Dairy

Supplementing with fresh barley grass in a typical daily diet of a cow
in mid lactation improves milk production, increases fertility and gives
rise to a healthier animal requiring less veterinarian care.
Barley grown hydroponically as a supplemental feed not only keeps dairy
cattle healthy but can give premium prices from higher grades of butter
fat in the milk. Each kilogram of barley fodder is equivalent
nutritionally to 3kgs of lucerne.

In one study of milk production, with a diet of barley fodder versus one
of normal feeds such as grain, hay or silage, a group of 60 cows on a
barley fodder diet increased milk production by 10.07% over the control
group. In addition, the group fed barley fodder produced a butterfat
content of 14.26% higher than those fed a regular diet.