Verschoor, J.A. (Jan Adrianus), 1953-; Bragg, R.R. (Robert Richard); Coetzee, L.; Verwoerd, Daniel Wynand
(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1996)
Infectious coryza remains an important disease in the poultry industry despite the long-term and widespread
use of vaccines against its causative agent, Haemophilus paragallinarum, in South Africa.
In order to detect ...