Parasitism of Nelore (Bos indicus) calf from northern Brazil by Ctenocephalides felis
2022
Paz, Karla Cristina Resplandes da Costa | Severino-Neto, Antônio Carlos | Germano, Gabriel Lopes | Nogueira, Isadora Gomes | Vieira, Guilherme Freitas Arrebola | Palhares, Ana Cecília Campos | Braga, Ísis Assis | Saturnino, Klaus Casaro | Pacheco, Richard de Campos | Ramos, Dirceu Guilherme de Souza
Ctenocephalides felis is the most common hematophagous ectoparasite of domestic cats and dogs worldwide, causing allergic dermatitis, anemia, itching, discomfort, and it is responsible for the transmission of many pathogens. In cattle, parasitism is not common but occurs due to the high adaptability of this flea species. This study aimed to report infestation of a Nellore (Bos indicus) calf from Northern Brazil by C. felis and its clinical findings. A 45 kg male calf presented diarrhea, progressive emaciation after 50 days of birth, and flea infestation. Anemia was observed (4.11 × 10⁶/μL of erythrocytes; 20.48% of hematocrit). Coproparasitological examination and molecularly detection of Anaplasma spp. and Babesia spp. indicated negatively. Fleas were collected and taxonomically identified as C. felis. Clinical manifestations of this ectoparasite in cattle were unspecific; however, they can develop severe conditions, such as restlessness and weakness, accompanied by alopecia, emaciation, anemia, and edema of the lower limbs with intense itching and self-excoriation.
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