Retaining the correct number and best quality of replacement heifers can be a critical profitability factor in today’s dairy economy.  Penn State University Dairy Extension has published a guide to using herd data to manage replacement heifer inventories. 

The paper provides guidelines forcalculating and monitoring:

  1. Number of heifers needed to maintain current herd size
  2. How many heifers can be expected annually
  3. Genomics data to identify the heifers with both the greatest and lowest genetic potential

You can read the full paper, including calculation formulas, here