We lost three calves so far. Symptom started with scours. Then wouldn't eat or get up. While laying down it looks like they are having muscle spasams. After about 3 - 4 days they die. They are only anywhere from 3days old to 6 days. They all have been new born calves. I wanted to say we had problems last year as well. The last two years we have been experiencing this. We were also wondering if maybe it could be one of our bulls. Maybe something genetic. We seem to be only losing a few not the whole heard. We have 55 herfers/angus cows. Does anyboday have an idea? My husband is really starting to get upset cause he can't save his calve. The vet always says it is scours but we think it is difinetly something else. My husband and his dad has had cattle all their lives and never experienced these many loses.