All 43 tools
Livestock · mL · per animal
How much do I dose an animal by weight?
The dose from the animal’s weight and the rate on the product’s label, for one animal or a group dosed at one rate. The rate and the strength come off the label or the datasheet — this does the sum, not the choice of product or dose.
Measure it
Every box has its own unit next to it.
Change the unit beside any box and the number converts. The (i) beside each question says what the box wants and where the figure usually comes from. Anything marked per cent is a percentage of the quantity above it.
Check the rates
Rates and assumptions used
These are the figures the calculator works to. Change any of them and the order list updates — your merchant’s pack sizes and your own waste allowances beat the defaults every time.
Order list
The orange figure is the one you order to. Highlighted rows are the other numbers you order to. The small print under each row is the sum that produced it, so you can check it against your own take-off. Amber rows are warnings, not quantities.
How this one works
- Label in mL per 10 kg:
dose = weight ÷ 10 × rate - Label in mg per kg:
dose = weight × rate ÷ strength (mg per mL) - The dose is rounded up to the step your gun or syringe sets, never down; the total is that dose × the number of animals
The figures the calculator works to. Every one can be changed in step 2, and your merchant’s pack sizes and your own waste allowances beat these defaults every time.
| Rate | Default | Why |
|---|---|---|
| Dosing gun step | 0.5 mL | The smallest step your gun or syringe sets. The dose is rounded up to it. |
A worked example
With the defaults the page opens on:
- How does the label give the dose? mL per 10 kg
- How heavy is the animal? 65 kilograms
- What is the rate on the label? 2.5
- How strong is it? 10 mg/mL
- How many animals at this weight? 1 number
Dose
- Dose, exact: 16.25 mL — 65 kg ÷ 10 × 2.5 mL
- Dose to set: 16.5 mL — rounded up to the 0.5 mL step
- Total for 1 animal: 16.5 mL — 16.5 mL × 1
Before you dose
- Withdrawal period: on the label — meat and milk withdrawal come from the product, not from this page
Change any figure above and every line recalculates; the small print under each row is the sum that produced it.
Questions people ask
How do I work out a dose by weight?
From the rate on the label. For a label in mL per 10 kg, the dose is the weight ÷ 10 × the rate: a 65 kg animal at 2.5 mL per 10 kg is 16.25 mL. For a label in mg per kg, it is the weight × the rate ÷ the product’s strength in mg per mL.
Why is the dose rounded up?
A dosing gun sets in steps, so the dose is rounded up to the step you set - 16.25 mL becomes 16.5 mL on a 0.5 mL gun - and never down.
What weight do I use for a group?
For a group dosed at one rate, the weight the label or your vet tells you to dose to - often the heaviest in the group. The page does the sum; the product, the dose and the withdrawal period come from the label and your vet.
More tools beyond the site
Treating the whole flock or herd? PBS Livestock records the treatment against the animal it was given to, with the withdrawal date kept where you will see it.
Read before you rely on this. These do the sum with the figures you give them and nothing more. A dose, the product and its withdrawal period come from the label and your vet; a keg’s yield from your own lines and till; a delivery’s real costs from your own books.