The phrase "poor conformation" refers to the physical structure or arrangement of something being not proper or correct. For example, it can describe a person's posture or the way an animal's body is formed. Full definition
Frequently, the ligament tears without any obvious trauma in dogs that are overweight or that have genetically poor conformation of their knees. (animalkindvet.com)
• Regulations under the Animal Welfare Act (2006) to prevent breed related and inherited problems that impact on a dog's quality of life and longevity (ie poor conformation and breed related genetic diseases). (cavaliercampaign.com)
The 15 breeds have been identified by the Kennel Club as having particular health problems often due to poor conformation as a result of having been bred with exaggerated characteristics. (marcthevet.com)