Abstract
The study was established in local farm sheep in Muwafaqia / Wasit - Iraq, from 1/10/2018 until 15/1/2019, to evaluate the effect of adding selenium with or without Vitamin E on some of the physiological characteristics of Awassi male lambs. Sixteen lambs were selected after weaning with an average weight of (24.30) kg and aged (3-4) months. All lambs fed 2% of body weight with a concentrated diet and randomly divided into (4) groups. Control group (no additives), Selenium group (0.4 mg selenium), Vitamin group (100 mg vitamin E) and combination of selenium + vitamin E group (0.4 mg selenium + 100 mg vitamin E) per kg dietary dry matter for 90 days. At the end of the experiment, blood parameters (white blood cell (WBC), red blood cell (RBC), packed cell volume (PCV), hemoglobin (HB), mean concentration hemoglobin (MCH), and mean concentration hemoglobin count (MCHC) and stress parameters were measured. The result showed selenium + vitamin E and selenium treatments significantly increased (p <0.05) in PCV as compared with vitamin treatment and the control group. While treatment of vitamin significantly increased (p <0.05) in hemoglobin concentration compared to treatment of combination selenium + vitamin E. Stress parameters such as respiratory rate and heartbeat decreased significantly (p <0.05) in treatment of combination selenium + vitamin E compared to other treatments. There were no significant differences between the study treatments in the WBC count
Highlights
The content of mineral elements provided to farm animals through diet depends on many factors, including soil characteristics, its content of mineral elements, and the period of plant growth, as deficient nutrition of mineral elements causes multiple symptoms such as poor growth, low production, and high mortality (Mazokopakis and Protopapadakis, 2007)
The study was established in local farm sheep in Muwafaqia / Wasit - Iraq, from 1/10/2018 until 15/1/2019, to evaluate the effect of adding selenium with or without Vitamin E on some of the physiological characteristics of Awassi male lambs
This study aims to investigate the effect of selenium and vitamin E supplementation on the blood and stress parameters of Awassi lambs after weaning
Summary
The content of mineral elements provided to farm animals through diet depends on many factors, including soil characteristics, its content of mineral elements, and the period of plant growth, as deficient nutrition of mineral elements causes multiple symptoms such as poor growth, low production, and high mortality (Mazokopakis and Protopapadakis, 2007). Most environments in the world suffer from a deficiency of selenium in plants, and it is necessary to provide it in the diets of ruminants, especially in areas that suffer from an acute deficiency of this element (Flohé et al, 2000). One of the recent studies proved that selenium has a role in reducing oxidative stress resulting from low glutathione peroxidase enzyme concentrations in ruminants Many studies have indicated that selenium affects the blood parameters in goats (Diaz-Sanchez et al, 2017), cows (Slavik et al, 2008), and sheep (Boldizarova et al, 2005). Vitamin E is important for animal growth and improving the health and immune status throughout improving the blood picture (Daramola et al, 2016)
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