Oligosaccharide is mainly used as feed additives.

1. It promotes the reproduction of beneficial bacteria in the digestive tract of animals, inhibits the growth of harmful bacteria and improves the balance of microflora.

Because xylo-oligosaccharide will not be degraded by digestive enzymes and can carry pathogens through the intestinal tract, it can play a role in preventing pathogenic bacteria from colonizing the intestinal tract. Pathogenic bacteria cannot utilize mannan-oligosaccharide as an energy source for their growth, while beneficial bacteria such as Lactobacillus and Bifidobacterium can be activated by mannan-oligosaccharide. Therefore, oligosaccharides work indirectly through beneficial bacteria such as bifidobacteria.

At the same time, the metabolite short-chain fatty acids produced by the beneficial bacteria can stimulate intestinal peristalsis and shorten the retention time of the food waste in the intestines, thus reducing the toxicity of the harmful substances to the animal body.

2. Blocking the binding of pathogenic bacteria to host cell receptors.

Xylo-oligosaccharide can competitively combine with exogenous lectin on the surface of pathogenic cells, preventing pathogenic bacteria from adhering to the epithelium, and prompting them to be excreted with the feces, thus reducing the harm to animals. Oligosaccharide can also eliminate the harmful effects of toxins on the body through physical adsorption or direct binding of mycotoxins.

3. Stimulate the immune system of animal body and improve immunity.

Oligosaccharide can activate or promote the immune function of the body cells and body fluids, which is beneficial to the body from the invasion and damage of pathogenic microorganisms. Beneficial bacteria also have the role of activating the body's intracellular superoxide dismutase (SOD), catalase and glutathione peroxidase, prompting the production of antioxidants. Reduce the damage of free radicals. It plays a role in strengthening the body of animals. Oligosaccharides also have a role in activating the immune response. Because of the special polysaccharides derived from microorganisms have an adjuvant effect when added to the vaccine, the addition of appropriate amounts of oligo-xylan can also significantly improve the antibody response, thus strengthening the protective efficacy of the vaccine.

4. Enhance the ability of animals to resist diseases, reduce morbidity, and improve the effectiveness of prevention and treatment of animal diseases.

After 15 days of intake of xylo-oligosaccharide, the body can reduce about 45% of toxic fermentation products, and at the same time, it has a better inhibition of Escherichia coli and Salmonella, which can prevent diarrhea; Bifidobacterium fermentation of xylo-oligosaccharide produces a large number of short-chain fatty acids (acetic acid, lactic acid), which can stimulate intestinal peristalsis, increase the degree of wetness of the fecal matter and maintain a certain degree of osmolality, so as to prevent the occurrence of constipation.

5. Improve feed utilization and animal performance.

Bifidobacterium bifidum and lactobacillus and other beneficial bacteria in the animal's body can synthesize a variety of vitamins, such as niacin, folic acid, niacin, VB­­­­­1, VB2, VB6, and VB12, etc., to promote the body's absorption of proteins, calcium, iron, zinc and vitamin D, which has the effect of helping digestion and improving appetite.

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6. Reduce the pollution of the environment and improve the hygiene of the animal production environment.

Bifidobacterium and Lactobacillus and other beneficial bacteria secrete a variety of organic acids and antimicrobial substances, constitute a chemical barrier, so that the abnormal value-added spoilage bacteria to reduce, and greatly reduce the body of toxic products (histamine, putrescine, hydrogen sulfide, indole, nitrites, and classified and so on) of the production and absorption, and at the same time, beneficial bacteria can inhibit the activities of Escherichia coli, reversing the transformation of proteins to amines and ammonia, so that the intestinal feces and blood ammonia decline, and the discharged ammonia can be reduced. The ammonia in the intestinal feces and blood drops, and the amount of ammonia discharged also decreases. The excreted feces also contains a large number of active bacteria, which can utilize the remaining ammonia. Therefore, the addition of xylo-oligosaccharide can greatly reduce the odor of feces, improve the air quality in the house, reduce the internal stress and reduce the pollution of the environment.