Answer :

More segregation for one. Also a possible rise is african american deaths caused by racial "disagreements." Farming may get done quicker bc the slaves are being beaten to work harder, therefore more produce. More produce might also cause inflation so we can get rid of all that produce.
stricter slave codes in the south would lead to more rebellion and conflict from the slaves. the slaves, though, would eventually find another way to escape from the south to the north.
i hope this helped!!