Use 305-Day Milk Correction when you need to project a lactation yield to a 305-day basis as current yield divided by days in milk times three hundred five. Enter Current yield and Days in milk using the definitions and units below so the result can be reproduced.

Current yield

Accumulated milk yield so far in kilograms; must not be negative.

Days in milk

Days in milk since calving; an integer between 1 and 305.

The published tool contract uses this rule: Project a lactation yield to a 305-day basis as current yield divided by days in milk times three hundred five.

Corrected 305-day yield

Projected 305-day milk yield in kilograms.

A ratio or percentage can conceal the scale of its numerator and denominator and becomes sensitive to measurement error when the denominator is small. Days in milk must remain between 1 and 305.

Retain the original Current yield and Days in milk values and their units alongside the result. Carcass Yield % is useful when you instead need to compute dressing yield as the carcass weight percentage of the live weight. PCR Yield Estimate provides another view by helping you estimate PCR product yield by compounding the starting copy count once per cycle with an efficiency factor.

• Carcass Yield %

  Compute dressing yield as the carcass weight percentage of the live weight.

• PCR Yield Estimate

  Estimate PCR product yield by compounding the starting copy count once per cycle with an efficiency factor.

• Platelet Count Correction

  Correct a counted platelet number by the dilution factor and the number of counting chambers.