Peak milk production is an indication of how well the cow responded to feeding management during the dry period, calving, and early lactation periods. Most cows achieve peak milk by 45 to 90 DIM and then slowly lose production over time.ere are my top 10 strategies for improved early lactation performance and higher peak milk yield: 1  Get cows off to a good start with a successful dry period. 2  Reduce the risk of subclinical milk fever (low blood calcium or hypocalcemia) during the first week of lactation. 3  Optimize feed intake immediately after calving. 4  Optimize cow comfort. 5  Mainta