As we have seen before, the permanent selection response depends on the selection intensity, the accuracy of the breeding value, the genetic variation and the generation interval. The first three are in the nominator of the formula and the last one in the denominator. Thus a higher the selection intensity, accuracy and genotypic variation and a lower generation interval gives the highest response. The formula is:SR = i * r* varg / GI
...
where: SR = selection response; i = selection intensity; r = accuracy; varg = genotypic variation and GI = generation interval
...