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Chicken anemia caused by circoviruses has been a vital economical and sanitary problem in poultry breeding in recent years. The aim of the investigation was to establish the prevalence of CAV in breeding flocks of meat poultry and slaughter chickens. The examinations were done on 25 reproductive farms of meat poultry (from 12 days to 60 weeks old) and on 39 farms of slaughter chickens aged from 3...
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