Diverse uses of feathers with emphasis on diagnosis of avian viral infections and vaccine virus monitoring

Revista Brasileira de Ciência Avícola

I Davidson¹ 

关键词: Avian influenza virus;    avian retroviruses;    infectious laryngotracheitis virus;    circoviruses;    chicken;    chicken anemia virus;    diagnosis of avian viral diseases;    environmental monitoring;    feathers;    fowlpox virus;    Marek's disease virus;    malformation of chick feathering;    stability of DNA viruses;    usage of feathers;   

DOI  :  10.1590/S1516-635X2009000300001

来源: SciELO

【 摘 要 】

The large amounts of feathers produced by the poultry industry, that is considered as a waste was explored for possible uses in various industries, such as meals for animals, biofuels, biodegradable plastic materials, combating water pollution and more. That review mentions these uses, but concentrate on the utilization of feathers for the diagnosis of viral infections and for monitoring vaccine viruses in chickens after vaccination. The viral diseases in which diagnosis using nucleic acids extracted from the feather shafts was described are, Marek's disease virus, circoviruses, chicken anemia virus, fowlpox virus, avian retroviruses, avian influenza virus and infectious laryngotracheitis virus. In two cases, of Marek's disease virus and of infectious laryngotracheitis virus, the differentiation of vaccine and wild-type viruses from feather shafts was made possible, thus allowing for monitoring the vaccination efficacy. The present review demonstrates also the stability of DNA viruses in feather shafts, and the possible evaluation of environmental dissemination of pathogens. When viruses are transmitted vertically, like in the cases of the retrovirus REV, a teratogenic effect on the development of feathers of the day-old newly hatched chick might occur in the case of avian influenza and the chicken anemia virus, which might indicate on a viral infection.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License