Northern Flights
Songster
I too benefited from probiotics after having to take some fantastically powerful antibiotics. Fortunately mine were by prescription and that ensured the quality and fidelity of the compound.I was new to chicks when I got mine in April and was beyond overwhelmed with all of the information out there (a lot of it conflicting!). I took the less is more approach as some of the others above and treated chick waterers with Nutridrench after shipping for a few days then switched to plain old water. I keep a separate waterer with electrolytes in the coop during the summer when the temps rise. I do used ACV, but have avoided it in the higher temps.
Using pre or probiotics was important to me for gut health, but with all the supplements on the market I found that using a feed that included both (added in a controlled environment) took the guesswork out for me.
Ask 10 people how they raise their chickens and you'll get 10 different answersWhat's important is that you ultimately choose to use what's best for your flock! Good luck!
My concern is with the complete lack of any kind of oversight of the myriad "health" products being sold for livestock. As Mary wisely notes, if the human supplements industry has issues, well...
It is imperative to take the time to verify anything that may affect the health and well being of yourself, your family and the critters that depend on your judgement for their very lives.