四川农业大学学报 ›› 1998, Vol. 16 ›› Issue (04): 456-458.doi: 10.16036/j.issn.1000-2650.1998.04.014

• 研究快报 • 上一篇    下一篇

四川白鹅羽绒生长及其影响因素的研究

刘桂琼, 曾凡同, 邱祥聘   

  1. 四川农业大学动物科技学院, 雅安市 625014
  • 收稿日期:1998-06-25 出版日期:1998-12-31 发布日期:2017-04-21

STUDY ON THE GROWTH OF DOWN IN GEESE

Liu Guiqiong, Zeng Fantong, Qiu Xiangpin   

  1. College of Animal Scieuce and Technology, Sichuan Agricultural University, Yaan, Sichuan, China 625014
  • Received:1998-06-25 Online:1998-12-31 Published:2017-04-21

摘要: 试验测定了四川白鹅9~17周龄的生长资料,用Gompertz模型拟合了绒朵长度和千朵重的生长过程,比较了5个部位(胸部、腹部、背部、颈部和腿部)与性别间的差异。结果表明,绒羽生长呈"S"型曲线变化,Gompertz模型拟合度较高,绒羽绒朵长的拐点在4周龄,千朵重的拐点在10周龄。绒羽绒朵长、千朵重和绒羽重在14周龄后无显著增加,表明在14周龄时已可以进行第一次人工拔羽。公鹅绒羽的生长优于母鹅。胸部、腹部、背部是鹅主要的产绒部位。

关键词: 四川白鹅, 绒羽, 生长

Abstract: Fifty six heads of Sichuan White geese (half male and half female) and its hybrids were used to study the growth of their downs in five parts including breast, abdomen, back, neck and legs. The results show as follows:⑴The downs of female geese grow faster than those of the male geese; ⑵The five parts of body (except necks and legs) are important for producing downs; ⑶The day of downs growth inflection point is at the age of 4 weeks and that of weight of one thousand downs is at the age of 10 weeks; ⑷The downs in geese increade little after the age of 14 weeks.

Key words: SICHUAN WHITE GEESE, DOWN, GROWTH

中图分类号: 

  • S835.1