sarge unless your hunting in a fenced in area you cannot change the genetics of a free ranging herd by harvesting inferior bucks or protecting superior bucks.
The average male fawn will disperse between the ages of 3 months to 18 months old and travel a distance of 3 to 40 + miles. How ever the average female fawn will live its entire life with in a couple miles of where it was born. And since atleast 50% of the buck in your examples genes come from its mother and the fact that the majority of doe fawns spend their entire life with in a few miles from where they were born you would have to exterminate every doe that currently lives in the area to have any influence on your herds genetics. Pike