Six Friesian heifers fed a 40% pea diet were used in a cross-over design. Ground and extruded peas were compared. Decreased nitrogen (N) solubility produced by extrusion was associated with an increase in non-ammonia-N flow (+ 36%; P less than 0.001) resulting from improvements in bacterial N flow (+ 53%; P less than 0.01) and in feed N flow (+ 19%; P greater than 0.05).
Animals Cattle