The fecal lipid content and composition of ABCG5 and ABCG8 transgenic mice. Feces were collected from 9- to 10-week-old transgenic mice and their littermate controls (n = 10 in each group) for 3 days while they consumed a chow diet. The daily total fecal weight, neutral sterols, bile acids, and total fat were measured and expressed per 100 g body weight (BW). *P < 0.01, **P < 0.001.