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BLOOD UREA DBGRADED IN LAMBS FED NATIVE GRASS.

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Potential blood urea degraded has been investigated to know the quality of dietary protein in lambs fed hammermilled hay ad lib.Hum or the hay supplemented, to supply 60 g crude protein, with formaldehyde-treated casein or lupin grain in a randomized-block design. Water was available ad libitum. Urea entry rates were measured by injecting 14c_urea into the jugular vein, and blood samples were collected at 15 to 120 minute intervals for 8 hours. Potential blood urea degraded increased with the protein supplementation up to double the control (P