内蒙古白绒山羊早期生长曲线的分析  

Analysis of the early growth curve of Inner Mongolia white cashmere goats

作　　者：魏永龙 刘燕[2] 王志新[1] 周娟娟[1] 孟瑞强 王志英[1] 张文广[1] 张燕军[1] 苏蕊[1] 刘志红[1] 王瑞军[1] 李金泉[3] 

机构地区：[1]内蒙古农业大学动物科学学院,呼和浩特010018 [2]内蒙古农业大学职业技术学院,内蒙古包头014100 [3]内蒙古农业大学动物遗传育种重点实验室,呼和浩特010018

出　　处：《黑龙江畜牧兽医》2014年第8期43-46,共4页Heilongjiang Animal Science And veterinary Medicine

基　　金：国家绒毛用羊现代农业产业技术体系项目(CARS-40-05);国家公益性行业(农业)科研专项(20130305903;201003019);内蒙古科技计划项目(20110715);内蒙古农业大学职业技术学院应用技术研究基金项目(2011YJ0202)

摘　　要：为了研究内蒙古白绒山羊生长发育的特点,试验将内蒙古白绒山羊1998—2011年的体重记录,分为完整(出生重到7岁体重)和部分(出生重到2岁体重)资料,再分为群体平均水平和群体水平,利用常用的Logistic、Gompertz、Von Bertalanffy和Mitscherlich生长曲线模型对白绒山羊的生长进行非线性回归拟合。结果表明:在部分资料群体平均水平下,以Mitscherlich模型对绒山羊早期生长发育的拟合效果最好;Von Bertalanffy计算的最大日增重为231 g,拐点体重为10.187 6 kg,拐点日龄为50 d。说明应在此期间进行早期选育和饲养管理。To study the growth and development characteristics of Inner Mongolia white cashmere goats, the records of weight performance for Inner Mongolia white cashmere goats from 1998 to 2011 were used in the test. The materials were divided into complete data（ from birth weight to weight at the age of 7 years）and partial data（ from birth weight to weight at the age of 2 years）, and then were divided into the group average levels and group levels. Four kinds of common nonlinear regression growth models including Logistic, Gompertz, Von Bertalanffy and Mitscherlich models, were used to fit the growth of white cashmere goats, respectively. The results showed that under the group average levels in the partial data, the fitting effect for early growth and development of the white cashmere goats was best using Mitscherlich model; the maximum daily weight gain calculated by Van Bertalanffy model was 231 g, and the body weight at the inflection point was 10. 187 6 kg, and the day of age at the inflection point was 50 d. The results indicate that early breeding and feeding management should be carried out during this period.

关 键 词：白绒山羊 生长曲线 LOGISTIC模型 Gompertz模型 Von Bertalanffy模型 Mitscherlich模型 非线性回归 

分 类 号：S827[农业科学—畜牧学]