Ample evidence is available of the benefits of letting stock scratch to shift insects and dead skin etc. (Lice usually live along the back of cattle and can actually be controlled by letting the cattle scratch adequately.)
But of most interest to the farmer will be the ability of this system to apply oil with or without pesticide whilst brushing.
The brushes have small spigot valves which release controlled amounts of oil whilst the animal scratches.
The animal only needs this oil each 2 or 3 days to effectively control biting flies.
Diesel oil is effective but linseed or mineral oils are better.
For maximum fly control pesticide can be added at 1 litre per 25 litres of oil (check manufacturer instructions).
The actual amount applied is just a few drops per animal and the brush bristles ensure it is spread around whilst the animal scratches.
The Cattle Brush and Oiler can be installed in a free-access raceway or cattle yards but for dairying is ideal mounted on an old trailer or similar which can easily be shifted each day with the herd.
The flow of oil can be controlled but if used fairly continuously by stock the 25 litre container will last 3-4 days.