Thanks everyone, I’m sorry to share such an unpleasant experience with you all, but so very grateful for the support.
@rjohns39 , there’s not enough “thank you”s for your help/support.
I do have liver available, (in the freezer at the farm house though, as the RV lifestyle isn’t ideal), I almost always have yogurt, and the nutri-drench. I don’t eat canned salmon or have a “need” for brewers yeast, so didn’t have it to hand, but I will be getting both on my next town trip now, just like the nutri drench I ordered when I had a sickly chick from the Sapphire batch in November, too little-too late for her, but I will now have it if I need it in the future.
I’m still well below the expected average losses for meat birds (7.5%) 3/40 as opposed to the 15-20% suggested on the hatchery website. The farmer with the CX that I shared the order with had lost 4/20 by week 3. And the featherless wonder (still mostly nekkid, but with a few more pin feathers coming in slowly) is still doing fine, strangely enough.
An aside, dairy is a no-no when treating with baytril... even if it’s excellent for tricking them into taking their medicine. It interferes with the function of the antibiotic somehow. Which I found out incidentally when suggesting it as a “how do I get this (baytril/enrofoxacin) into my chicken” solution. Why they love yogurt so much is also beyond me... that was a big “this isn’t going well” indicator.