This experiment was conducted to study the effects of Acathopanas senticosus polysaccharides (ASPS) on growth performance, serum immune indices and microbial flora in feces of weaner piglets. Ninety-six 28-day-old weaner piglets (Landrace×Yorkshire) with an average body weight of (7.125±0.576) kg were randomly allocated into 6 groups with 4 replicates in each group and 4 piglets in each replicate. Piglets in group Ⅰ (control) was fed a basal diet, and those in groups Ⅱ to Ⅵ were fed the basal diet supplemented with 150, 300, 500, 800 and 1 000 mg/kg ASPS, respectively. Piglets were raised for 21 days. The results showed as follows: 1) the supplementation of ASPS significantly increased average daily gain (ADG) of weaner piglets in groups Ⅳ, Ⅴ and Ⅵ at 1 to 21 days of experiment (P<0.05), and compared with the control group, feed/gain (F/G) of weaner piglets in groups Ⅲ, Ⅳ, Ⅴ and Ⅵ at 15 to 21 days of experiment and diarrhea rate of weaner piglets in groups Ⅱ to Ⅵ at 1 to 21 days of experiment were significantly decreased (P<0.05), but no significant difference was found in average daily feed intake (ADFI) of weaner piglets at 1 to 21 days of experiment (P>0.05). 2) The supplementation of ASPS significantly increased serum immunoglobulin A (IgA) content of weaner piglets in groups Ⅲ, Ⅳ and Ⅴ at 1 to 21 days of experiment (P<0.05), immunoglobulin G (IgG) content in groups Ⅲ, Ⅳ and Ⅴ at 1 to 14 days of experiment and in groups Ⅳ and Ⅴ at 1 to 21 days of experiment (P<0.05), and immunoglobulin M (IgM) content in group Ⅴ at 1 to 21 days of experiment (P<0.05). 3) The supplementation of ASPS significantly increased the number of Lactobacilli and Bifidobacterium in feces of weaner piglets (P<0.05), and significantly decreased the number of Escherichia coli (P<0.05). It is concluded that 800 mg/kg ASPS in diets for piglets is the best.
YANG Kankan
,
BIAN Lianquan
,
LIU Xianjun
,
HAN Jie
,
ZHANG Fei
. Acathopanas Senticosus Polysaccharides: Effects on Growth Performance, Serum Immune Indices and Microbial Flora in Feces of Weaner Piglets[J]. Chinese Journal of Animal Nutrition, 2013
, 25(3)
: 628
-634
.
DOI: 10.3969/j.issn.1006-267x.2013.03.022
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