Bad Batch of FeeD need Feedback

ok guy i have been feeding diamand Premium for about a year now. I think i got a bad batch of fed. I need to know if anyone els is having problems

Here is whats going on. My dogs are having bloody runny stools. Spent $600 at the vet just to find it it could be the feed.

Is anyone having this same problem.

Yes I've definately seen the same problem with my own dogs, I had been feeding the Diamond Hi-Energy for quite some time, and since about December my dogs just seem to go downhill, they weren't holding their muscle structure as well, and I even noticed some blood in the stool of two of my dogs, I tried to talk w/ diamond about the problem they only wanted to offer a replacement bag of feed instead of fixing the problem. I stayed w/ them for about 2mths more because I have been a Die Hard Diamond Pet Food customer for several years, even thru their worst recall a few years back. But with the problems my dogs were having and the prices keep going up on Diamond Dog Food, I figure I could just as well buy another premium brand and give it a try, and my dogs seem to be doing a lot better on the new feed.

I spoke w/ a reputable breeder here in Arkansas and he feeds the Diamond Hi-Energy which the formula for that and the premium are nearly identical, but he said that he's had some occasional blood in the stools of his dogs are well, and he's since had to add supplements to the feed and that seems to be bringing them back up to shape for the time being until he switches brands.