Published in Scientific Works. Series C. Veterinary Medicine, Vol. LXX, Issue 2
Written by Andrei Gabriel CĂPRIȚĂ, Denise Maria DINA, Mihai MĂCINIC, Doina DANEŞ
Young Pigeon Disease Syndrome (YPDS) is a multifactorial condition that poses a significant health challenge to young pigeons, particularly those between the ages of 3 and 12 weeks post-weaning. In rare cases, it can also affect older pigeons. This syndrome is characterized by high morbidity and mortality, leading to considerable losses in the pigeon
breeding and racing industries. The primary viral agent responsible for YPDS is pigeon circovirus (PiCV), known for its immunosuppressive effects, which increase susceptibility to secondary infections caused by Escherichia coli and other opportunistic pathogens like Candida albicans and Trichomonas gallinae. Additionally, pigeon aviadenovirus
(PiAdV) and Columbid herpesvirus-1 (CoHV-1) are associated with the syndrome, contributing to its complex pathogenesis. Clinical signs of YPDS are non-specific and include lethargy, weight loss, vomiting, diarrhoea, and
respiratory distress. The disease is most severe in juvenile pigeons, with rapid progression often leading to death within
3 to 5 days, while adult birds that develop clinical signs may take up to 8 days to die.
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