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  • Title: Effects of Lonicera confusa and Astragali Radix extracts supplementation on egg production performance, egg quality, sensory evaluation, and antioxidative parameters of laying hens during the late laying period.
    Author: Xie T, Bai SP, Zhang KY, Ding XM, Wang JP, Zeng QF, Peng HW, Lu HY, Bai J, Xuan Y, Su ZW.
    Journal: Poult Sci; 2019 Oct 01; 98(10):4838-4847. PubMed ID: 30993339.
    Abstract:
    Lonicera confusa (LC) and Astragali Radix (AR) extracts have been shown to have antioxidant and anti-inflammatory activities in human. To determine whether LC or/and AR extracts had similar functions to improve the egg production and egg quality, 1,440 (52-wk-old) Lohmann pink-shell hens were randomly distributed into 4 treatments with nine replicates of 40 hens. The hens were fed a basal diet (CON) or the basal diet supplemented with 0.1% LC extracts, 0.1% AR extracts, or 0.1% LC extracts plus 0.1% AR extracts (LC-AR) for 12 wk. The eggs were collected on week 6 and 12 for analysis, and the plasma and ovaries were collected at end of trial. Dietary treatment did not influence (P < 0.05) egg production, egg weight, and feed conversion ratio. However, LC-AR addition increased (P < 0.02) yolk color and sensory quality of hard-boiled eggs compared to other groups. The LC-AR supplementation increased (P = 0.02), and LC addition tended to increase (P = 0.08) Haugh unit of eggs on week 12 compared to CON. The LC-AR supplementation decreased (P < 0.001), and LC or AR individual addition tended to decrease (P < 0.10) plasma malondialdehyde concentration compared to CON. Conversely, LC supplementation increased (P = 0.02) total superoxide dismutase activity, and LC or/and AR supplementation increased the activities of manganese-containing superoxide dismutase (MnSOD) (P < 0.08) and glutathione peroxidase (GSH-Px) (P < 0.01) in plasma, and the mRNA abundance of MnSOD, GSH-Px1, and catalase in ovaries (P < 0.05) compared to CON. The LC or/and AR supplementation decreased the concentrations of interleukin (IL)-6 and tumor necrosis factor alpha (TNF-α) in plasma (P < 0.05), and the mRNA abundance of IL-6 and TNF-α in ovaries (P < 0.04) compared to CON. These results suggested dietary inclusion of LC or/and AR improved the albumen quality, and a blend of LC and AR improved yolk color, which were associated with the enhancement of antioxidant capacity and the suppression of systemic inflammation in hens.
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