四川农业大学学报 ›› 1999, Vol. 17 ›› Issue (02): 197-200.doi: 10.16036/j.issn.1000-2650.1999.02.016

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仔猪断奶应激效应定量估测

姜勋平1, 杨利国1, 刘桂琼2, 张牧2, 丁家桐2, 俞浩2   

  1. 1. 南京农业大学 动物科技学院, 南京 210959;
    2. 扬州大学 畜牧兽医学院, 扬州 225009
  • 收稿日期:1999-01-22 出版日期:1999-06-30 发布日期:2017-04-22
  • 基金资助:
    江苏省"九五"科技攻关项目

Estimation of Weaning Stress Effect on Piglet Growth

JIANG Xun-ping1, YANG Li-guo1, LIU Gui-qiong2, ZHANG Mu2, DING Jia-tong2, YU Hao2   

  1. 1. College of Animal Science and Technology, Naming Agriculture University, Naming 225009, China;
    2. College of Animal Husbandry and Veterinary Medicine, Yangzhou 225009, China
  • Received:1999-01-22 Online:1999-06-30 Published:2017-04-22

摘要: 用动态分析原理,建立了定量估测断奶对仔猪生长应激效应的方法。仔猪早期生长符合指数模型;断奶到断奶应激结束阶段的生长符合二次多项式。两模型的一个交点为断奶应激结束时间;两交点之间积分面积开方值为断奶应激效应值。试验中大约克夏猪28日龄断奶应激效应值为4.52kg;断奶应激结束的时间约为55日龄,即断奶后的27d。

关键词: 断奶应激效应, 生长模型, 仔猪

Abstract: The mathematics model of piglet normal growth and that of weaning stress growth by weaning on 28 days old were analyzed by dynamic mathematics method. The value o.f weaning stress of Yotkshire piglets is 4.52kg. Weaning stress is terminated on day 55 of post-birth or day 27 of post-weaning.

Key words: EFFECT OF WEANING STRESS, GROWTH MODEL, PIGLET

中图分类号: 

  • S828