Effect of the injection of vitamins AD3E and the seasons on some blood traits, biochemical components and hormones of Arabi rams
The objective of this study was to determine the effect of the injection of different levels of AD3E vitamins in improving the productivity and reproductive performance of the Arabi rams in different seasons. This study was conducted in the animal field of the College of Agriculture - University of Basrah, Karmat Ali, for the period from December 2017 to March 2018 (three months winter) and June 2018 until September 2018 (three months in summer). The study used 21 Arabi sheep with 2.5 years old and weights from 55 to 60 kg, the animals were randomly distributed to three equal groups (each group of 7 rams). The control group was injected with a saline solution (distilled water), the second group with 2 ml of vitamin AD3E and the third group with 4 ml of vitamin AD3E, the injection was performed every two weeks. One month after the injection, the blood samples were collected (4 ml) from the jugular vein. Blood tests (RBC, Hb, PCV, and WBC) and blood plasma separation were performed. The chemical components (total protein, albumin, globulin), some enzymes (AST, ALT), and the hormones (testosterone, ICSH, FSH, and cortisol) were estimated. The summer months significantly (P < 0.05) affected the concentration of hormones (testosterone, ICSH, FSH, and cortisol). AST and ALT of Group 3 was significantly higher (P < 0.05) compared to the rest of the months. Total protein concentration, albumin, and globulin during December, August, and January were significantly higher (P < 0.05) over the rest of the months. G3 was also significantly higher (P < 0.05) than G2 and G1 in concentration. The results showed that WBC, PCV, Hb, and RBC of G3 recorded the highest values (P < 0.05) compared with G2 and G1 during summer.
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