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http://dx.doi.org/10.5187/JAST.2003.45.6.987

Effects of the Artificial Culture Medium of Wild Ginsengs on Rumen Fermentation Characteristics In Vitro  

Bae, G.S. (Department of Animal Science & Technology, Chung-Ang University)
Nam, K.P. (Department of Animal Science & Technology, Chung-Ang University)
Kim, H.S. (Department of Animal Science & Technology, Chung-Ang University)
Lee, S.G. (Neobio Inc.)
Choi, H.S. (OOSOO.com Inc.)
Min, W.K. (Institute of Food Resource, Chung-Ang University)
Joo, J.W. (Department of Nutritional Resources, Konkuk University)
Maeng, W.J. (Department of Nutritional Resources, Konkuk University)
Chang, M.B. (Department of Animal Science & Technology, Chung-Ang University)
Publication Information
Journal of Animal Science and Technology / v.45, no.6, 2003 , pp. 987-996 More about this Journal
Abstract
This study was conducted to determine the effects of the artificial culture medium of wild-ginsengs on in vitro fermentation characteristics. NH$_3$-N concentration was showed the highest in 3% WGM treatment among all treatments and control. In addition, microbial protein synthesis was significantly different in all treatments throughout the incubation time, and WGM 3% treatment was the highest at the 9 h incubation(P〈0.05). Protozoa numbers within rumen were decreased in all WGM treatments at 9 h incubation time, whereas WGM 3% treatment was always decreased throughout the incubation(P〈0.05). NDF and ADF digestibility were proportionally increased as the incubation time in both control and treatments. NDF digestibility showed no significantly difference between control and the 3% treatment, and ADF digestibility was similar in all. Total volatile fatty acid(VFA) concentrations of WGM treatments without 5% were significantly higher than control (P〈0.05). No differences were observed in total VFA, acetate, propionate and butyrate concentration among the WGM treatments. Acetate/Propionate ratio of WGM treatments was higher than control after 12 h incubation(P〈0.05). As a result of the artificial culture medium of wild-ginseng on rumen fermentation characteristics in vitro, microbial protein synthesis of WGM treatment was higher than control, and WGM 3% was the highest in all treatments(P〈0.05). The effect of saponin in artificial culture medium of wild-ginseng tended to decrease NH$_3$-N concentration, while it increases the microbial synthesis in early incubation. Therefore, artificial cultures medium of wild-ginseng can increase utilization of feed by microbial and anti-protozoal effects of saponin, which may enhance microbial synthesis capacity in early fermentation period in rumen.
Keywords
Artificial culture; WGM; Wild-ginseng; in vitro; Saponin; Microbial protein;
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