 The challenges we see in culled cows include lameness, a low body condition score, which means really thin cows, lesions on the hock of these animals, and basically udders that there's extra milk in the mammary gland. What they did is they looked at 43 Holstein cows, and they split them into two groups, a control group, and then another group of cows that were on 60 days on PMR rash on that dairy farm. In the first week, cows were dried off and put on a dry cow diet.