This is a test of commonsense. Complete the next sentence:

How to perform rectal palpation in cows and heifers
Confine the cow.
Put the female bovine to a squeeze chute or head-gate with gates on either side that prevents her from moving side-to-side.
Dress up.
An ob (obstetrical) suit or coveralls are best for this job. However, if you have old clothes that you don't mind getting dirty, then those will work fine as well.