bruce----I looked up on this site "what is mg " and got some info.
One thing that is often listed is
all in / all out strategy...............or something like this.
can anyone explain what is meant by this?
is this related to when you get new birds and introduce to an existing flock?
or is this about when one hen has a disease---that all might be infected?
please advise.........
Lisa, did you find the thread https://www.backyardchickens.com/t/113931/chicken-got-a-cold-added-info-ms-mg-ilt-crd-npip
Some interesting reading for sure... it is long and sometimes tedious info to go through, but I am glad I took the time.
Wow! What great info. AND a wake up call for those lax in their Biosecurity. I love that the thread that you referenced addresses the fact that NPIP means different things in different states. NATIONAL Poultry Improvement Plan implies that the rules are the same across the Country, but they are actually made State by State. So Delaware and Ohio's rules may vary from Pennsylvania's.
@ Lisa 'all IN - all OUT'. Is just what it sounds like. No new birds introduced to the property until all old birds are gone. Not very feasible for those of us hatching or keeping our birds as pets. Much easier to picture in the meat bird industry where birds are kept a short amount of time