疫病学

Based on the scientific and technical force of Animal Quarantine Institute and other scientific institutes, universities and colleges both at home and abroad, guaranteed by the modern manufacturing equipments, advanced production techniques and strict enterprise management, with China Epizootiology Center and Animal Disease Diagnosis and Treatment Center as windows and backed by sale and extention network covering the whole country and broad competent experts, the company is becoming a new and high-tech enterprise integrating scientific development, production and business and technical service.

公司以农业部动物检疫所及国内外科研单位、大专院校科研力量为依托，以现代化生产设备、高标准的生产工艺、严格的企业管理为保证，以全国动物流行病学研究中心及动物疫病诊疗中心为窗口，以覆盖全国的销售、推广网络及强大的专家服务队伍为后盾，发展成为集科研开发、生产经营、技术服务于一体的高新技术企业。

This paper had obtained the data related to porcine reproductive and respiratory syndrome,hog cholera and porcine circo virus by questionary , locale inquire and sample detecting for all kind of scale hogpen in Henan province.

通过对河南省不同规模猪场问卷调查、现场问询调查和采样检测，获取有关猪瘟、猪繁殖障碍与呼吸综合征、圆环病毒病等疫病流行病学的相关情况。

Its duties are: collecting full information and doing dynamic analysis to worldwide animal epidemic situation information; founding and maintaining worldwide animal epidemic situation information general database; developing technical check and epidemiology survey of heavy diseases, paroxysmal diseases, and new diseases, researching the foudroyant condition and epidemic rules of epidemic situation; drawing out and evaluating the prevention and cure scheme etc.

它的职责是：全面收集和动态分析国内外动物疫情信息，建立和维护国内外动物疫情信息综合数据库；开展技术核查和重大病、突发病以及新发病的流行病学调查；研究疫病发生条件和疫病流行规律；拟订和评价疫病防治方案等。

Twenty-day-old healthy and non-immune ducklings were hypodermically injected with NDV of chicken origin and the control group were hypodermically injected with sterilized physiological saline.

本研究取120只20日龄健康非免疫建湖鸭，随机分为2组，每组60只，研究鸡源新城疫病毒人工感染鸭的病理组织学变化及其病理演变过程。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！