3. Nano-tech is a key factor in conquering avian influenza

Seeing that so much selenium is needed in defense against viruses, why is selenium supplementation not more widespread?

This is partly due to the characteristics of selenium. Because the safe application range of selenium is very narrow and its dosage is very small in absolute terms, there is a danger of excessive use if not stirred evenly. In order to solve this problem, our country has first invented nano-selenium, the most significant advantage of which is lower toxicity and thus higher safety compared with other selenium compounds. This is without doubt very important for the popularization of selenium supplements.

The acute toxicity of nano-selenium is 7 times lower than that of inorganic selenium and 3 times lower than that of organic selenium. This is a large range of reduction because the gap between normal selenium intake and selenium deficiency in animals usually doesn’t exceed one time. The error of fodder stirring usually doesn’t exceed 2 times, and so the 3-7 times reduction of toxicity of nano-selenium will give us a safety guarantee for selenium supplementation.

After preparation, nano-selenium forms a hollow structure and has the effect of adsorbing and killing viruses and it has been called a trap for viruses. It is preferable to prepare the selenium in particles of between 30 and 130 nm, which is equal to the size of viruses.

Three methods are available for the industrial preparation of nano-selenium

Zero valence metal nano-selenium is prepared through reduction and modification of selenium, such as “Xiwang” produced by Shanghai Sitong Nano.

Another method is to reduce inorganic selenium added with vitamin-C to nano-selenium, which is very simple in operation.

The third are organic selenium nano-products, which are prepared by crushing selenium rich plants into nano-powder and can be entirely absorbed.

The conditions for industrial production of selenium rich nano-tea products are available in Qinhuangdao, Hebei Province. In Enshi of Hubei Province, Ziyang of Shanxi province, Fenggang of Guizhou Province and east Chongqing, the soil is the richest in selenium in China, and even in the world. Selenium in the soil can be converted by plants into organic selenium, which is highly bioavailable. The tea and other plants growing there contain a lot of selenium, especially in the winter. They can be cut, crushed and added into fodder, both safely and effectively, with a very small cost. In this way, the problem of the high cost of adding organic selenium into fodder can be solved.

The dosage of traditional selenium and nano-selenium added to the fodder of birds (calculated as per actual composition of selenium) is 0.2mg/kg to 0.4mg/kg during the growing period, 0.5mg/kg in the egg laying period and 0.8mg/kg as an anti-infection measure respectively. It can be seen that the selenium needed to increase immune function is much more than that required during the growing and egg laying period for birds.

As for the method of addition, the selenium preparation should first be crushed and added into pre-mixed materials, and then after stirred, added in proportion into daily fodder. The fodder can be given only after stirred evenly.

4. “Strategy of treating the cause” in the scientific treatment of avian influenza