Abstract: Three crossbreed geese (LYLTB,LYB,LLYB) were selected to systematically study the growth development law and slaughter performance with Logistic model,Gompertz model and Von Bertallanffy model. All the geese were provided by National Waterfowl Germplasm Resource Pool (Jiangsu Taizhou).The results showed that the three models fitted well the growth-development of Sumu white geese. The fitting rates were over 0.99,the rate of Logistic model was the highest,but no significant difference between the models. According to the actual raising materials,the Logistic model was the best model to fit the growth of Sumu white geese,and could be used to establish the growth standard during the production. The growth rate of LLYB geese was the fastest,the body weight and measurement were faster than LYLYB and LYB geese according Logistic model estimated values. The meat performance of three hybrid combinations were all good,the slaughtered rates were over 83%,the eviscerated were rates over 68%. So LLYB geese was the best hybrid combination among three combinations,and growth rate was fastest(temporarily name: Sumu white geese).

Key words: Sumu white geese; growth curve; slaughter performance