[en] Twenty one Zaraibi kids, aged 4-5 months and weighed on average 9.5±0.2 kg were divided into three groups, seven kids in each. The experiment was beginning after the end of weaning period and lasted 5 months (May, June, July, August and September). Kids in the 1^st group were fed the basal ration (concentrate feed mixture plus Barseem hay without additives (Control), while those in the 2ⁿd and 3^rd groups were fed the same basal ration supplemented daily with crushed 2 gram from Nigella or Curcumin per one kg CFM, respectively. Nigella sativa (Nigella) and Curcumin addition to the diet of kids during months of the hot summer season comparison with control group improved significantly the final LBW at the end of 5 months by 5.56 and 4.8 kg and increased significantly average daily body gain (DBG) of kids by 62.2 and 54.25 g, respectively. Supplementation improved the animal immunity function i.e. total protein and globulin concentrations as well as thyroid hormonal levels (T₄ and T₃) and decreased the factor related to heart disease (total cholesterol and total lipids), glucose and cortisol levels in the blood plasma. At the same time, liver and kidney functions were not affected negatively by supplementation either with Nigella or Curcumin. Supplementation the diet of growing goats increased also significantly the Hb values and RBC'S count as well as the concentrations of Na, K, and Pi.