摘要
研究以42头饲养于生产性能测定系统（FIRE系统）的梅山猪母猪的生长发育数据（90～250d）为基础，研究其生长发育规律并拟合其生长曲线。梅山猪母猪的绝对生长和相对生长符合“抛物线”型，20—26周龄之前为快速增长期，随着周龄增加逐渐降低。利用2种非线性模型对其生长曲线进行拟合，都获得了较理想的拟合效果。其中，以Logistic模型的拟合优度最高，拟合结果最接近真实情况。在其拟舍生长曲线中，梅山猪母猪最大理论体重为92．654kg，生长拐点体重是46．327kg，拐点日龄是166．529日龄，最大日增重为416．943g/d。
The objective of this study was to study the growth development and fit the growth curve of the Meishan sows. The growth development data of 42 Meishan sows in Feed Intake Recording Equipment （FIRE） system from 12 weeks to 38 weeks was collected to study its regularity growth development. The rapid growth period was centralized before 20-26 weeks, and the absolute growth and relative growth of Meishan sows was fitted the typical downward parabola curve, then decreased gradually. Two non-linear models were utilized to fit the growth curve of Meishan sows. Though all the two models had good fitness, and Logistic model played better for achieving the real observations. According to the fitting growth curve, the maximum theoretical weight of Meishan sows was 92.654 kg, the growth turning point of Meishan sows was 166.529 d within the weight of 46.327 kg and the highest daily gain of 416.943 g.
出处
《中国畜牧杂志》
CAS
北大核心
2016年第23期15-18,共4页
Chinese Journal of Animal Science
基金
上海市生猪产业技术体系建设资助项目(沪农青字(2016)第2-1号)
上海市市级农口系统青年人才成长计划计划课题资助项目[沪农科产字(2015)第6号]
关键词
梅山猪
生长发育
生长曲线
拟合
Meishan sows
Growth development
Growth curve
Fitting
