Can you post some photos of the poop?
Putting your general location in your profile helps us help you.
Look at your nutritional analysis of the Dumor Poultry Grower/Finisher - the one I see is 15%protein. I'm not a nutritionist, but imho, that protein content is too low. At 4months your girls are still growing, so it would be better to feed a higher protein (18-20%) like chick starter or flock raiser. When they begin laying eggs, if you choose to switch to layer that's o.k. or you can continue with an all flock (flock raiser) formula all their life, just provide oyster shell free choice for calcium.
The blueberries, strawberries, kale, etc. are wonderful things to give chickens, but keep in mind with 15%protein, whatever you give in addition to their normal feed dilutes the protein content. With a higher protein they can afford to have the treats.
Make sense?
Runny poop - can be from a number of things - drinking a lot of water, strawberries/blueberries (watery fruits/veggies) are all some common causes. Sometimes what we think may be runny poop is actually cecal poop - a chicken poops a loose pudding-like stinky poop (cecal poop) about 1 out of every 8-10 "normal" poops. Take a look at the links provided by the previous posters - very good information.
If you have photos of your pullets - we would love to see them too.
Despite all the ads ( I use reader view to make them go away) the
Chicken Chick has a good write up on chicken poop.
JT
@jthornton have you ever tried ghostery with firefox? Seems to work very well for me in blocking ads on most sites. I see a lot of people complain about ads - when I turn off ghostery - oh.my.goodness it's like bog down the computer and ad city
