Isolation and Acclimatization

 

What does all-in/all-out mean?

 

Proper functioning of an isolation/acclimatization area:

 

 

 

 

 

Isolation

Acclimatization

2 weeks

2-4 weeks

4-8 weeks

Gilt arrive

 

 

Wash and disinfect

Gilts arrive

All tests carried out gilts enter breeding unit

 

 

Typical problems

 

Basic commonsense issues

No isolation facilities

Gilts are placed at the end of the breeding barn only. This poses a serious PRRSv risk.

No change of clothing

Between the main farm and the isolation facilities.

 

No acclimatization

The only acclimatization offered these gilts was from the passing sows.

Isolation too close to the farm

Movement of needles between groups

No or poor cleaning between groups

Flow issues

 

Truck dirty

Dirty entry/exit facilities

 


Proper functioning of an isolation/acclimatisation area

 

 

 

 

 

Isolation

Acclimatization

2 weeks

2-4 weeks

4-8 weeks

Gilt arrive

 

 

Wash and disinfect

Gilts arrive

All tests carried out gilts enter breeding unit

 


What is not adequate?

Risk: Test results are not available when gilts are needed to move

 

 

 

 

Isolation

Acclimatization

2 weeks

2-4 weeks

4-8 weeks

Gilt arrive

 

 

Wash and disinfect

Gilts arrive

Test results not available when gilts enter breeding unit

 

Solution: Do not move gilts until all results available. There is no compromise.

 

Risk: Next batch of gilts arrives before current batch leaves

 

 

 

 

Isolation

Acclimatization

2 weeks

2-4 weeks

4-8 weeks

Gilt arrive

 

 

Wash and disinfect

Gilts arrive

All tests carried out gilts enter breeding unit

 

 

Gilts arrive in adjacent pens

 

Solution: Need to have sufficient isolation/acclimatization areas. The length of the isolation is only from the introduction of the last group of gilts or boars.

 

Risk: Boar moved from other group of gilts in a different isolation

 

 

 

 

Isolation

Acclimatization

2 weeks

2-4 weeks

4-8 weeks

Gilt arrive

 

 

Wash and disinfect

Gilts arrive

All tests carried out gilts enter breeding unit

 

 

Boar from another group of gilts in isolation

 

Solution: Move boars from main farm down to isolation/acclimatization area and only move back with gilts when all tests on gilts adequate. Boars must not move between isolation/acclimatization areas before test results known.

 

Risk: No washing between batches new gilts subjected to a high disease load on entry

 

 

 

 

Isolation

Acclimatization

2 weeks

2-4 weeks

4-8 weeks

Gilt arrive

 

No Washing and disinfection

Gilts arrive

All tests carried out gilts enter breeding unit

 

Solution: All-in/all-out is not only animals, includes, water, food, floor, air and medicines