I find your dream interesting.
It seems to me that you are looking at a herd of cattle or steer that have no legs. You say "someone had taken them". So the ability to move has been taken away from these animals.
As I understand it, a steer is a castrated male raised for beef. So these animals have been emasculated sexually, but also in their lack of mobility. Ironic that the word "steer" also means to guide or direct the course of a vessel.
Then there's the "herd" element.
Lacking individuality, originality etc. A herd type of mentality.
(With the political climate today, I can see this as a view of a group of people.)