At Vlot Bros. Dairy near
Vlot bros. dairy in
Fifty percent of the cows get pregnant within 90 days in milk, which is outstanding.
Instead of timed breeding, the farm gives each cow an injection of prostaglandin at 40 days in milk. Cows are then inseminated based on a daily tail-chalking program. It’s a system that’s simple and repeatable, says Gavin Staley, technical services specialist with Monsanto Dairy Business.
The farm’s heat-detection rate is 62 percent, which is very good for a high-producing herd that is not on a timed-breeding program, Staley says. In essence, the farm has created synchronized, sexually active groups of cows by giving prostaglandin shots and then encouraging heat expression by providing access to exercise lots.