After Drenching
Drench Gun Cleaning
Good hygiene is very important when handling drenching equipment, both for operator safety, and ensuring future efficacy of the equipment.
Wash out/squirt through tubing and drench guns.
Dismantle guns and carefully wash barrel with warm water and detergent.
Check valves for foreign material.
Ensure all parts are fully dry before reassembling.
Lubricate barrel using recommended oil.
Reassemble gun carefully ensuring washers are not damaged and valves are correct way around (springs always face nozzle end).
If anything is obviously broken, fix it immediately.
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The information in this section has been adapted from the Wormwise Handbook 2019. www.wormwise.co.nz
Take a Drench Check
This test is a simple and quick way to check if the drench you are using is effective. It is done by simply doing a Faecal Egg Count on faeces from drenched animals about ten days after the drench was given.
If there are worm eggs present on this test it can mean several things:
- It can mean that the drench was not fully effective and has left some worms still laying eggs.
- That the FEC was extremely high before the test and the residual egg count at ten days is not unexpected.
- That the animals were not drenched correctly, either the dose rate was insufficient, or the administration was not correct, or not all animals were drenched.