Evolving Slaves

Slave owners considered their slaves as livestock. So presumably they would have selectively bred them just as they did horses, cows and dogs. They likely introduced their own genes into the mix from recreational sex with the slaves. What traits were they trying to enhance? Yet I never hear about this or what effect it had in differentiating American blacks from Africans. What effect does this have on black people living in the USA today? It is probably considered too sensitive a topic.

~ Roedy (1948-02-04 age:69)