Calculating Your Daily Butterfat Production
Total Production Quota (TPQ) is based on daily kilograms butterfat produced.
To calculate the amount of milk you can produce to meet your daily quota, both your butterfat test (BF) and litres of milk produced per day must be considered. The table and the examples below show one way to calculate your production. The table indicates the number of litres per kg of BF over a range of test values.
| BF Test (kg/hl) | litres/kg of BF |
|---|---|
| 3.0 | 33.3 |
| 3.1 | 32.3 |
| 3.2 | 31.3 |
| 3.3 | 30.3 |
| 3.4 | 29.4 |
| 3.5 | 28.6 |
| 3.6 | 27.8 |
| 3.7 | 27.0 |
| 3.8 | 26.3 |
| 3.9 | 25.6 |
| 4.0 | 25.0 |
| 4.1 | 24.4 |
| 4.2 | 23.8 |
| 4.3 | 23.3 |
| 4.4 | 22.7 |
| 4.5 | 22.2 |
| 4.6 | 21.7 |
| 4.7 | 21.3 |
| 4.8 | 20.8 |
| 4.9 | 20.4 |
| 5.0 | 20.0 |
| 5.1 | 19.6 |
| 5.2 | 19.2 |
| 5.3 | 18.9 |
| 5.4 | 18.5 |
| 5.5 | 18.2 |
To calculate your daily quota in litres, multiply the litres matching your average BF (from table above) times your daily quota. For example, if you have 60 kg of TPQ and 3.8 BF, then 60 x 26.3=1,578 litres/day.
To calculate the amount of BF you are producing based on your shipments, do the reverse. Determine your daily milk production and divide by the litres/kg of BF from the table. For example, if you are producing 1,578 litres/day of 3.8 BF, then 1,578/26.3= 60 kg/day.
With this information you can determine your upper limit (10 days x daily TPQ) and your lower limit (15 days x daily TPQ).