Broiler chicks were orally dosed with a hot-water extract of mycelia from Cordyceps sinensis (CS-HW) to assess possible substitution of Avilamycin as an antibiotic growth promoter (AGP). The growth performance (body weight gain and survivability) and the health index (the microflora in the small intestines and the antibody titer to Newcastle disease virus) of chicks were significantly improved in the CS-HW (600 mg/kg diet) and the Avilamycin (20 mg/kg diet) fed group in comparison with the control group (p<0.05). The Avilamycin-fed group and the CS-HW-fed group had similar growth performances but the latter gave a better microbial flora in the small intestines. These results indicate that CS-HW enhances the physiological activity in chicks and can be used as a substitute for AGPs.
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Koh, J.H., Suh, H.J. & Ahn, T.S. Hot-water extract from mycelia of Cordyceps sinensis as a substitute for antibiotic growth promoters. Biotechnology Letters 25, 585–590 (2003). https://doi.org/10.1023/A:1022893000418
- antibiotic growth promoters
- Cordyceps sinensis
- intestinal microflora