RESUMEN
Nodular cutaneous and diphtheric oral lesions, resembling avian pox were observed in 2 flocks of young ostrich chicks. Typical eosinophilic intracytoplasmic inclusion bodies were seen in histological sections and a pox virus was isolated from the lesions. A commercial fowl pox vaccine was used to protect young ostriches in the field.
Asunto(s)
Avipoxvirus/aislamiento & purificación , Enfermedades de las Aves/virología , Infecciones por Poxviridae/veterinaria , Animales , AvesRESUMEN
An outbreak of botulism in ostriches (Struthio camelus) is described. Some birds became totally paralysed, and many developed paresis and ataxia. Clostridium botulinum type C and its toxin were found in the remains of an ostrich carcass collected from the camp in which the birds were kept. Toxin could not be demonstrated in the serum of affected ostriches. Treatment with specific antitoxin resulted in total recovery of almost all the birds.
RESUMEN
An influenza A virus of the H7 N1 subtype was isolated from young ostriches which died after developing a syndrome characterized by a green discolouration of the urine, weakness and signs of respiratory distress. Mortality varied, depending on the age of the ostriches, the presence of other infectious agents and the amount of stress to which they were exposed. Using the haemagglutination inhibition test, an amnestic response was recorded in ostriches which recovered from the disease. Pathogenicity tests indicated that the isolate was of low virulence for chickens.
RESUMEN
A drop in egg production associated with loss of pigment and soft-shelled eggs was experienced on a farm in the Western Cape. Investigations revealed high levels of antibodies against adenovirus 127, the causative agent of egg drop syndrome (EDS) in chickens which were not vaccinated against EDS. A cytopathic agent was subsequently isolated in chicken embryo liver cell cultures and identified as EDS virus by haemagglutination inhibition and neutralization tests.
