Читать книгу Farm Animal Medicine and Surgery - Graham R Duncanson - Страница 168

This occurs 3 weeks after ingesting Dictyocaulus viviparus larvae. The excellent oral vaccination against this condition, which uses irradiated larvae, is sadly being neglected with the use of pour-on ivermectin-type anthelmintics. The animals at risk are 2 year old breeding heifers and, of course, adult cows. Lungworm causes devastating effects in naive adults, with very marked violent coughing. (Plate 2). Mortality may be as high as 10%. Treatment with anthelmintics, antibiotics and NSAIDs is often not very effective, with many survivors being left with irreversible lung damage.