---
title: "5.6 Survival Percentage"
space: "Vuna Livestock"
url: "https://docs.navari.co.ke/livestock-management/50-reporting-and-monitoring/56-survival-percentage"
updated: "2026-10-24"
---

Use **Survival Percentage** to review recorded deaths relative to animal exposure over a period. The card defaults to the current month through today and your default Company. It includes only permitted batches marked **Is Livestock Item**, with Items counted in Nos or Unit. Optional Company, Item, Batch, house, and date filters narrow the scope.



Period survival is `100 × (opening population + animals entering the scope − deaths) / (opening population + animals entering the scope)`. It combines animal counts rather than averaging batch percentages. Sales and explicitly separate Culling-type issues are departures, not deaths. All issues posted under the Mortality type count as deaths; culling recorded under that same type cannot be distinguished automatically. Internal transfers and valuation-only Repacks net out across the selected scope. Transfers into a selected house count as entrants to that house. The card shows **Unavailable** for a missing denominator, stock corrections, incomplete batch transformations, unreadable/unclassified stock issues, or invalid negative balances. Its percentage is an operational period rate, not a lifetime cohort survival estimate. Automatic percentage-change statistics are disabled because they are a different metric.

![](/files/image868c96.webp)

For a stable opening population of 10,000 and 652 classified deaths, survival is 93.48%. Review source classifications before interpreting a difference from closing/opening population.