Abstract
This study was conducted at the Animal Production Department/ College of the Agriculture/ University of Diyala from 15/9/2021 to 15/10/2021 to investigate the effect of injecting D-aspartic amino acid in Shami Bucks on some blood biochemical and hormonal characteristics. Twelve's Shami Bucks aged between 1.5-2 years, and body weight ranged between 35-40 kg. The animals were divided into four groups (treatments) with three replicates among each group as follows, T1 (control group) was injected with normal saline only, T2, T3 and T4 groups were injected i.m. with D-aspartic acid as follows, 125 mg, 250 mg and 375 mg for T2, T3 and T4 groups respectively, every 48 hours in the afternoon. Blood samples were collected from the jugular vein, and serum was taken and stored at -20 ° C until analyzed. The results of the present study also indicated significant differences (P<0.05) of FSH (1.37±2.59, 1.45±0.89, 1.87±1.76 and 0.77±0.45) and LH (1.96±1.56, 2.19 ± 0.22, 2.22±1.44 and 1.11±1.30) respectively for the T2, T3 and T4 treatments as compared with the T1 (control group). The results showed a significant increase (P<0.05) of total protein (6.23±0.02, 6.26±0.39, 6.46±1.23 and 4.35±0.12), albumin (4.36±1.24, 4.56±1.00, 4.75±1.34 and 3.34±0.11), globulin (1.87±1.33, 1.70±0.11, 1.71±0.01 and 1.01±1.22) and blood urea (6.45±0.23, 6.43±1.39, 6.56±1.56 and 5.22±1.25) respectively for the T2, T3 and T4 treatments as compared with the T1 (control group). While no significant differences between all experimental treatments in the concentrations of thyroid hormones (T4, T3), cholesterol and triglycerides. It can be concluded from the present study that injection of D-aspartic acid had a significant effect on some biochemical blood traits and the level of pituitary sex hormones. Keywords: D-Aspartic acid, Shami Bucks, biochemical parameters, sex hormones
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