摘要This study investigated the impacts of feeding different lipid sources on raw goose foie gras quality characteristics.A total of 1080 Landes geese at 60 d old with body weight 3.87±0.13 kg(mean±SEM)were randomly assigned to three treatments:a corn meal-based diet with 25 g/kg soybean oil,with 25 g/kg goose fat,or with 15 g/kg goose fat plus 10 g/kg soybean oil(MIX).Each treatment was split into 15 pens with 24 geese in each pen.The experiment lasted 30 d,and the daily consumption of the over-feeding diets was recorded.Results showed that geese from MIX had a higher feed consumption(P＜0.001),raw foie gras weight(P=0.025)as well as serum concentration of high-density lipoprotein-cholesterol(P=0.012)compared with other treatments.The raw foie gras produced with MIX also had higher contents of monounsaturated fatty acids(P=0.039),essential amino acids(P＜0.001)and non-essential amino acids(P＜0.001)compared with those of geese fed soybean oil.In addition,MIX pro-moted the daily retention of dietary C14:0(P=0.018),C16:0(P=0.045),C18:0(P=0.023),C18:1n9c(P=0.025),C18:2n6c(P=0.029)and C18:3n6(P=0.032).Furthermore,MIX upregulated the relative gene expression of stearoyl-CoA desaturase(P=0.002),fatty acid synthetase(P＜0.001),acyl-CoA:cholesterol acyltransferase 2(P＜0.001)and elongation of very long-chain fatty acids protein 1(P＜0.001)in the fattened liver.In conclusion,including 15 g/kg goose fat mixed with 10 g/kg soybean oil in diets was beneficial to improve the quality characteristics of raw Landes goose foie gras.