Cattle lactation curve and yield projection calculator.
Explore an indicative 305-day yield using peak daily milk, peak day and a monthly post-peak persistency assumption.
Cattle lactation curve and yield projection inputs
Planning calculation only. Milk procurement rules, test equipment calibration, ration formulation, animal health, processing losses, local regulations and farm records must be checked before payment, feeding or production decisions.
Method: Yield rises linearly to the chosen peak day, then reduces by the entered monthly persistency factor. Daily values are summed across 305 days.
Inputs used: Peak daily yield = 20 L/day; Peak day after calving = 60 days; Monthly yield persistency after peak = 94 %
Assumptions: The result uses the values, units and options shown in the input snapshot.
Scope and warnings: Planning calculation only. Milk procurement rules, test equipment calibration, ration formulation, animal health, processing losses, local regulations and farm records must be checked before payment, feeding or production decisions. Rounding and excluded real-world terms can make an external result differ.
How this cattle lactation curve and yield projection calculator works
Yield rises linearly to the chosen peak day, then reduces by the entered monthly persistency factor. Daily values are summed across 305 days.
A worked example
A 20 L peak at day 60 with 94% monthly persistency produces a visible 305-day projection.
Is this a production forecast?
No. Individual animal yield changes with breed, parity, health, feed, heat stress, gestation and milking practice. Use farm records for decisions.
Calculations run on your device. Review your results before exporting or sharing them.
Start with your farm’s peak and persistency
The curve grows to the chosen peak day then applies the monthly persistency assumption through day 305. It is useful for testing records-based scenarios.
Individual animals can deviate because of parity, feed, pregnancy, health, heat stress and milking management. Use it for planning, not a yield guarantee.
Published by ToolMitra — methods and editorial approach.