Hi everyone I really hope I can get some help from you all. I recently bought 7 chicKS in April and they were doing well up until one died last week. She was diagnosed with "sour crop" and we tried our best to empty her crop and give her the meds the vet gave us but she unfortunately passed away later in the afternoon of an unknown cause. Now I have another chick that looks like she is starting to get sour crop and every chicken book I have read says give them plain yogurt and take the fred away..my concern is sour crop is like a yeast infection won't the dairy bother it more? They have clean water bowls and feed bowls there is no mold in the food and they have grass time for half the day until the evening I just don't want to go through the horror of watching another chick die...they are laying they are about 6 months old..any advice?