Question: will I go to extreme bio-security measures to prevent illness in my chickens?
Answer: No.
Am I able to cope with the vagaries of a chicken's life and occassional unexplained death? Yes.
Am I convinced that a drop in egg production or weight gain is that big a deal to the backyard chick keeper? No.
Do I think most of us non-commercial keepers would even notice the drop in weight or egg production? No.
While I do not doubt you have superbly healthy birds, would they continue to be this healthy if exposed to what everyone else's birds are exposed to? Are they super birds, or only super birds in their limited geogrpahic and highly restricted environment?
As a chicken keeper I accept that there will be deaths for which I have no explanation. I am in fact quite amazed that I don't have more. I do not fuss over my birds overly much. In fact I have drawn my lines about what I will and will not do for my chickens. What steps I will take and what steps I won't. I tell people if they cannot cope with the REALITY of death and illness, keeping chickens is not for them.
WOuld I buy hatching eggs from Silkie? Yes. Why? Because I am able to cope with birds that die. I am not threatened, stopped or made immobile because of a respiratory illness in my chickens. I do not let it or the possiblity of it control the eggs or birds I buy. Chickens die. Period.
Do I think Silkie has a responsibility to kill all her chickens? NO I DO NOT! Not unless every single one of us is willing to do the same due to the fact that owing to the ubiquitous nature of this illness, we likely ALL have it present in our flocks (except for Higgins, who does not).
I think it comes down to not just chicken philosophy, but maybe life philosophy too. How much are you willing to manipulate your environment to make sure that reality does not get you? That is a personal decision. I know that chickens suffer from a plethora of diseases and I know that most of us have had them and still have them and without hesitation I have and will continue to buy hatching eggs from anyone on this site. I can cope with chicken deaths due to illness and predator and the mysterious unexplained and will not allow those things to stop me nor dictate my chicken keeping habits.
Some things you can change. SOme things you can't. Knowing the difference is posted on all those fridge magnets that start with "God grant me the..." I have had illnesses in my flock and let them, without any antibiotic intervention, fight it out. I have tough ass birds! I think Silkie should do the same and see who is standing at the end.
Higgins, I think we disagree on philosophy. You want to battle mightily to keep birds safe. I say let the chips fall where they may (within reason) and there is no reconciling those two different approaches. No matter what Silkie decides will be her method, I just want to publicly state that I would happily buy eggs from her and not let the possibility of loss or illness stop me.