Journal
ANIMAL SCIENCE JOURNAL
Volume 90, Issue 6, Pages 747-756Publisher
WILEY
DOI: 10.1111/asj.13213
Keywords
antioxidant status; immunological parameter; intestinal bacteria; quail; the stems and leaves of Astragalus membranaceus
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Funding
- Shanxi Province Program of Research on Key Technologies of Modernization of Traditional Chinese Medicine [2016ZD0506]
- PhD Research Startup Foundation of Shanxi University of Chinese Medicine [2015BK11]
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This study was designed to evaluate the potential application of the stems and leaves of Astragalus membranaceus (AMSL) in the poultry industry. Quails were divided into four groups and fed daily with an AMSL-free diet (control) or with 1%, 3%, or 5% (w/w) AMSL-incorporated diets for 35 days. The results showed that supplementing AMSL in the diet, especially at a concentration of 3%, increased daily gain and feed intake during the entire experiment (p < 0.05). The immune organ development of the thymus and bursa of Fabricius was promoted, and the immune system was enhanced by increasing the quantities of IgA and complements C3 and C4 (p < 0.05). The total antioxidant capacity and the activities of glutathione peroxidase and catalase were increased (p < 0.05). Moreover, the 3%-5% AMSL groups regulated the intestinal flora by promoting the proliferation of lactic acid bacteria and inhibiting the growth of coliform bacteria (p < 0.05). In conclusion, feeding incorporated diets with appropriate AMSL levels significantly increased growth performance, strengthened the immune system, improved antioxidative status, and regulated the intestinal microflora of quails, suggesting that AMSL has the potential to serve as a feed additive in the poultry industry.
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