Animal Mortality Rate Calculator

Your details

Choose "Herd records" if you have opening and closing stock figures. Choose "Deaths known" if you already know how many animals died.
Number of animals at the start of the period.
animals
Animals added during the period (births, purchases, transfers in).
animals
Animals sold, slaughtered intentionally, or transferred out during the period.
animals
Number of animals alive at the end of the period.
animals
Number of animals diagnosed with the disease during the period. Leave at 0 to skip case fatality rate.
animals
Of the disease cases above, how many died? Used to calculate case fatality rate.
animals
Select the species to see a typical industry benchmark mortality rate for context.
Mortality rateBelow benchmark - excellent
3%

Deaths as a share of (opening stock + additions)

Implied deaths15animals
Cumulative mortality0.0323
Benchmark low0%
Benchmark high0.1%
vs. benchmark midpoint-0.01%
3% %
Low mortality<3%Moderate3%-8%High8%-15%Critical15%+

Mortality rate is 3.00% for this period.

  • Your records indicate 15 animals died during this period.
  • Your mortality rate of 3.00% is below the typical 3.0-5.0% range for broiler chickens, which is a positive sign.
  • Mortality rate is a lagging indicator - pair it with daily observation records and disease surveillance for early warning.

Next stepReview records at the same interval each production cycle to identify seasonal or management-related trends over time.

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