Kathy, I'm really not questioning whether or not a few lice could possibly be remaining. Even after a good dusting though, I'd bet there's still a few remaining as well. My birds were infested and now are not.
Dawg, the birds I treated are my breeders so the meat residual is of unimportance.
Ya'll are funny.
Both of you have probably stated in the past that ivermectin will kill mites, now your stance is that it will not. My belief is that it does and with good reason. I'm not so much questioning anymore whether or not it works, but instead looking for another theory as to where my lice went if indeed it doesn't work. I can understand if your stumped but there's no need to change the issue in question by introducing other potential methods or pointing out a con of using ivermectin by stating the withdrawal period. Every product has pros and cons. I wasn't hip on using the ivermectin but I certainly wasn't going to use the all magical powder called "sevin dust" that both of you tout so often (unfortunately). The problem was with/on the birds and the problem was resolved there. There is no need to introduce something to the environment that is so very toxic to so many things, but especially bees. A little bee that really isn't a part of the food chain and ask nothing of no one, yet it does so much for us.
Can you imagine how many tons of sevin that uninformed folks have used over the years? All this research trying to find where the bees are...hmmmmm
To members such as Kathy and dawg, you've shared a lot of knowledge that has no doubt helped a lot of people and this site is thankful to have members like you. So please take what I've stated as well intended as it was meant.
I noticed yesterday that a roo I had taken out of the breeder pens and moved to a hoop coop before I treated my mite/lice problem, is obviously still infested with lice. I'll be dosing him today with Ivermectin to see if perhaps the 50 birds I treated successfully last week was maybe a fluke. The outcome will set in stone for me whether or not ivermectin can kill poultry lice, or at least at the dosage I give.