DISEASES IN COMMERCIAL POULTRY SYSTEMS:A BIBLIOGRAPHIC REVIEW
DOI:
https://doi.org/10.66104/xrwz0k56Keywords:
commercial poultry; avian diseases; biosecurity; animal health.Abstract
Commercial poultry farming in Brazil is one of the most important sectors of animal production, standing out for its economic and social impact. However, the productivity and sustainability of the sector are frequently affected by infectious diseases, which cause considerable losses in commercial farms. Between 2023 and 2026, highly pathogenic avian influenza (HPAI), Newcastle disease (ND), colibacillosis, coccidiosis, and viral respiratory infections such as metapneumovirus, coronavirus, and avian reovirus have been observed as the most relevant, due to their impact on production. Due to their high contagiousness and mortality rates, HPAI and ND require strict containment measures, quarantine, and epidemiological surveillance. Zootechnical performance is affected by bacterial and parasitic infections, such as colibacillosis and coccidiosis, which are generally associated with improper use of antibiotics, inadequate management, and adverse environmental conditions. Viral respiratory infections, often occurring as co-infections with opportunistic bacteria, worsen clinical signs and reduce productivity. Control strategies include specific vaccination, strict biosecurity measures, appropriate environmental management, continuous laboratory monitoring, and the judicious use of antimicrobials. The combination of these actions is essential to reduce disease incidence and minimize financial losses. This review shows that the success of Brazilian commercial poultry farming depends on multidimensional strategies that integrate prevention, active monitoring, proper management, and effective health policies. The adoption of integrated and sustainable health programs is essential to ensure bird health, increase productivity, and improve the competitiveness of the national poultry sector.
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Copyright (c) 2026 Akyton de Oliveira Santos, Ana Clara Ferreira Ribeiro, Elpídio Vitor Braga de Oliveira, Pedro Henrique de Souza Silva, Thalia da Silva Araujo, Antônio Carlos Silveira Gonçalves
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