The problem is that we all give, take or want somethings we don't need. Antibiotics.
We have through the years been given way to much antibiotics for various reasons and now the drugs aren't working anymore. We have become immune to them. The same thing is happening with the poultry population. If they are truly sick, yes then they might need it -read MIGHT-, but if they are not why give it to them?
I know that
TSC are telling everybody to give their chicks meds, a lot of that stems from them not offering medicated feed, but that is not the same thing. You can not give them antibiotic as a preventative measure, you will simply make the antibiotic not work when it is truly needed.
I even heard from vet that they are discontinuing Terramycin soon, I don't know how soon, because it is useless, the bacterias have built an immunity to it, and that is scary. All this means that we are having to give our chickens stronger stuff to kill off even the weakest bacteria.
Don't give them anything unless they need it.
What you can do is giving your chicks Apple Cider Vinegar, ACV in their water, it is good for them and it is not a medication, or you can give them plain yoghurt.
Search under ACV or yoghurt and you will find tons of posts on these subjects.
Sorry about the rant, I am from sweden and I am shocked of how easy it is to medicate yourself or your critters here in the states. It doesn't make for a healthier population, it makes us weaker.
Good Luck,
Kycklingmamma