This calculator estimates how many replacement hinds you need each year and from that, how many 'spare' hinds you have available for terminal sire matings.

Herd settings

Replacement settings

Key results

Suggested mating programme

Estimated hind age distribution

Culling non-pregnant hinds

Are dry 1st fawning hinds culled?

Are dry 2nd fawning hinds culled?

Are dry mixed age hinds culled?

Estimated conception rates

Percentage of hinds mated that are scanned pregnant

Fawn survival rate

Percentage of pregnant hinds that wean a fawn

Mate allocation calculator

The calculator is designed to give an indication of the number of hinds required to be mated to maternal genetics to produce the required number of female replacements and the number of hinds that could be mated to terminal sires. Terminal sires may be higher growth rate Reds, Wapiti or Elk. A balance is needed between maternal and terminal genetics to retain a good rate of genetic gain in the hind herd through the introduction of higher merit female replacements, turnover of older hinds and venison production.

How to use the calculator

Set your herd size, maximum age of hinds, death/culling rates on the front page, whether replacements are kept from first fawners and if any replacement hinds are purchased. To account for any losses or later selection between weaning and entering the herd as two year olds we recommend setting the minimum replacement pool size to 20- 25% extra. Use the 'More Settings' button to refine the reproduction parameters of your herd - using the sliders and Yes/No options. You can check your settings against the total numbers of fawns/calves weaned on the main screen - does it match your typical result? The results are intended as a guide only.