Bovine Light Mask – Research

The Bovine Light Mask is a headpiece for cows that provides timed low-intensity blue light to one eye to extend natural daylight. By identifying the threshold level of light delivered to a single eye to suppress circulating concentrations of the hormone melatonin to levels observed under bright barn lighting, we have successfully developed a mobile lighting solution for light therapy provision to cows. Use of the bovine light mask on lactating cows has been shown to increase milk yield by 9% in initial trials providing a sustainable means to improve dairy farm efficiency and productivity.