The study was carried out at the farm located at the Animal Production Farm, College of Veterinary Medicine - University of Tikrit, For the period from 1stDesember 2019 to 9ᵗʰ February 2020 (70 days) excluding 14 days as an adaptation period. The aim of this study find source of nitrogen alternative soybean meal for fattening Awassi lambs. Twelve Awassi lambs were used, aged from 4-5 months, with an average starting body weight of 23.5 ± 1.12 kg. Three formulation diets were randomly allocated to three groups of animals. Group one (T1 control) 14.7% soybean meal, Group two(T2) 7.5% soybean meal with 5.5% corn gluten meal and the third group 11% corn gluten meal.). All the experiment diets were supplemented with 1% salts and 1% vitamins and minerals with different levels of barley and wheat bran. Lambs were fed concentrate feed at 3% of live body weight on a dry matter basis with 200 grams of roughage (straw) day/lamb. The results of this study indicated that the addition of 11% corn gluten meal (T3) significantly (p≤0.05) higher in final weight, average daily gain, total weight and feed conversion efficiency compared to the addition of soybean alone or mixture soybeans with corn gluten meal. The results also showed that there were no significant differences in total protein concentration, albumin and globulin concentration, triglyceride concentration, cholesterol and urea concentrations in serum, and creatinine concentration.

This study was conducted in the animal field of the College of Agriculture University of Tikrit for a period of 70days precession this period 14 day as adaptation starting from 8/10/2020 to 16/12/2020. Sixteen Awassi lambs were used, aged 5-6 months, with an average weight of 26.2 ± 0.3 kg. The experimental treatments were, first, the control 98% barley (farmer diet), the second 88% barley + 5% soybean meal+ 5% vegetable fat and the third 83% barley + 10% Soybean meal+ 5% fat and the fourth 78% barley + 15% soybeans+ 5% fat with addition to 1% salts and 1% vitamins and minerals for all treatment. The lambs were fed concentrate feed at 3% of live weight on a dry matter basis with 100 grams/day/lamb straw. The results showed that second, third and fourth treatments significantly (P≤0.05) improved final weight, average daily weight gain and feed conversion ratio compared to the first treatment, the third and fourth treatments (P≤0.05) increased in the daily weight gain, final weight and feed conversion efficiency compared to the second treatment. Significant (P≤0.05) differences were also found in some biochemical characteristics of blood, as increased in percentage of Triglycerides, blood urea and albumin in fourth treatment of lambs compared to ether experimental treatment, while no significant differences were found between experiment groups in proportion of glucose, creatinine, total protein, and the enzyme AST and ALT. note that all blood measurements of the experiment lambs were within normal limits.

This study was conducted at Department of Animal production farm College of Agriculture University of Tikrit from 6/12/2017 until 21/2/2018 (77days) . Sixteen Awassi lambs were used, aged 4-5 months and average weight 23.38±0.14 Kg . Lambs were divided in to four groups (four lambs at each group) according to their weight, treatments distributed randomly into the groups.Individual feeding was used which included four concentrate diet with different levels of biochar (0% ,1% , 2% and 3% ).Statistical analysis results showed that there was a significant increase (P<0.05) in the final weight for second group (1% biochar) compared with fourth group, also result showed a significant increase (P<0.05) for second group in the average daily gain and final body gain and feed conversion ratio compared with third and fourth groups. Also significant increase (P> 0.05) in the second group in hot and cold carcass weight and in the percentage Dressing based on hot and cold weight, relative to live weight as well as empty body weight and in Rib-eye muscle area compared with the other groups.