No supplement should be given more than 10 days in a row.
Please don't buy all the hype.. but if you do don't forget the acv needs to be raw to get the benefit.
Balanced ration not diminished by excess treats and plain fresh water.. are the keys to life and the BEST way to keep birds healthy.
Seeing you're in Texas.. let me mention a few things.. acv should not be used during hot weather is my understanding.
Also even though chickens don't have capsaicin receptors in their mouths and maybe not in their rectums like people do.. but I have handled hot pepper and had my skin burned on par with a good sun burn.. beware what you do to your chickens please as they can't tell us when something is wrong!