There is a story going around that farmers in Nebraska have observed that
cattle
prefer natural corn to Bt corn. Apparently, cows were in a field that
contained
both kinds of corn and they ate all the natural corn before they would touch
the
Bt corn.
If this were true, it would be significant since Bt corn is sold as feed. It
would suggest that the taste or some other property of the Bt corn might be
aversive.