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Effect of probiotic bacteria-fermented medicinal plants (Gynura procumbens, Rehmannia glutinosa, Scutellaria baicalensis) as performance enhancers in growing pigs.

This study was conducted to investigate the effect of dietary supplementation of mixed fermented medicinal plants (FMP) obtained from exudates of Gynura procumbens, Rehmannia glutinosa and Scutellaria baicalensis fermented with Lactobacillus plantarum, Saccharomyces cerevisiae and Bacillus licheniformis, respectively, on growth performance in growing pigs in order to assess the feasibility of using FMP as an alternative to antibiotic growth promoters (AGP), such as tiamulin. A total of 150 growing pigs (body wieght 25.50 ± 2.50 kg) were used in a 6 weeks experiment and randomly divided into five groups with six replicates of five growing pigs each. The treatments were NC (basal diet), basal diet with 33 ppm tiamulin (PC), basal diet with FMP 0.05% (FMP 0.05), basal diet with FMP 0.1% (FMP 0.1) and basal diet with FMP 0.2% (FMP 0.2). Overall, body weight gain, feed conversion rate, the digestibility of dry matter and gross energy, noxious gas emission all improved with FMP supplementation as compared to NC. Taken together, these results suggest the feasibility of using FMP as an alternative to AGP for enhancing the growth performance, nutrient digestibility and excreta noxious gas emission of growing pigs.