White wormers (benzimidazoles) work well at killing adults in the GI tract, he adds. The two subclasses of the macrocyclic ...

Parasites are growing resistant to dewormers used by many Missouri farmers to treat their cattle. That’s according to a new study from University of Missouri researchers. Parasites can cause weight ...

and pastures can only be infected by cows carrying adult stomach worms. Worms that are resistant to a dewormer (less than 90% are killed by the treatment) survive and lay eggs that are deposited ...

Depending on the degree of the effects of the worms, animals fail to thrive, some become infertile and others will even abort ...

Farmers are being warned that routine wormer treatments are no longer considered reliable for treating lungworm in cattle, with vaccination now deemed the ...

Cattle farmers are being encouraged to vaccinate their animals before turnout, amid growing concerns that routine wormer ...