Everyone knows that due to the abuse of antibiotics, the problem of immunosuppression on pig farms is getting worse. And everyone began to gradually recognize the danger of the problem. Under this environment, various kinds of immunopotentiators on the market have emerged in large numbers.
The most representative one should be regarded as Astragalus Polysaccharide! Almost every veterinary drug factory has Astragalus polysaccharides. Among them, excellent products are not lacking. For example, the Jianli source of Hunan Agricultural University Pharmaceuticals, the composition of the compound, has always been the first product to sell in the polysaccharides of Astragalus; and the quercetin of Beijing Biotel, which is known as domestic The only company that has the legal approval number of Astragalus Polysaccharide Powder. In any case, the effect of Astragalus polysaccharides in pig production is generally recognized by everyone, and it is becoming more and more common in the usual feed. But we all know that after a drug has been used for a long time, pigs will depend on the drug, and we should use other products instead of a period of time. In fact, there are many kinds of immunoenhancers, no less than a dozen kinds of hundreds of species. At this time, our farms can consider using other immune enhancers to temporarily replace the Astragalus polysaccharides.
The immune enhancers specifically have the following classifications:
Minerals , such as selenium, zinc, etc.; vitamins, such as VA, VE, VC, etc.; amino acids, such as arginine, leucine, etc.;
Chinese herbal medicines , such as astragalus, echinacea, etc.;
Plant polysaccharides , such as Astragalus polysaccharide, lentinan, seaweed polysaccharide, ganoderma lucidum polysaccharide, Polyporus polysaccharide, chitosan, etc.;
Oligosaccharides , such as mannooligosaccharides, fructooligosaccharides, etc.;
Microbial preparations , such as BCG, vaccine, Corynebacterium parvum vaccine, lactic acid bacteria, cholera toxin B subunit, Mycobacterium phlei, Mo (cell wall two skin), , etc.;
Immune adjuvants , such as aluminum adjuvant, propolis, liposome adjuvant, Freund's adjuvant, etc.;
Hormone or hormone-like substances (biological factors) , such as growth hormone, thymosin, metallothionein, thymosin, etc.;
Nucleic acid preparations , such as polynucleotides, double-stranded polynucleotides, immune ribonucleic acids, etc.;
drugs , such as levamisole, metronidazole, etc.;
Bacterial extracts , such as β-glucan, peptidoglycan, lipopolysaccharide, etc.;
Chemical synthesis , such as levamisole, cimetidine, rimitidine, new houttuyfonate, imiquimod, pidotimod, dithiocarbamate, isopropionin, azimuth , nucleosides, etc.;
Biologics (cytokines) , such as interferon, transfer factor, interleukin, immunoglobulin, etc.;
Others , such as bee pollen, bursa extract, gamma globulin, heat shock protein, poly-cells, glycyrrhizin, protein polypeptides, and the like.
When you choose, on the one hand, you should screen more immune enhancers with broad sources, high efficiency, low cost, no pollution and side effects, and better evaluate their immune activity in the body. On the other hand, you should pay attention to their use. Security issue.
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