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VIRUS VACCINE AGAINST INFECTIOUS LARYNGOTRACHEITIS IN POULTRY
VIRUS VACCINE AGAINST INFECTIOUS LARYNGOTRACHEITIS IN POULTRY
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机译:禽流感病毒疫苗对家禽的感染
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FIELD: veterinary virology, biotechnology. SUBSTANCE: the suggested virus vaccine contains virus-containing material out of attenuated "O" strain of poultry infectious laryngotracheitis virus and protective medium in efficient ratios. The strain in question is deposited in collection of microorganisms of VGNKI at registration name of "O N112- DEP". Virus should be reproduced in 9-11-d-aged embryos of SPF-hens at biological activity of not less than 6,0lg EID50/cu.cm. To obtain protective medium one should apply (either separately or in combination) saccharose, gelatose, lactose, etc. Virus vaccine is of high immunogenic activity; it is safe and reveals areactogenicity in case of ocular and oral ways of immunization. EFFECT: higher efficiency. 4 cl, 8 ex, 7 tbl
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