1. A vaccine composition adapted for ophthalmic administration to bird species, comprising one or more vaccines and an effective adjuvant amount of chitosan to immunize said bird species. ! 2. The vaccine composition according to claim 1, which is administered by eye drops, spray or aerosol. ! 3. The vaccine according to claim 1 or 2, where the effective amount of chitosan and vaccines are administered separately or simultaneously. ! 4. The vaccine according to claim 3, where chitosan and the vaccine are administered to species of birds sequentially through eye drops, spray or aerosol, and chitosan is administered before or after the vaccine. ! 5. The vaccine according to claim 1 or 2, where the vaccine is a virus, or a bacterium, or a parasite. ! 6. The vaccine composition according to claim 1 or 2, wherein the vaccine is a live attenuated microorganism, a killed inactivated microorganism, a recombinant microorganism, or a whole attenuated or inactivated microorganism, or a recombinant microorganism, its subunits, or a combination thereof. ! 7. The vaccine composition according to claim 5, where the vaccine is obtained from a virus responsible for common bird diseases such as smallpox, Newcastle disease, infectious bronchitis, lymphoid leukemia, Marek’s disease, infectious bursal disease, infectious laryngotracheitis, reovirosis, infectious tenosynovitis, bird encephalomyelitis, "swollen head syndrome", turkey rhinotracheitis or bird flu, or from the bacterium responsible for mycoplasmosis, pasteurellosis, salmonellosis, bordetellosis, and / or from another parasite responsible for coccidiosis, campylobacteriosis. ! 8. The vaccine composition according to claim 1 or 2, where the species of birds are agricultural bred1. Вакцинная композиция, адаптированная для глазного введения видам птиц, содержащая одну или более вакцин и эффективное адъювантное количество хитозана для иммунизации указанных видов птиц. ! 2. Вакцинная композиция по п.1, которая вводится посредство
