ORIGINAL PAPER
Effect of dried roots of Astragalus membranaceus in the diets of young growing pigs on growth performance and immune function
Y. L. Hu 1,   C. L. Xu 2  
,   Y. Z. Wang 2  
,   Y. J. Li 2,   J. X. Liu 3,   J. Feng 2
 
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1
Zhengzhou College of Animal Husbandry Engineering, Zhengzhou, 450008, P.R. China
2
Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Feed Science Institute, Zhejiang University, No. 164 Qiutao North Road, Hangzhou, 310029, P.R. China
3
Institute of Dairy Science and Industry, Zhejiang University, Hangzhou, 310029, P.R. China
CORRESPONDING AUTHOR
C. L. Xu   

Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Feed Science Institute, Zhejiang University, No. 164 Qiutao North Road, Hangzhou, 310029, P.R. China
Y. Z. Wang   

Key Laboratory of Molecular Animal Nutrition of Ministry of Education, Feed Science Institute, Zhejiang University, No. 164 Qiutao North Road, Hangzhou, 310029, P.R. China
Publication date: 2006-11-06
 
J. Anim. Feed Sci. 2006;15(4):599–607
 
KEYWORDS
ABSTRACT
The experiment was conducted to investigate the effect of Astragalus powder prepared by using different comminution techniques on growth performance and immune function of pigs. Duroc×Landrace×Yorkshire young growing pigs (n=90, female, 60 days of age, liveweight 21.88±1.26 kg) were randomly allocated to three treatments. Each treatment had three replicates with ten pigs per pen. The basal diets were not supplemented or supplemented (5 g/kg) with 80 mesh Astragalus (180 μm), or micron Astragalus (6.32 μm), respectively; the feeding experiment lasted 30 days. After completion of the feeding experiment, three animals from each treatment were chosen to determine the effect of Astragalus on immune function. Results showed that supplementation with micron Astragalus significantly increased (P<0.05) average daily gain (ADG), both Concanavalin (ConA) and lipopolysaccharide (LPS)-induced splenocyte and peripheral lymphocyte proliferation, and significantly increased (P<0.05) serum IgG, IgA, IL-1α and IL-2 concentrations compared with the control groups. Supplementation with 80 mesh Astragalus only increased (P<0.05) serum IgA, IL-1α and IL-2 concentrations compared with control. The results indicated that micron Astragalus was more effective than 80 mesh Astragalus in improving growth performance and enhancing immune function of pigs.
 
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2.
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Antifungal activities of Astragalus verus Olivier. against Trichophyton verrucosum on in vitro and in vivo guinea pig model of dermatophytosis
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6.
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R. X. Lan, J. W. Park, D. W. Lee, I. H. Kim
Journal of Animal Physiology and Animal Nutrition
 
7.
Improving low-temperature stress tolerance of tilapia, Oreochromis niloticus : A functional analysis of Astragalus membranaceus
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8.
Reclamation of Astragalus By-Product through Dietary Inclusion in Ruminant Diets: Effects on Growth Performance, Nutrient Digestibility, Rumen Fermentation, Blood Biochemical Parameters, and Humoral Immune Response in Sheep
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Evidence-Based Complementary and Alternative Medicine
 
9.
Dietary Astragalus membranaceus and Codonopsis pilosula extracts mixture supplementation increases the growth performance and foot-and mouth disease antibody titers in growing-finishing pigs
Lei Cheng, Yan Lei, In Kim
Livestock Science
 
ISSN:1230-1388