In a nearly two-year-old ram, descending from a breeding trial to investigate 
the effects of shortness of the lower jaw (brachygnathia inferior), a congenital 
cardiac anomaly was observed. At the age often months the affected animal, a 
cross breed of Cameroon Sheep and East Friesian Milk Sheep, showed 
exercise-induced respiratory distress for the first time. Auscultation revealed 
a loud systolic heart murmur (grade 5) on both sides of the thorax, most 
prominent over the left third intercostal space at shoulder height. Postmortem 
examination of the ram's heart showed a pentalogy of Fallot, consisting of a 
pulmonic stenosis, a ventricular septal defect, an overriding aorta, a right 
ventricular hypertrophy and a patent foramen ovale. A genetic defect has to be 
considered as a possible reason.