Abstract
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.
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