5 results about "Infectivity" patented technology

The invention provides a traditional Chinese medicine microbial ecological agent for preventing and treating infectious bursal disease of chicken and a preparation method thereof. The preparation method comprises the following steps: adding water to radix isatidis, honeysuckle, forsythia, folium isatidis, humulus scandens, radix scutellariae, dangshen, ageratum, plantain, astragalus membranaceus, angelica sinensis and liquorice, boiling by using high heat, preserving heat for 30-60 minutes by using slow fire, cooling, filtering, collecting filtrate, adding white sugar, boiling, cooling to a normal temperature, then inoculating lactobacillus, zygosaccharomyces bailii and acetobacter xylinum, and fermenting for 3-7 days so as to obtain the microbial ecological agent. After the microbial ecological agent is diluted proportionally, the diluted microbial ecological agent is directly drunk by chicken. The traditional Chinese medicine microbial ecological agent provided by the invention has the effects of resisting viruses, inducing interferon, increasing the quantity of effective microbial communities in intestinal tracts, boosting immunity and improving disease resistance of chickens without toxic or side effects and the like; the preparation method is simple, convenient to use and high in viable bacteria content and has no residues. The traditional Chinese medicine microbial ecological agent provided by the invention has a certain curative effect on infectious bronchitis and henpox and relatively good market prospect.

The invention provides a preparation method of monoclonal antibodies for IC (nfectious coryza) of chickens. According to the technical scheme, hybridoma cell strains secreting the monoclonal antibodies against avibacterium paragallinarum are prepared from B type strains, the secreted antibodies are only targeted at the B type strains and do not have reactions with A type and C type avibacterium paragallinarum, and accordingly, the antibodies are only targeted at B type serotype diseases. Besides, an ELISA (enzyme-linked immunosorbent assay) method and an immune colloidal gold method established according to the characteristics of the monoclonal antibodies have good specificity and sensitivity and can be used for clinical detection. Besides, the monoclonal antibodies prepared with the method are high in titer, better in specificity and especially applicable to further preparation of B type avibacterium paragallinarum antigen diagnostic kits or B type avibacterium paragallinarum antigen diagnostic colloidal gold test paper. Prominent technical effects are realized through innovative technical improvements, and the preparation method is lower in cost and easy to implement and has prominent popularization prospect.

The invention discloses a Chinese painting ink with transparent ink marks, and a preparation method thereof. The Chinese painting ink with transparent ink marks is prepared from, by weight, 20 to 40 parts of Arabic gum, 15 to 50 parts of deionized water, 10 to 30 parts of a black pigment, 1 to 2 parts of a dispersant, and 0.2 to 0.5 part of a phthalate. The Chinese painting ink with transparent ink marks is capable of achieving natural dispersion effect of each painting stroke, compared with the conventional ink, the advantages are that: the stereo perception effect is better, the hierarchy effect is better, painting artwork infectivity and attractive force are improved.

The invention belongs to the field of veterinary drug technology, and specifically relates to a traditional Chinese medicine composition for treating chicken infectivity bursa of Fabricius. The traditional Chinese medicine composition is prepared by the following raw material drugs by weight: 3-30 parts of rhodiola rosea, 6-24 parts of herba epimedii, 3-12 parts of codonopsis pilosula, and 9-36 parts of folium isatidis. The traditional Chinese medicine composition is simple in the prescription, safe and effective, capable of avoiding the drug residue, ensuring the food security problem, and suitable for large-scale promotion in the animal production.