With genetic testing at each subsequent generation, and with a goal of breeding normal by carrier or normal by affected, the frequency of disease will drop and frequency of normals will increase without loss of other desirable traits valued in collies. (optigen.com)
Is enhancement merely referring to boosting muscle tone and other desirable traits like achieving perfect pitch or does the term also encompass steps to guarantee better health by preventing disease? (scientificamerican.com)
The flat or short faced head and other desirable traits lead to health issues that range from respiratory problems to anatomical and genetic issues that result in a relatively short lifespan. (dog-health-guide.org)