Experimental atherosclerosis in goats. 
Varying degrees of aortic sudanophilia (5 to 75 per cent) comparable to human atherosclerotic lesions (fatty streaks/spots) developed in all nine experimental goats receiving 2 g of protected cholesterol daily for two, four and nine months.  From the fifth month onward, the serum cholesterol level stabilised at 450 to 525 mg 100 ml-1.  Aortic sudanophilia developed after two months but without any appreciable intimal thickening.  Pronounced intimal thickening with foam cells was seen after four to nine months.  The development of fatty streaks/spots was directly proportional to the degree of hypercholesterolaemia and duration of protected cholesterol feeding.  It was concluded that goats could be useful in comparative atherosclerosis research.