The Effect of Urea and Niacin Addition in the Mixed Feed With Dried Sugar Beet Pulp on the Rumen Liquid and Blood Parameters

Abstract

Four rumen fistulated and ad-libitum fed Akkaraman rams were used in this study by using 4x4 latin square desing. Four types of treatment, namely control (K). pulp (P). pulp added niacin (P+Ni) and pulp added niacin and urea (P+Ni+Ü) were used in this experiments. The rate of dried sugar beet pulp was 50%. urea was 2% and niacin was 400 mg/kg in the mixed feed. The rumen liquid pH of animal consumed these feed were 5.89. 6.48. 6.47 and 6.50; rumen ammonia-N concentrations 24.40. 41.27, 37.48 and 41.41 mg/100 ml for K, P, P+Ni and P+Ni+Ü feeds respectively. The level of rumen liquid pH and ammonia-N were found to be higher in the other feed groups than K group (P<0.05). The times after feeding didn't effect rumen ammonia-N in all feed groups (P<0.05), but decreased on the pH of rumen liquid (P<0.05). In the groups the asetic acid concentrations of rumen liquid were 6.68, 6.59, 6.54 and 7.35 mmol/100 ml; propionic acid concentrations were 1.73, 1.14, 1.09 and 1.44 mmol/100 ml and butyric acid concentrations were 1.73. 1.14. 1.09 and 1.44 mmol/100 ml for K, P, P+Ni. P+Ni+Ü respectively (P<0.05). Effect of the time after feeding on the VFAs were significant (P<0.05), the highest concentration observed two-six hours after feeding. The effect of niacin and urea on pH. ammonia-N and VFAs were insignificant (P>0.05). The different betwen effects of K and P fed groups on blood serum total protein, glucose and ürea-N were insignificant (P>0.05). However the level of serum glucose in P+Ni feed and serum urea-N in P+Ni+U feed were highest than other pulp feed groups (P<0.05).