Utilization of Urea and Water Metabolism by Zebu Cattle and Buffaloes under Tropical Conditions

Abstract

In four metabolic trials four Zebu Tharparkar cows and four Murrah buffaloes were fed four rations: I, standard farm concentrate ration; II, a ration isocaloric and isonitrogenous with the above but in which 25% of total nitrogen was supplied by urea; III, ration as above but in which 38% nitrogen was supplied by urea; and IV, negative control for II, isocaloric with the above rations, but it supplied 25% less nitrogen, i.e., the nitrogen that was supplied by urea in II.