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Living Vaccine of Fowl Laryngotracheitis

Living Vaccine of Fowl Laryngotracheitis
1) Ingredients and concentration: the product is prepared by inoculating SPF
chicken embryos with ITLV K317 strain, then harvesting infected embryo
choriallantois, mixing and grinding and adding suitable stabilizer followed by
lyophilization. Live virus concentration per dose &e;102.8EID50
2) Properties: the product appears light red spongiform and loose mass in
shape, is easily detached from vial wall and is solved rapidly after adding
3) The product is produced in the GMP environment with SPF chicken embryos
without any of the 19 foreign pathogenic microorganisms. The vaccine is
both pure and safe
4) The virus concentration is two times that of the national standard with sure
5) Functions and uses: it is suitable to chickens of 5 and more weeks old for
prevention of ILT with an immune period of 6 months
6) Application and dosage:
a) The product is diluted with sterile normal saline according to the vial label.
Each bird is dropped on eye with 1 drop (0.05ml) using a sterile dropper
b) Egg-layers must be inoculated first at 5 weeks old and reinoculated
just before egg-laying
c) Abnormal reaction: mild coughing may occur in few birds
7) Precautions:
a) The product is exclusively used to vaccinate healthy chickens
b) The product should be kept in dark and cool place and finished within
3 hours after dilution
c) The vaccine is limited to use only in epidemic area. It is not advisable to
use in flocks suffered from serious respiratory diseases, such as infectious
coryza, mycoplasma infection
d) Before and after vaccination, it is necessary to do a good job of
environmental hygiene management and disinfection in chicken houses,
in order to reduce bacteria density and eye infection
e) As for chicken flocks below 5 weeks old, it is advisable to do pilot experiment.
If there is no serious reaction, the vaccine can be used extensively. The
vaccine has a poor result for chicken below 5 weeks old; revaccination is
necessary 3 weeks after first vaccination
f) The vaccine should be emergently used in naturally infected flocks in order
to reduce losses
g) The used vaccine vials and utensils should be subjected to disinfection
treatment and are not allowed to dispose freely
8) Specifications: 100 doses/vial, 500 doses/vial, 1,000 doses/vial
9) Storage: it is effective for one year stored below -15&eg; C
Packing: 10 vials/box

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