4. Best Management Practices for Farm Biosecurity for Pig Production

4.2 Boundary Rules

This step helps define where the dirty versus clean boundaries are located and applies to most of routes of contamination. The video "Access to the CAZ and RAZ" (below) descibes the process. The boundary may include a physical barrier such as a fence or may just be a location where a set of rules apply for entry.

The Controlled Access Zone (CAZ) is the pig farm yard, including buildings and driveways, where access is limited and rules for entry apply to avoid cross-contamination, as between workers or rodents contacting contamination on the driveway from the dead stock or feed truck, for example. The Restricted Access Zone (RAZ) is where the pigs are housed and there would be a defined entry protocolIdentify and sketch these.

CAZ = Pig farm yard including buildings and driveways.

RAZ = inside of buildings where the pigs are housed.

4.2.1 Driveway surfaces should be constructed of hard surfaces or gravel to avoid the pooling of water and to make cleaning easier.

4.2.2 Specific entry points to the CAZ should be obvious and a protocol for entry should be known. Install at the points of access a gate or barrier that can be locked. Signage:

Signage should indicate that they are entering a controlled zone and include instructions for entry. Include a phone number where contact can be made and permission for entry obtained. Signs should direct traffic flow as well as assist visitors. Entry of CAZ is only allowed when preauthorized by management. Visitor parking should be outside the CAZ. Placement of or access to facilities such as feed bins and dead stock temporary storage outside the CAZ is preferred. A log for vehicles and drivers entering the CAZ should be maintained. Regularly reoccurring entries, feed trucks for example, may use delivery slips as a record.

4.2.3 Establish the dirty side – clean side boundary at the entrance into the RAZ The boundary must be in an entrance room (anteroom). Anteroom must be kept clean to encourage entry protocol compliance. The boundary can be a bench or shower where the entrance procedure is completed. Protocols for people, supplies and equipment entry into the RAZ are needed. Entry into the RAZ should be kept locked.

Doors to the barns must be kept locked to prevent accidental uninvited visitors from entering. Maintain a visitor log with the date, name, last barn visited and when, contact phone number, reason for visit.