山东省高养殖密度地区某正压空气过滤猪场9年蓝耳疫情回顾李月田, 环山集团.pdf

1、山东省高养殖密度地区某正压空气过滤猪场9年蓝耳疫情回顾A Nine-year Retrospective Study on PRRS Epidemic in A Positive Air Filtration Pig Farm in Shandong Swine Dense Region李月田 Yuetian Li健康管理部经理 Pig Health Management Manager提纲Outlines正压空气过滤系统简介Introduction to positive air filtration systemGGP场在正压空气过滤系统运行下历年生产成绩Production perfor

2、mance of GGP farm in past years under the operation of positive air filtration system2016年4月和2021年5月两次通过部分清群法快速净化蓝耳病The PRRS was rapidly eradicated by partial depopulation in April 2016 and May 202117年11月全群感染后通过封群净化蓝耳病The farm was infected with PRRSV in November 2017,which was eradicated by the LCEG

3、GP五周节律，一点式生产 five-week batch production,one site正压空气过滤猪舍，垂直通风 Positive air filtration with diffuse ventilation system猪瘟、伪狂犬、口蹄疫抗原阴性，蓝耳双阴 Antigen negative for CSF,PRV,FMD.Antigen and antibody negative for PRRS体系内供料，深井水，配清水清设备 Self owned feed mill,deep well water with Chlorine treatment为体系内提供精液和种猪 Pro

4、vide semen and breeding stock for the production system图1.场区分布图Figure 1.Regional distribution of pig farm图2.栋舍分布图Figure 2.House distribution背景 Background:背景 Background:独立空气过滤间，全场7组过滤器，每组3层过滤器（外层三防网G3,2层亚高效过滤器F7、F9）The air comes from 7 air filtration boxes with 3 levels air filters,wind protection ne

5、tting G3,prefilter F7 and main filter F9.图3.空滤间Figure 3.Air filtration room 图4.过滤器Figure 4.Filters 背景 Background:空气通过3层过滤器进入风道，空气垂直通过进气口平均进入房间通过漏粪板进入出风道，房间空气通过出风道汇集到出气间排出栋舍The air filtered comes through 3 levels air filter to the air duct,air enters the room vertically through the ceiling air inlet

6、and enters the air outlet through the slat,the air in the room was exhausted through the air outlet under slat.图5.进风通道Figure 5.Air inlet图6.垂直通风Figure 6.Vertical ventilation图7.出风通道Figure 7.Air outlet背景 Background:压力表：第一层G3压强差不高于60帕，第二层F7压强差不高于200帕，第三层F9压强差不高于340帕，空滤间滤效不低于85%Pressure sensor:The differ