Noun
selective breeding (uncountable)
The practice of breeding the best specimens of a given organism to encourage certain features.
Monsanto practices selective breeding to produce high-yield seeds.
Synonym: artificial selection
Eugenics, which had started long before my time, had once been defined as including free love and prevention of conception... Recently it had cropped up again in the form of selective breeding. Margaret Sanger
Selective breeding in Christian countries has led to ... the progressive elimination of defective persons. Rousas John Rushdoony