 and 5 days before anticipated calving. The effects of vitamin E and selenium on acquired immunity in dairy cattle have not been studied extensively. In the few studies conducted. inconsistent responses have been reported. Surveys have found that in well-managed dairy herds, approximately 50 cases of clinical mastitis can be expected per 100 cows annually.