A HEALTHY ADVANTAGE 3 FACTORS WILL INFLUENCE THE QUALITY AND LENGTH OF YOUR DOG'S LIFE: GENETICS, NUTRITION AND CARE. While genetics are determined at conception, you still have a great deal of influence on the quality of your new pet's life in many other ways. Provide him with excellent nutrition, veterinary care and training, and help your dog grow to be a healthy, happy pet and a faithful companion. Knowing the basic facts about canine behavior and care will help you establish a good relationship with your dog. Take some time to learn about caring for your new dog and how to make your home safe for him. This can help ease the transition for him, and for the rest of your family.