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http://dx.doi.org/10.5187/JAST.2007.49.3.321

Effects of Herb Mix® Supplementation on the Performance of Weanling Pigs  

Lee, W.S. (Department of Animal Science and Technology, College of Industrial Science, Chung-Ang University)
Paik, I.K. (Department of Animal Science and Technology, College of Industrial Science, Chung-Ang University)
Publication Information
Journal of Animal Science and Technology / v.49, no.3, 2007 , pp. 321-328 More about this Journal
Abstract
Two pig trials were conducted to test Herb MixⓇ, a mixture of Rehmannia glutinosa, Angelica gigas, Discorea japonica, Glycyrrhiza uralensis, Schisandra chinensis and Ligusticum jeholense, as a herbal additive to weaning pig diet. Exp. 1 was conducted with 45 three-way cross-bred(Y×L×D) weaning pigs randomly allocated to 3 treatments; control, Herb MixⓇ 0.15% and Herb MixⓇ Gold(Plellidendron amurense fortified Herb MixⓇ) 0.15%. Exp. 2 was conducted with 48 weaning pigs randomly allocated to 4 treatments; control, 0.1%, 0.2% and 0.3% Herb MixⓇ. There was a significant(p=0.05) difference between the control and herbal additive groups, however, no significant difference was found between Herb MixⓇ and Herb MixⓇ Gold in growth performance of Exp. 1. In Ex. 2, supplementation of Herb MixⓇ at all level(0.1%, 0.2% and 0.3%) significantly(P<0.05) improved average daily gain and feed intake, however, there were no significant differences among supplemented groups. Among the blood parameters, serum IgG level and WBC numbers were significantly lowered by Herb Mix supplementation in both experiments. Stress indicator(SI) was significantly lower in herbal additive groups in Exp. 1. Nutrient digestibility of DM and NFE in supplemented groups was lower than the control in Exp. 1. Howener, it was not significantly different among treatments in Exp. 2. Number(cfu) of fecal E.coli decreased while that of Lactobacilli increased in treated groups. It was concluded that fortifying Herb MixⓇ with Plellidendron amurense was not effective in improving the efficacy of Herb MixⓇ and supplementation of Herb MixⓇ at 0.1~0.2% level improves growth performance of weaning pigs. Blood parameters especially immunity related ones(IgG, WBC and SI) were significantly influenced.
Keywords
Herb Mix$^{(R)}$; Herbal additive; Weaning pigs; Performance; IgG; Leucocytes; Stress indicator;
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