The decision on whether or not to crop a puppy's ears is completely up to the owner. Many choose to crop their dog's ears to preserve breed appearance or to lower the risk for ear infections. Whichever stance an owner takes, it's important that the surgery is done by an experienced veterinarian. It's also important for an owner to understand they will be fully responsible for the after-care process, which is just as crucial as the procedure itself.
Breeds that most often have their ears cropped include:  
  • American Pit Bull Terrier 
  • Bully 
  • Boxer 
  • Doberman Pinscher 
  • Great Dane 
  • Schnauzer
  • American Staffordshire Terrier 

7-12 weeks is the optimal age for cropping Great Danes, Boxers, and Dobermans. For Bully breeds, we recommend cropping between 8-16 weeks.   
Countryside Veterinary Services offers professional ear cropping services and consultations at their Covington, Georgia location. A puppy must have a consultation prior to their surgical appointment.

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Diagram courtesy of www.americanbullyworld.com