Breeding herd of cattle in the pasture?

Question

It is correct to use: breeding herd of cattle in the pasture.

Answer 1

Your intent is unclear. Is it:

A herd of cattle breeding in the pasture. (a whole lot of cows and bulls in the pasture having sex)

OR

A herd of breeding cattle in the pasture. (a group of cattle designated for breeding that a being held in the pasture.

One of these two is your intent. You choose.