«AVIVAC-IBD» strain AN

About the product

«AVIVAC-IBD» is a live dry vaccine against infectious bursal disease based on virus strain AN.

The vaccine is prepared from extraembryonic fluid, homogenized carcasses and chorioallantoic membranes of SPF chicken embryos infected with infectious bursal disease virus strain “AN”. The vaccine has the appearance of a homogenous dry pinkish brown porous substance that easily dissolves in water without forming flakes or sediment. The vaccine is available in hermetically sealed vials containing 100 to 5000 doses of the product.

Biological properties

One immunizing dose of the vaccine contains 3,0 lg EID₅₀/cm³ infectious bursal disease virus. Immunity in vaccinated chickens forms over a period of 2 to 3 weeks after double vaccination and lasts 6 months.
The vaccine is innocuous and non-reactogenic; it possesses no therapeutic properties.

Indications for use

Only clinically healthy birds should be subject to vaccination. The vaccine is administered via drinking water to 7- to 21-day-old chickens twice at an interval of 10 to 14 days. The time of the first round of vaccination is chosen on the basis of maternal antibody levels in the birds’ blood serum.

The robustness of immunity to IBD is evaluated 14 to 21 days post vaccination by way of performing serological testing (virus neutralization assay, gel diffusion precipitation test, ELISA) using diagnostic kits licensed for use in Russian Federation.

Vaccination is considered successful if not less than 80% of the immunized chickens demonstrate mean antibody titres against infectious bursal disease virus exceeding the minimum threshold value specified by the manufacturer of the kit by 100% or more.

If antibody titres fall below this level, re-vaccination must be conducted.

Storage requirements

The shelf life of the vaccine is 12 months from the date of manufacture if stored and transported in a dark dry place at a temperature between +2 and +10°С.