Wcs is more likely to cause a problem than meal. And even then it's temporary, it's not common , and it takes a large amount over a period of time and usually has to be upland cotton. Which is a small percentage of the us cotton crop. We feed sometimes as much as 5-7 pounds of wcs a day during rough times.
My uncle sells reg. Angus bulls and grows them on a cottonseed ration right up to the bse.
Meal is 40 percent protein and usually mixed with other ingredients in small amounts.