摘要
利用Logistic、Gompertz、Bertalanfy和Cubic 4种非线性生长模型拟合狮头鹅、皖西白鹅和籽鹅3个大、中和小型地方鹅品种的1～11周龄平均体重，并对早期生长发育模型参数进行估计。结果表明：4种模型均能很好地拟合3个鹅品种的生长过程，拟合度均在0．99以上，但Gompertz模型更符合实际品种特性，为首选模型，由该模型估计狮头鹅、皖西白鹅和籽鹅生长的拐点时间分别为5．98、5．11和6．16周龄，相应的拐点体重分别为2115．77、1499．08和1049．62g。
Growth and development regularity and genetic parameters of average week bodyweight of local goose breeds of large, medium and small type from 1 week-old to 11 week-old were fitted with four non-lineared growth models, Logistic model, Gompertz model, Bertalanfy model and Cubics model. The results showed that growth process of three geese could be demonstrated very well by four models, and all indexes of fitness were very high （more than 0.99）. But Gompertz model was the best model because of its less bias of feed practice. The inflection age of growth were 5.98 weeks, 5.11 weeks and 6.16 weeks in Shitou goose, Wanxi white goose and Zi goose, respectively, and bodyweight at inflection age were 2 115.77, 1 499.08 and 1 409.62 g, respectively.
出处
《扬州大学学报（农业与生命科学版）》
CAS
CSCD
北大核心
2007年第3期47-50,共4页
Journal of Yangzhou University：Agricultural and Life Science Edition
基金
江苏省六大人才高峰项目(NY200612)
江苏省农业综合开发科技推广项目[苏农开科(2006)3号]
关键词
地方鹅品种
生长模型
生长发育规律
遗传参数
local goose
growth model
growth and development regularity
genetic parameters
