If a breed is known to gain weight she will regardless of spaying. A good diet and exercise is best for anyone. It hurts too much. Like humans, animals can have pain shots before and after surgery. Just ask your vet for pain medication if your worried.
Most animals are sleepy the first day and acting normal the next.
Help Prevent Roaming, Spraying and Excessive Barking. To lessen or delete the Wild Cat and Dog Population. Lessen the chances of Testicular Cancer. In some States it's a law to sterilize any animal adopted from a Humane Society, Rescue Organization, or other Association. Texas includes this law.