Abstract: This research adopted the experimental design method of the single factor, randomly deviding 450 ten-week Landes geese into 3 groups, which were raised well in the same batch with similar weight. The first group was control group, others were testing group(each of them contained 50 geese with 3 repetitions). In addition to overfeed, 2% of goose oil(group 1), 2% of bean oil(group 2) and 2% of corn oil(group 3) were added into. The effect of differential fat sources on liver production and blood biochemical indices of Landes geese was investigated after three weeks of overfeed. The results of the test were as follows,the liver weight and the liver weight/body weight of the group 1 and group 2, group 3 were significantly increaseed(P<0.05),but group 2 and group 3 were not significant (P＞0.05);the feed intake/liver weight of group 2 and group 3 were lower than group 1,but the difference were not significant(P＞0.05). The effect of differential fat sources on TG,CHOL,HDL and LDL of the Landes’blood were not significant. After force-feeding, the concentration increased 2 to 4 times than before force-feeding.The concentration of LDL,TG and CHOL increased significantly,but every group was keeping stable.

Key words: fat sources; Landes geese; liver production; blood biochemical indices