This study aims to investigate the effect of using vitamins A, E, and D3 with or without omega-3 on the productive performance and some physiological characteristics of local Iraqi female lambs. Twelve female Iraqi Awassi lambs with an average body weight of 16.737 ±2.08 kg and ages ranging from 90±7 days were used. Three groups, each with four lambs, were randomly selected from among the experimental animals. As the control group, (T1) had not acquired any treatment at all. The second group (T2) acquired intramuscular injections of vitamins A, D3, and E of 1.5 ml supported with omega-3 of 1.5 ml and the 3rd group (T3) acquired intramuscular injections of the same vitamins, (on the 15th of December, first of January, 15th of January, first of February and 15th February, five times with a fifteen-day gap between each injection). The animals were nourished on a concentrated diet consisting of 1.5% BW (mixture of barley grains and wheat bran) water, minerals bloke supplement, and alfalfa hay had given ad libitum. The result of the experiment showed That group 2 (T2) had significantly increased (P≤0.05) compared with group 1 (T1) in the second period (p2) of the experiment average of life body weight. group 2 (T2) had significantly superior (P≤0.01) compared with group1 (T1( and group 3 (T3) at p2 in chest girth, estrogen hormone and white blood cell (WBC), while group 2 (T2) had significantly increased (P≤0.05) compared with group1 (T1( in red blood cell (RBC) at third period (P3), whereas group1 (T1( and recorded a significantly increased (P≤0.01) as compared with group 3 (T3) at P2 in haemoglobin concentration. In conclusion, treating female lambs with omega-3-supplemented vitamins A, E, and D3 improved their body weight gain and some physiological characteristics.
Key words: nutrition, ruminants, vitamines, Omega
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