Research shows time and time again, whether it is because of profit or pain management, that the earlier you castrate, the better. A Kansas State University study showed that bulls castrated and implanted at an average of 3 months of age weighed 2 pounds more at 7.5 months of age than did the intact bull calves in the same study. At 7.5 months, the bulls were castrated, and then both groups were weighed 28 days later to assess gain.The steers castrated as calves gained 48 pounds, while the bulls that were cut at an average of 578 pounds only gained 33 pounds. That is a lost potential gain of 15 pounds, as these late-castrated bulls had to deal with the stress of healing from surgery. Learn more on how to get the most out of your ranch and raising cattle here.