Pengaruh Berbagai Kandungan Urea Dalam Pakan Terhadap Fungsi Hati Kambing Peranakan Etawa Laktasi (the Effects of Urea Levels in Feed on the Liver Function of Etawa Crossbred)

Abstract

This research was conducted to determine the effects of urea levels in feed on the liver function as indicated by the concentrations of serum glutamate pyruvate transaminase (SGPT) and serum glutamate oxaloacetate transaminase (SGOT) in lactating Etawa crossbred. Goats fed diets in mixed ration which partially replaced with urea in the amount of 0%, 0.4%, 0.8% and 1.2% on DM basis for 28 days. The experimental design used in randomized complete block design. The blood samples were taken from jugular vein on day 28 to measure the concentrations of SGPT and SGOT. The results showed that the concentrations of SGPT and SGOT did not differ among the experimental diets (P>0.05). Thus, urea could be used in the diets of lactating dairy crossbred goats up to 1.2% DM, without any detrimental effects on the liver function