Some people say that no chemical drug can replace the immune system, and chemical drugs can not be used to stimulate the immune system, otherwise it may cause various side effects. Since you can't use chemicals to boost your immune system, you can only rely on "nutrition."
The reason for restoring active immunity depends on nutrition for two reasons. First, insufficient nutrients, excessive or imbalanced nutrients in the diet can cause malnutrition in the pig body, causing nutritional metabolic diseases. Iron deficiency anemia is a typical example. Second, the immune system produces antibodies that require nutrients. When the critical nutrient supply is insufficient, antibody production will decrease, and the number of macrophages (primary non-specific immune cells) will decrease and macrophage will be weakened.
1. Selenium
Selenium is an essential trace element in humans and animals. The nutrition of selenium is mainly through the combination of proteins, especially enzymes, to exert antioxidant effects. Distribution of various organs and body fluids, the highest concentration in the kidney, is very important to improve immunity and prevent cancer. Selenium synergizes with other trace elements and vitamins, such as selenium and zinc, copper and vitamin E, vitamin C, vitamin A, carotene and other synergistic scavengers of oxidative damage - excessive free radicals, repairing liver damage Main substance. However, excessive use of selenium has a risk of toxicity. If the animal is exposed to high selenium for a long period of time, it will have symptoms such as dullness of the skin, numbness of the limbs, loss of appetite, rash, itchy skin, gastrointestinal dysfunction, indigestion, etc., so it should be strictly in accordance with regulations. Use amount.
2. Vitamin E
Vitamin E plays a huge role in eliminating free radicals, maintaining membrane structure and anti-oxidation. Vitamin E is also called a nutritive defense agent in the body, often used together with selenium preparations. When there is stress or disease in the body, free radicals will be produced. These free radicals will react with unsaturated lipids in the somatic membrane to induce lipid peroxidation, which will seriously damage the biofilm system and promote cell death. Accelerate the body's aging. The tocopherol, the main component of vitamin E, combines with excess free radicals to effectively scavenge free radicals and relieve oxidative damage.
Vitamin E also enhances the action of macrophages, thereby improving non-specific immunity. It can be said that vitamin E is one of the most important disease-resistant nutrition.
3. Vitamin C
Vitamin C is also a very important antioxidant. Protecting the body from the threat of free radicals, vitamin C is also a coenzyme. Vitamin C often has a synergistic effect with vitamin E because vitamin C protects vitamin E from oxidation in addition to its own antioxidant properties.
Vitamin C is widely used on farms and can be used almost everywhere in the treatment of all diagnosed or undiagnosed diseases. Proper addition of vitamin C to pig feed in summer helps to relieve heat stress. In addition, after supplementing a large amount of vitamin C in the body, it can alleviate the toxic effects of heavy metals such as lead, mercury, cadmium and arsenic on the body.
4. Mannan and dextran
Both of these substances are derived from the yeast cell wall and constitute the outer and inner walls of the yeast cell wall, respectively. In recent years, more and more studies have demonstrated the adsorption of mannan to mancotoxin and the stimulating effect of glucan on intestinal immunity. Although the adsorption of mannan is not as good as some montmorillonite type of mold remover, mannan has no risk of adsorbing nutrients due to different adsorption mechanisms.
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