| 北京地区鸡球虫种类的初步调查 |
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| 引用本文： | 林昆华,熊大仕.北京地区鸡球虫种类的初步调查[J].中国农业大学学报,1981(1):1-12. |
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| 作者姓名： | 林昆华 熊大仕 |
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| 摘 要： | 一、引言鸡球虫病是雏鸡的一种严重疾病,对养鸡事业危害很大。北京地区每年4-9月份常发生鸡球虫病,雏鸡的发病率和死亡率均很高。在严重污染而且饲养管理条件比较差的鸡场,其死亡率可高达70—80%,使养鸡事业遭到巨大的经济损失。因此,鸡球虫病的防治对畜牧业经济有着重要的意义,是当前生产上急需解决的问题之一,也是兽医科学工作者的一项很
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| 关 键 词： | 球虫种类 变位艾美耳球虫 巨型艾美耳球虫 柔嫩艾美耳球虫 堆型艾美耳球虫 鸡球虫病 球虫卵囊 原生质 北京地区 初步调查 |
A PRELIMINARY INVESTIGATION OF THE COCCIDIAN SPECIES OF CHICKEN IN THE PEKING AREA |
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| Lin Kun-hua Xiong Da-shi.A PRELIMINARY INVESTIGATION OF THE COCCIDIAN SPECIES OF CHICKEN IN THE PEKING AREA[J].Journal of China Agricultural University,1981(1):1-12. |
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| Authors: | Lin Kun-hua Xiong Da-shi |
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| Abstract: | The species of chicken coccidia have been investigated on four large-scale farms in the Peking suburbs.This investigation includes three different kinds of observations: 1.The observation of the structure of the oocyst and it's sporula- tion time. 2.The observation of the prepatent period of various species of chicken coccidia.One-day-old chickens(coccidia-free)were artifici- ally infected with about 1,000/per chick oocysts delivered from the first experiment.The discharges of chickens were examined everyda... |
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