关键词: 江南白鹅, 消化器官, 生长发育, 体重, 相关性

Abstract: To explore the characteristics of early growth and development of digestive organs of Jiangnan white geese, the growth and development of digestive organs of  Jiangnan White Geese and its correlation with body weight were studied by feeding experiment, which was expected to provide scientific feed preparation and feeding reference for Jiangnan White Goose and other medium-sized white geese. The results showed as follows: ① compared with the white geese at 9 weeks old, the length and weight of duodenum, jejunum and ileum at the age of 4 weeks were over 80%, and the length and weight of cecum was 69%, the weight of stomach and liver were 63% and  56%, respectively. The exponential growth rate of each digestive organ was the highest (over 66%) in the first week from 0 to 4 weeks. ② The length of duodenum and jejunum, the weight of jejunum and glandular stomach of Jiangnan White Geese at 4 weeks of age were significantly positively correlated with their body weight at 9 weeks of age（P＜005）, while other indexes were not significantly (P>0.05) correlated with their body weight. ③ During the whole growth period, the growth and development of digestive organs of Jiangnan White Geese were concentrated in the first 4 weeks, and the priorities were intestine, stomach and liver. The growth and development of digestive organs peak in the first week, and the speed was higher than that of body weight in the same period. The growth and development of jejunum in the early stage had the strongest correlation with body weight.

Key words: Jiangnan white geese, digestive organ, growth and development, body weight, correlation