Dairy and beef cattle are at risk of husk, caused by infection with the cattle lungworm from June onwards. Unvaccinated calves, naïve adult cattle and those without an effective anthelmintic programme face the greatest threat.
Early signs of lungworm include coughing after periods of exertion and progress to more severe compromise, with coughing at rest, increased respiratory rate, and difficulty breathing. Prompt recognition and treatment is critical.
“Early intervention significantly reduces costs and the impact on productivity. A diagnosis should be sought from the farm’s vet at the first sign of symptoms, “ advises Sioned. “Treatment with a fast acting zero milk withhold wormer with up to 28 days of persistent activity, such as Eprinex® (eprinomectin) provides effective control without the loss of milk sales.”
Incidents of parasitic disease caused by gutworms, including Ostertagia ostertagi, peak in August and September, though even low levels of worm challenge can reduce growth rates by up to 30% in beef calves and dairy replacement heifers.
Strategic control with a broad-spectrum wormer such as IVOMEC® Classic (ivermectin) can reduce the impact of parasites in autumn/winter born calves in their first grazing season, and spring-born suckler claves in their second grazing season. Those animals receiving strategic treatments must remain set stocked for the entire grazing period or moved to aftermaths when they become available. read more…