Since it’s fall Merial says it’s time to keep on the lookout for parasites in lactating dairy cows.

Fall is an important time for parasite control in dairy cattle. Worms, mange and lice present a threat to every dairy operation. They are doing their damage long before outward signs appear by causing depressed immune response, and reduced appetite and dry matter intake, which can result in decreased production.

“Fall and winter are the times of year when producers most often see clinical signs of parasitism,” says Dr. James Hawkins, associate director of Merial Large Animal Veterinary Professional Services. “However, waiting until you see signs like hair loss, rubbing and scratching is a mistake. Once you see the damage, you’ve already suffered a production loss.”