Birth Date Predictor Chart

This handy hint was printed in the May 25, 2011 issue.

I work at a local dairy farm. One of my jobs is sketching calves and registering them. In the process, I compare the service date with the calf's birth date to confirm that the service date is accurate.

I made a chart for calculating the expected birth date for a Holstein calf, given the service date, assuming a 280-day gestational period. I offer the chart to anyone who may find it useful. The first week of January looks like this:

A larger pdf of this file is attached. Click here to open.

Submitted by:
Anita Elwell, New Jersey