The I-29 Moo University 2021 Dairy Webinar Series continues Friday, March 26 from 12 noon to 1 pm. This month’s topic is fly control strategies. Dr. Roger Moon from Minnesota will identify common pest flies and how to manage them on confinement dairies.
When we think of temperature stress on calves, the common concern is cold, but as temperatures are moving to the 900F mark this week, producers need to remember soaring summer temperatures, hot sun, and high humidity can cause heat stress in calves and heifers just as in the milking herd. Reduced feed intake and increased maintenance energy needs coupled with lowered immunity can lead to poor growth, higher susceptibility to disease, and in extreme cases death.
While horn flies and face flies are most commonly found on cattle in pastures, stable flies and house flies are more commonly found on cattle at the dairy. House flies are a nuisance for workers and cattle, often indicating a general sanitation problem. Stable flies, deer flies and horse flies, feed on blood from the back and legs, with stable flies having a long, bayonet-like proboscis that causes a painful sting.