Chickens & Yogurt

There's a fair amount of discussion on the internet about chickens and feeding them fermented feed.  The theory is that it releases nutrients and is probiotic.  Some people even also put live apple cider vinegar into their water mix.

As there's always some dregs of my yogurt (which I make myself) that I can't pour out of the bottle, I decided to see if the chickens would eat the water I flushed the container out with.  It took a while for the first chicken to try it, but they cleaned it all up.  Now they go straight for it, whenever I put some out.

The calcium should be good for their eggs, and the probiotics from the live culture should be good for them as well.