Abstract
BackgroundBroilers are continuously stressed because of the rapid growth rate and the environmental issues associated with industrialized poultry production systems, which lead to higher susceptibility for infection with pathogens. It is well known that vitamin E (Vit. E) and selenium (Se) supplementation have protective functions in such stressful conditions. This protocol was to investigate the impact of Vit. E and/or Se on the production performance, some serum biochemistry, and expression of some growth-related gene in the liver tissue of the broilers. The day-old chicks were allotted into four groups according to the supplement; Control group and groups supplemented with Vit. E and/or Se into Vit. E group (100 mg Vit. E/kg diet), Se group (0.3 mg sodium selenite/kg diet), and Vit E + Se group that supplemented with both Vit. E and Se.ResultsThe data of the present experiment showed that dietary inclusion of Vit. E and/or Se significantly (P ≤ 0.05) improved the production parameters without any side effect on the general health status of the broilers, which indicated by normal serum biochemical parameters. Moreover, the treatments positively affected the expression of some genes related to growth performance including growth hormone receptor (GHR) and insulin-like growth factor 1 (IGF1) in the liver tissue of broilers.ConclusionDietary supplementation of Vit. E and/or Se improved the production parameters and upregulate the growth-related genes without effect on the general health status of the broilers.
Highlights
Broilers are continuously stressed because of the rapid growth rate and the environmental issues associated with industrialized poultry production systems [6], which lead to higher susceptibility for the infection with pathogens [7]
E group) significantly increased (P ≥ 0.05) body weight when compared with the control and Se groups from the second week until the end of the experimental period
E and Se) has shown an increase in the body weight and weight gain of broilers [18, 19]. These results are in line with Salahuddin et al [20] who showed that dietary vitamin E and selenium (100 mg and 0.22 mg/kg diet for vitamin E and selenium, respectively) improves the live body weight and gain
Summary
Broilers are continuously stressed because of the rapid growth rate and the environmental issues associated with industrialized poultry production systems, which lead to higher susceptibility for infection with pathogens. It is well known that vitamin E (Vit. E) and selenium (Se) supplementation have protective functions in such stressful conditions. E) and selenium (Se) supplementation have protective functions in such stressful conditions This protocol was to investigate the impact of Vit. E and/or Se on the production performance, some serum biochemistry, and expression of some growth-related gene in the liver tissue of the broilers. Vitamin E is located in the membrane lipid bilayer hydrocarbon part towards the membrane interface near to oxidase enzymes, which initiate free radicals production [10]. These free radicals are generated as a result of normal cell activity and increase due to several stress factors [11]. Vitamin E is considered a natural antioxidant found in food and known as alpha-tocopherol [11] and National Research Council (NRC) [13] currently recommends 10 IU of vitamin E/kg diet to satisfy poultry’s nutritional requirements
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