Abordagem clínica e terapêutica da falha na transferência de imunidade passiva em potros: relato de caso

Abstract

Introduction: Failure of passive transfer of immunity (FPTI) is an important cause of morbidity and mortality in neonatal foals and is associated with insufficient intake and/or inadequate absorption of immunoglobulins present in colostrum (NETO, 2018). This condition increases susceptibility to infectious diseases, negatively affecting neonatal survival prognosis. Objective: To report a clinical case of a neonatal foal treated in the municipality of Caturaí, Goiás, Brazil, presenting diarrhea, malnutrition, and progression to death, associated with suspected failure of passive transfer of immunity. Methodology: This study consists of a case report developed based on medical records, patient diagnosis, clinical progression, and therapeutic measures adopted. The animal underwent antibiotic therapy, fluid therapy, enemas, parenteral nutrition, and hyperimmune plasma transfusion. Development: The patient showed clinical deterioration despite the therapeutic interventions performed. It was observed that the dam had advanced age, low body condition score, and lack of an adequate health management protocol, factors capable of compromising colostrum quality and immunological transfer (BIANCONI, 2019). FPTI may increase the incidence of infections and worsen the patient's clinical prognosis. Conclusion: It is concluded that this case highlights the multifactorial nature of FPTI and emphasizes the importance of maternal nutritional management, vaccination of pregnant mares, and early neonatal monitoring as priority measures to reduce mortality in foals (ALVES, 2015).