Increase Milk Production with LEDs


LED Lighting Improves Milk Production in Dairy Cows


A study by Michigan State University, titled “Increase Milk Production and Reduce Energy Consumption with Long Day Lighting,” discusses the relationship between dairy cow milk production and LED lighting. This 12-month study was done at Wing Acres Dairy, a 100 dairy cow operation in Barry County, Michigan. Wing Acres Dairy saw an 8% increase in milk production after updating their barn from metal halide lights to LEDs.


By converting to LED Wing Acres Dairy was able to easily implement long-day lighting (LDL). LDL involves exposing cows to longer daily light periods of 16 to 18 hours, followed by 6 to 8 hours of lower light levels. Previously with non-LED products, it was very difficult to successfully implement this system.


LED lighting systems are easier to control, have a longer life-span, require little to no maintenance, have less heat output, and use a fraction of the energy. Additionally, LEDs can be dimmed, eliminating the need for additional lighting fixtures during the dark period. These benefits make LED long day lighting implementation easier and more cost-effective.


In addition to the increased milk production, the owners of Wing Acres Dairy anticipated at least a 50 percent reduction in lighting electrical expenses. A payback of just over one year was estimated for the entire project. The increase in yield and the cost savings made the updated system affordable with compounding profits over time.


Read more about LDL here.


See the full Michigan State study here.