Coccidiose clínica na avicultura de corte: Relato de caso

Coccidiosis is a parasitic disease that affects chickens and is caused by protozoa of the genus Eimeria. This disease is highly prevalent in poultry farming and can cause significant economic losses due to its morbidity and mortality. The protozoan that causes coccidiosis inhabits the intestinal tract of chickens and reproduces in the epithelial cells, causing damage and lesions to the intestinal wall, which can cause high losses, severe impact on zootechnical performance, and can lead to susceptibility to other infections. Our objective was to report a clinical case of coccidiosis in an integration of broiler chickens with reported loss of flock performance starting at 28 days of age. In the report, necroscopic examination was chosen as the diagnostic method, finding changes and lesions in the intestinal mucosa that are very characteristic of Eimeria spp. As a curative treatment, bacitracin was used at 28 days and an anticoccidial drug based on sulfaquinoxaline was administered at 32 days. After the use of the anticoccidial, the birds recovered their weight gain rates. However, Eimeria acervulina spots were still observed in the birds' small intestines. It was concluded that prophylactic measures, including hygiene with ammonia-based products, adequate litter management between cycles and the judicious implementation of anticoccidial programs, as well as vaccination, are of great importance in the control of coccidiosis in industrial poultry farming. A coccidiose é uma doença parasitária que afeta os frangos, sendo causada por protozoários do gênero Eimeria. Essa doença é altamente prevalente na avicultura e pode causar significativas perdas econômicas devido à sua morbidade e mortalidade. O protozoário causador da coccidiose habita o trato intestinal nos frangos e se reproduz nas células epiteliais, causando danos e lesões na parede do intestino, podendo ocasionar elevados prejuízos, provocar severo impacto no desempenho zootécnico e pode levar a susceptibilidade à outras infecções. Objetivou-se relatar o caso clínico de coccidiose em uma integração de frangos de corte, no qual houve relato de perda de desempenho do lote a partir dos 28 dias de idade. No relato, optou-se como diagnóstico o exame necroscópico, encontrando alterações e lesões na mucosa intestinal, característico de Eimeria spp. Como tratamento curativo, foi adotado aos 28 dias o uso da bacitracina e aos 32 dias administração de anticoccidiano à base de sulfaxinoxalina. Após o uso do antico