Summary Five types of worms can reduce productivity and give winter scours and Ostertagiosis in cattle. Worms and worm disease Large burdens of parasitic worms lead to reduced productivity in cattle.
Typical signs are diarrhoea and poor body condition.
Winter scours' often occur in yearling cattle and occasionally in adults. Where brown stomach worm Ostertagia is the main parasite this disease is referred to as 'Ostertagiosis'. Signs typical of worm disease may be due to other causes. If a drench does not stop the scouring or lead to improvement in body condition, contact your vet. More than one treatment with a white drench may be necessary to remove all larval worms especially where worm disease is a common problem.