📉 Animal Mortality Rate Calculator
Track mortality trends to monitor herd health and evaluate management practices.
Include stock added during the period.
Exclude culls counted as deaths.
How to Use This Calculator
Gather accurate counts
Record beginning inventory, purchases, sales, and mortalities for the selected time frame.
Enter values and compute
The tool produces mortality percent and death-loss share for quick benchmarking.
Investigate trends
Compare periods to detect health issues, environmental stressors, or management gaps.
Formula
Average Inventory = (Starting + Purchases + Sales) ÷ 2
Mortality Rate (%) = (Deaths ÷ Average Inventory) × 100
Death Loss (%) = Deaths ÷ (Starting + Purchases − Sales) × 100
Adjust formulas to match industry standards used in your species or production system.
Full Description
Mortality tracking is vital for biosecurity and profitability. Elevated death rates may signal disease outbreaks, nutrition issues, housing stress, or predator losses.
Use data-driven insights to align vaccination, ventilation, and husbandry practices with herd-health goals.
Frequently Asked Questions
Which species can I use this for?
Any livestock or poultry operation—adjust targets to industry benchmarks.
Should I include culls?
Count involuntary culls in deaths; planned sales remain in the sales field.
How often should I calculate mortality?
Monthly or by production cycle is common, with weekly checks during disease events.
Why is average inventory used?
It accounts for stock changes over time, giving a more accurate mortality percentage.