Urachus anomaly in sheep: Incidence and considerations presented in neonatal lambs in the Peru

Over the years, an anomaly has been observed in newborn lambs, manifesting itself as a curvature in their posture and a slight dampness in the navel, known by the locals as "pupote". For this reason, the present study was carried out to document and present for the first time to the scientific community an anomaly of the urachus in sheep and its incidence. In the sampling process, five lambs who died of starvation were selected. The specimens were transported to the Animal Health Laboratory of the Faculty of Zootechnics of the National University of Central Peru. Radiographic analyses were carried out there. Then the incidence was found in the collected records. The incidence of the anomaly is an average of 0.825±0.09%. This case highlights the persistence of urachus in newborn lambs, evidenced by the identification of a ligament that establishes a connection between the umbilicus and the liver. Specifically, the ligament identified in the described anomalies corresponds to the ligamentum teres.