Article
[Experimental vaccination of SPF chickens against Newcastle disease using the method of coated-millet vaccine from a thermotolerant variant of the LaSota virus].
Revue d'elevage et de medecine veterinaire des pays tropicaux - 1 Jan 1994
Nguyen-Ba-Vy
Abstract excerpt
The thermotolerant variant A300 of LaSota virus was used to vaccinate 4 week old specified pathogen-free (SPF) chickens by feeding them with virus coated-millet. With vaccine doses above 10(6)EID50/bird, HI antibodies developed and protection to challenge was seen 2 months after vaccination, while 100% mortality occurred in the control groups. The PD50 was estimated to 10(6.85) EID50. This lyophilized vaccine...
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