IMMUNE RESPONSE OF BALI DUCK POST VACCINATION AGAINST NEWCASTLE DISEASE
Abstract
The purpose of this research was to know immune response of local bali duck post vaccination against Newcastle Disease, as well as the time required to form protective antibody titer. The research used completely randomized design with time as a treatment. The object of research was the serum of local bali duck. Blood was taken when pre-vaccination was done at aged three weeks old of the local Bali ducks, and then at the aged of four weeks old, vaccination was done subcutaneously. Post vaccination blood collection was performed four times in every oneweek intervals. The blood was taken from the cranial tibial vein by using 1 cc syringe. The serum was transferred to the Eppendorf tube. Then the antibody against Newcastle Disease titers were tested by using Hemaglutination inhibition (HI) test and expressed in Geometric Mean Titer (GMT) with units of Log 2. Antibody titer examination pre-vaccination was 0.83±0.408 Log 2. The mean of antibody titer at the first, second, third, and fourth week were 2±0.632 Log 2, 5.5±1.225 Log 2, 1.2±0.983 Log 2, dan 0.16±0.408 Log 2 respectively. The highest titer as well as was protective of the were reached in the second week post vaccination.
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References
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