<Emphasis Type="Italic">Astragalus membranaceus</Emphasis> (AM) enhances growth performance and antioxidant stress profiles in bluegill sunfish (<Emphasis Type="Italic">Lepomis macrochirus</Emphasis>) |
| |
| Authors: | Hiam Elabd Han-Ping Wang Adel Shaheen Hong Yao Amany Abbass |
| |
| Institution: | 1.Aquaculture Genetics and Breeding Laboratory,The Ohio State University South Centers,Piketon,USA;2.Department of Fish Diseases and Management, Faculty of Veterinary Medicine,Benha University,Moshtohor, Toukh,Egypt |
| |
| Abstract: | This study was designed to assess the potential effects of Astragalus membranaceus (AM) on the growth performance and antioxidative stress response in bluegill sunfish (Lepomis macrochirus) exposed to challenging cold water temperature conditions. In this regard, fish with an average weight of 43 ± 1 g were divided into four groups and fed daily with an AM-free diet (control), and 1.5, 3, and 4.5 % (w/w) AM-incorporated diets for an 8-week period. Oxidative stress response, biochemical, and growth parameters were measured, and subgroups of fish were exposed to the outside challenging cold pond water temperature (1.6–9.9 °C) with an average of 7.0 ± 0.1 °C beyond the optimal temperature. The results showed that incorporating AM in the diet significantly improved growth performance parameters (body mass gain, specific growth rate, length, condition factor, and feed conversion ratio) and biochemicals (aspartate aminotransferase and alanine transaminase activities, and glucose and cortisol concentrations). In addition, markedly up-regulated superoxide dismutase, glutathione peroxidase, and catalase activities were observed in AM-treated fish groups over the control. Conclusively, feeding AM diets significantly increased (P < 0.05) growth performance and antioxidative stress profiles throughout the entire experiment, and this increase was much more pronounced at 8 weeks after the water temperature began to rise, which can be related to the nature of Bluegill fish as it is known to be a warm water fish. These findings are considered to be of great importance for sustainable aquaculture. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
