The study was carried to evaluate the effects of feeding phytogenic feed additive, Artemisia absinthiumon nutrient intake, nutrient digestibility, utilization and performance of sheep. Ten male adult Bakerwal sheep were randomly divided into control group (T 0 ) and treatment group (T 1 ). The complete ration for T 1 was fortified with herb Artemisia absinthium@ 4%. Significant (P<0.05) differences were observed in DM intake, OM intake, average daily gainand digestibility coefficients of DM, OM, CP and EE. However, non-significant (P<0.05) differences were recorded in digestibility coefficients of NFE, NDF, ADF and HC. Significant increase in % DCP and % TDN were recorded in T 1 group as compared to T 0 group. Nitrogen, calcium and phosphorus balance were comparable between two groups and were positive in both groups. Among haemato-biochemical parameters blood glucose, Hb, PCV and total serum proteins, differed non-significantly (P0.05) between the groups, both before and after experimental feeding, except the BUN which was found significantly (P0.05) higher in herb supplemented group.