The dairy farmers' goal should be to raise healthy, well-grown heifers that calve and enter the milking herd by 22 to 24 months of age. Producers should strive for an average calving age of 23 months. Research and field data indicate that lifetime production and profitability increase with calving slightly below 24 months of age.
Meg Moynihan, Principal Administrator
Minnesota Farm Opportunities
Ag Marketing & Development Division