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Weight Assessment
There is no substitute for knowing your horses weight accurately. A weigh tape can be purchased through our online shop that will help you with this.
The below is a guideline to dosing rates, but should not be used instead of using a weigh tape.
| Under 12hh Shetland, Dartmoor, Welsh A | 200kg – 320kg |
| 12hh to 13hh Exmoor, New Forest, Welsh B | 230kg – 330kg |
| 13hh to 14hh Connemara, Dales, New Forest, Welsh C | 290kg – 390kg |
| 14hh to 15hh Arab, Dales, Welsh D | 360kg – 550kg |
| 15hh to 16hh Arab, TB, ID, Welsh X | 400kg – 550kg |
| 16hh to 17hh TB, Warmblood | 470kg – 650kg |
| 17hh to 19hh Warmblood. Heavy Horse Breeds | 550kg – 1000kg |
It would be very easy to overdose the lighter weight horses and to underdose the heavy weight horses.
Horses over 15hh may require more than one syringe for the wormer to be effective.
If you under dose your horse then the wormer will not work and you will be wasting your money.
If you over dose your horse or pony then you could be contributing to an increase in the speed of worms developing resistance to the chemical wormers.

