In this study, a total of 312 Hyline brown laying hen of 1.92 ± 0.12 kg acquired at 24-wk old were employed to evaluate the pharmaceutical effect of Korean wild ginseng residue extract administered via drinking water on the performance, microbiota quality, cytokine expression, and the ginsenoside saponin (GS) content of laying hen for 12 wk. In the experiments, basic feed (CON) was compared with basic feed + 0.05% wild ginseng in drinking water (WGD1), basic feed + 0.1% wild ginseng in drinking water (WGD2), and basic feed + 0.5% wild ginseng in drinking water (WGD3). At the end of study, hen-day egg production (HDEP), average egg weight (AEW), and egg mass (EM) were linearly higher (p < 0.05) in WGD3 at wk 30 to 33, 34 to 37 wk, and the cumulative wk compared with CON. Feed conversion ratio (FCR) was linearly lower in WGD3 at 34 to 37 wk, and the cumulative wk compared with CON. Relative expression of tumor necrosis factor alpha (TNF-α) was linearly lower (p < 0.05) in the WGD3 at wk 30 to 33, and 34 to 37 wk compared with CON. The GS in egg yolk was linearly higher (p < 0.05) in laying hens supplemented the WGD3 treatment at wk 34 to 37, while the fecal microflora quantity of Lactobacillus was linearly higher (p < 0.05) in WGD3 at wk 30 to 33, till 34 to 37 wk, and Escherichia coli (E. coli) was linearly lower (p < 0.05) in the WGD2 and WGD3 from 2637 wk compared with CON. We concluded the result in HDEP, AEW, EM, and FCR were due to the increase in GS content, tentatively leading to an improvement in the TNF-α, and fecal microflora quality such as Lactobacillus and E. coli in the WGD3. We therefore recommend the use of WGD3 at application level 0.5% in drinking water for optimum laying performance from 30 to 37 wk.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10844852PMC
http://dx.doi.org/10.1016/j.psj.2024.103467DOI Listing

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