152 research outputs found
Vaccines against infectious coryza
The paper reviews the literature on vaccines against infectious coryza of chickens. Our knowledge of natural immunity, antigens involved in protection and the degree of cross-serovar protection provided by vaccines is summarized. The effect of variables such as antigen dose, inactivating agent and adjuvant type on vaccine efficacy is reviewed. The protective ability of a new generation infectious coryza vaccine based on a live attenuated strain of Haemophilus paragallinarum is discusse
Genetic and antigenic studies on Haemophilus parasuis
Haemophilus parasuis, an organism dependent upon nicotinamide adenine dinucleotide (NAD) or V-factor for in-vitro growth, is the causative agent of porcine polyserositis and arthritis (Glasser's disease) (Nicolet, 1992). The principal lesions associated with this disease are fibrinous or serofibrinous meningitis, serositis, pleuritis, pericarditis, peritonitis and arthritis that can occur in various combinations or occasionally singly (Nicolet, 1992)
Identificação de Avibacterium paragallinarum em frangos de corte e poedeiras comerciais no Estado de Pernambuco
Diferenciação de sorotipos de Actinobacillus pleuropneumoniae pela combinação de dois PCR multiplex
Pasteurella multocida type A as the primary agent of pneumonia and septicaemia in pigs
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