中国猪繁殖与呼吸综合征现状、问题与对策.pdfVIP

Leman China Swine Conference 中国猪繁殖与呼吸综合征的现状、 问题与对策 Current situation, problems and control strategy of PRRS in China 杨汉春, Hanchun Yang 中国农业大学动物医学院 College of Veterinary Medicine, China Agricultural University 2013-10-15 内容提要 Outline  猪繁殖与呼吸综合征的流行现状 Current situation of PRRS in China  猪繁殖与呼吸综合征防控中的问题 Problems of PRRS prevention and control in China  繁殖与呼吸综合征的控制对策 Control strategy of PRRS 一、猪繁殖与呼吸综合征的流行现状 Current situation of PRRS in China  猪繁殖与呼吸综合征已成为危害中国养猪生产的 第一大病 PRRS is the first ranking disease that impacts swine production in China.  高致病性猪繁殖与呼吸综合征病毒（HP-PRRSV ） 的出现和广泛流行，加剧了该病的复杂性和控制 难度。 The emergence and extensive prevalence of HP- PRRSV in 2006 further aggravate the complexity of PRRS and its difficulty of controlling in China.  2006-2007年由高致病性猪繁殖与呼吸综合征病 毒所致PRRS疫情的大爆发之后，逐渐变得缓和 ，目前仍有散发性疫情发生，呈现地方流行性。 PRRS caused by HP-PRRSV is sporadic and endemic after epidemic of 2006-2007.  高致病性猪繁殖与呼吸综合征病毒的毒力仍未降 低，发病猪群仍呈高发病率和高死亡率。 HP-PRRSV remains high virulence for pigs. The affected pig herds show high morbidity and mortality.  临床疫情一年四季均可发生 The clinical outbreaks caused by HP-PRRSV occur in all seasons.  饲养管理水平高的规模猪场相对较平稳 PRRS exhibits stable situation in intensive pig farms with good management  疫情在中、小型猪场与散养户多发 The outbreaks caused by HP-PRRSV occur in middle-, small-size pig farms and backyard farms.  HP-PRRSV感染的临床症状呈现多样化 The affected pig herds exhibit diversity of clinical sign. 体温升高 high fever, over 41 ℃ 呼吸道症状（喘气、咳嗽、呼吸困难） Respiratory conditions 消化道症状（腹泻）diarrhea 神经症状 nerve signs 母猪繁殖障碍（流产） reproductive