三个不同品系不同性别高邮鸭生长曲线的拟合和分析  

Fitting and analysis of growth curves for different genders of Gaoyou ducks from three different lines

作　　者：王聪[1] 赵南南[1] 陈明亮[1] 吕璐[1] 张汤杰[1] 

机构地区：[1]扬州大学兽医学院,江苏扬州225009

出　　处：《黑龙江畜牧兽医》2016年第6期109-112,共4页Heilongjiang Animal Science And veterinary Medicine

基　　金：江苏省动物重要疫病与人兽共患病防控协同创新中心项目;江苏省2015年度普通高校研究生实践创新计划(SJLX15_0677);江苏高校优势学科建设工程资助项目;扬州大学大学生科创基金重点项目(x2015713)

摘　　要：为研究三个不同群体(闭锁群、新组建群和保护区群)不同性别高邮鸭的生长发育规律,试验采用Gompertz、Logistic和Von Bertalanffy三种生长曲线模型拟合分析方法,测定了高邮鸭从出生到10周龄体重并进行了相应周龄体重拟合。结果表明:三个不同群体高邮鸭6周龄前生长速度较快,公、母鸭的体重值基本一致,6周龄后公鸭生长速度明显快于母鸭;Gompertz模型拟合结果更加接近于实际值;公、母鸭的生长拐点分别在5.0,4.5周龄,新选育的高邮鸭新品系拐点周龄稍早于闭锁群。To study the laws of growth and development for different genders of Gaoyou duck from three different populations, including the closed population, the newly formed population and reserve area population, three kinds of nonlinear growth curve models including Gompertz, Logistic and Von Bertalanffy were used for the fitting and analysis in the test. The body weight of Gaoyou ducks from birth to 10 weeks of age was measured, and then the fitting at corresponding weeks of age was carried out, respectively. The results showed that three differentpopula- tions of Gaoyuu ducks grew faster and male and female ducks had basically the same body weight before age of 6 weeks, and the growth rate of male ducks was obviously stronger than that of female ducks after 6 weeks of age. The fitting effect of Gompertz model was closer to the actual value. The inflection points of growth for male and female Gaoyou ducks were at 5.0 and 4.5 weeks of age, respectively. The weeks of age at the inflection point for the newly formed population of Gaoyou ducks were slightly earlier than those of the closed population.

关 键 词：高邮鸭 性别 生长曲线 模型 体重 拟合 拐点周龄 

分 类 号：S834[农业科学—畜牧学] S813.24[农业科学—畜牧兽医]