Abstract
An experiment was conducted to determine the efficacy of an autogenous bacterin against infectious coryza from a local strain of Haemophilus paragallinarum in Morocco compared with a commercial vaccine. Hens were vaccinated with a single dose or two doses of the bacterin at 15 and 18 weeks of age. Both the autogenous and the commercial vaccine conferred significant protection against experimental challenge (94% and 88%, respectively). A single dose was less protective with both vaccines.
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References
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Mouahid, M., Bouzoubaa, K. & Zouagui, Z. Preparation and use of an autogenous bacterin against infectious coryza in chickens. Veterinary Research Communications 15, 413–419 (1991). https://doi.org/10.1007/BF00346536
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DOI: https://doi.org/10.1007/BF00346536