Investigation of the selenium status and activity of the antioxidant system in the Romanov sheep in the north-western region

The extension of the characteristics of the cattle ration is widely spread nowadays. One of the most significant nutritional element is selenium. Selenium has antioxidant function because it is a necessary part of the antioxidant enzyme glutathione peroxidase. There is a deficiency of selenium on the large territories of Russian Federation, especially on North-Western region. The selenium deficiency is the reason of different metabolic diseases and stiff lamb disease. All of the aforesaid leads to production loss. In this article it is firstly reported about selenium status, biochemistry characteristics and their variations after treatment selenium -containing drug among Romanov sheep in north-western region. In the course of study was found that selenium concertation in sheep serum was lower than normal. The selenium drug administration was led to an increase of serum selenium concertation.