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Abstract
The study was conducted to evaluate effects of dietary supplementation with Ligustrum lucidum (LL, 10 g/kg), Schisandra chinensis (SC, 10 g/kg), LL (10 g/kg) + mannan oligosaccharides (MOS, 50 mg/kg), or SC (10 g/kg) + MOS (50 mg/kg) on growth performance and parameters of antioxidative and immunological status of broilers. The results showed that feeding LL, SC, LL + MOS, or SC + MOS had no significant effect on growth performance of broilers relative to the control. However, compared to the control, LL, SC, LL + MOS, or SC + MOS significantly decreased malondialdehyde concentration in serum, thigh, and heart of broilers. In addition, glutathione reductase activity of heart and sera of the birds were significantly elevated by supplementation LL, SC, LL + MOS, or SC + MOS. Furthermore, LL, SC, LL + MOS, or SC + MOS significantly improved antibody titres against Newcastle disease virus and lymphocyte proliferation of broilers (p < 0.05). Whereas, no cooperating effect between LL (or SC) and MOS on antioxidant status and immunity of broilers were found.
Acknowledgements
The study was supported by national basic research program of China (2004CB117505).