Well, I don't know as much as I should, but I do know that the feed companies are starting to formulate binders that should help the problem and my feed guy took a feed sample the other day to see what the levels are. I've been delivering corn to Greenville Ethano for the last couple weeks and they test every load, but we never had a load test over 1 part per million. I know that when they make ethanol or Cargill makes corn syrup that the byproducts have a concentration up to 4 times that of the original corn that was used to make it. I think a lot of the problem came in varieties of corn where the ear stood straight up and never broke over, the husk would fill with water every time it rained, and since it rained every third day eventually it molded. My cousin has a couple thousand sows and they rufused to eat some of that corn, they had to go back and empty all the feeders and bins and find corn with lower levels, they're using the binders now and not having any trouble.
As far as cows slipping their calf over it, I have not heard that. I'm sure that they will consume it fine and if the stuff looks and smells ok I wouldn't be too worried, but it would be better to have it tested. I think the bigger older cattle can handle some of it ok, but I'm more concerned with the lighter cattle, so we're starting to add the binder for the light cattle
Larry