Abstract：Liver tissue was taken from Wanxi White Geese and Landaise Geese at 90days of age. The number of each breed is 20. The total RNA was extracted from liver to measure the abundance of the growth hormone receptor（GHR）, insulin like growth factor-1（IGF-1）and insulin like growth factor-1 receptor（IGF-1R）by Semi-quantitative RT-PCR using β-actin as an internal standard. Results show that the liver weight and liver index of Wanxi White Geese were significantly higher than in that of Landaise Geese（p<0.05）. IGF-1 mRNA expression was higher in Wanxi White Geese than that in Landaise Geese （p<0.01）. Significant positive correlation was found between body weight and liver weight（r=0.35, p<0.05）. The liver index with the expression of IGF-1mRNA in liver also had significant positive correlation（r=0.67, p<0.01）. The results suggest that, at 90 days of age, (1) The growth of liver was better in Wanxi White Geese than that in Landaise Geese; (2) the higher of liver wight of Wanxi White Geese could be the results of higher expression of IGF-1 mRNA in liver .
