Cows were
fed either SiO2 as a control (CON) or NOP at 25 g/d,
resulting in 0 and 2,500 mg/d of 3-nitrooxypropanol,
respectively Both NOP and SiO2, in powder form,
were hand-mixed with 80 g of ground barley grain, 50
g of wet molasses, and 40 g of canola oil to improve
adhesion to feed particles and palatability