0~10周龄扬州鹅肠道发育规律研究

本试验旨在探讨0~10周龄扬州鹅肠道的发育规律。选取189只1日龄扬州鹅仔鹅,随机分为7个重复,每个重复27只,通过饲养试验和屠宰试验研究扬州鹅肠道长度和肠道重量的发育规律。结果表明,扬州鹅肠道发育与体重发育趋势基本一致,扬州鹅1~4周生长迅速,4周龄左右达到增重高峰,4~7周日增重稳定在73 g/d左右,而肠道在6周龄时基本发育完善;随周龄的增加,肠道各段长度与肠道总长度的比值均无明显变化。该研究结果为扬州鹅的生产和资源开发提供理论依据。

Study on Intestinal Development Law of Yangzhou Geese from 0 to 10 Weeks

The study was carried out to investigate the intestinal development law of Yangzhou geese from 0 to 10 weeks.A total of 189 only one-day-old Yangzhou geese as the research object were randomly allocated into 7 replicates and each had 27 geese.Researched the development law of intestinal weight and length of Yangzhou geese by feeding and slaughtering experiments.The results showed that Yangzhou geese grow fast in 1 to 4 weeks and the ADG reached the peak at the fourth week or so,then stayed in a relatively steady level,73 g/d,between 4 to 7 weeks.Intestinal development was consistent with the trend of ADG and it was basic well development at the sixth week.The ratio of the intestinal paragraphs length to the total length had no significant influence in the period of feeding time.This study provided basic theory for the production and resource development of Yangzhou geese.