switched feed now have runny poop

[egyptchick]

My girls were on a unmedicated chick starter from a farm supply shop. they were close to finishing and i bought a new kind of starter/grower from another store that buys from our local feed coop. i mixed the first few trough fulls about 50/50 but they ate it so fast and i ran out of the original feeder. we have noticed runny poop. is this because the switch over to fast or the recent intro of worms to their diet?

 

[LarryPQ]

What kind of worms are you feeding them? Most ground worms & snails carry parasites which cause round worms in chickens. (there is another type of worm they get this way, but the name escapes me now) Worms can be a serious issue in some flocks.

Also, not all feed is created equal. I ditched one brand because it gave them the runs.

FINALLY- If you just switched off medicated feed, and they all suddenly have the runs, you need to do a search and check for Cocci in your flock. This can easily kill yonger birds.