engleski

Day old commercial chickens given La sota virus by ultrasonic nebulizer resist challenge with Herts 33 strain at day 42

Two experiments were conducted to prove that La Sota strain of Newcastle diesase (ND) virus given to day old commercial chicken by ultrasonic nebuliser SONOVAC 095 producing particles of 2- 5 microns in diameter, safely protect birds against challenge infection at 42 day of life. Chickens were exposed to aeroslo of water suspension of the commercial vaccine PESTIKAL for 30 and 300 seconds respectively, without any negative clinical reaction. Challenged at age of 21 and 42 days, they resist infection with Herts 33 strain of ND virus.

day old chicken; La Sota; Newcastle disease; vaccination; ultrasonic nebuliser

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