Under-dosing Another false economy is to make a dosing pack go further than it should. Most under-dosing is not deliberate but due to poor estimation of the weight. Although most proprietary wormers are fine during the summer, housing is the time to use one of the more expensive injectable products which also give protection against lice. All grazed and bought-in young stock. Also first calvers and young bulls.
Farmers waste thousands of pounds using the wrong product.
At autumn housing use only a product effective against early immature fluke. Although preferred, it is not essential to protect cattle from the immature stages. Also a higher dose will need to be administered to the heavier cattle at a later date. All ages of cattle grazed on fluke pasture. If you don't have fluke on your farm then dose all bought-in cattle which might have grazed fluke land.