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Asian Journal of Animal Sciences

Year: 2011 | Volume: 5 | Issue: 1 | Page No.: 64-70
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Authors

K.C. Sharadamma

B. Purushotham

P.M. Radhakrishna

P.M. Abhilekha

H.M. Vagdevi

Keywords

Balanced nutrition is a key element to ensure a happy and healthy life. Trace minerals are very essential nutrients in animal diet. Selenium, like the other trace minerals is necessary to sustain life of canines. Selenium is one of the critical nutritional factors for immune system along with zinc, vitamin E, vitamin B6 and linoleic acid. Adequate selenium is necessary for the normal functioning of the immune system and thyroid gland. Selenium is getting significant consideration for its role in various functions such as anticancer, joint health, skin and coat, immune resistance and antioxidant properties etc. Selenium forms the active center for selenoenzymes that carryout redox reactions such as glutathione peroxidase (GPx), thioredoxin reductase, thyroid hormone deiodinase and so on. Animal studies have shown a beneficial effect of selenium in the prevention of cancer. Selenium deficiency has become increasingly recognized as a practical problem in animal industry. Insufficient selenium intake can cause serious health problems, including Kashin-Beck disease in human beings, which is characterized by the degeneration of the articular cartilage between joints, thyroid disease and a variety of cancers. Selenium supplementation is required to overcome the deficiency symptoms and the bioavailability of the same depends upon the nature of supplements used. It is generally found that organoselenium compounds have substantially greater bioavailability than that of inorganic selenium.
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