need help

[beck77]

I have 25 Speckled Sussex they are 7 weeks old and have beening sooo good but I just checked them and some of them are passing blood can someone help Thank you
Becky

 

[SpottedCrow]

If they're pooping blood, they probably have cocci.
Are they on medicated starter?
That has a coccistat in it so they don't get it.
If not, you'll have to buy some amprolium and put that in their food/water.