This experiment was conducted to investigate the effects of dietary Acanthopanax senticosus polysaccharide (ASPS) on growth performance and immune parameters of weaner piglets. This experiment was a 21-d growth assay, in which ninety-six (28±3)-day-old 'Landrac×Yorkshire’ crossbred weaner pigs with an average body weight of (7.13±0.67) kg were randomly allotted to 6 dietary treatments supplemented with 0 (control), 150, 300, 500, 800 and 1 000 mg/kg of ASPS, respectively. Each treatment was replicated in 4 pens containing 4 pigs per pen. The results showed that compared with the control, diets supplemented with 500 and 800 mg/kg ASPS could extremely significantly improve final body weight and average daily gain (P<0.01), as well as extremely significantly reduced diarrhea ratio (P<0.01), however, the supplementation of ASPS did not significantly affect average daily feed intake and feed to gain ratio (P>0.05). Final body weight, average daily gain and diarrhea ratio were affected quadratically with the increase of dietary ASPS supplemental level (P<0.01) and feed to gain ratio was improved linearly (P<0.05). The supplementation of 800 mg/kg ASPS extremely significantly increased peripheral blood lymphocyte proliferation (P<0.01) and significantly reduced serum cortisol level (P<0.05), and the two parameters changed linearly (P<0.01). The results indicate that the supplementation of ASPS can significantly increase average daily gain and decrease diarrhea ratio, improve immune parameters, and reduce the diarrhea ratio and stress degree of weaner piglets. The optimum supplemental level of ASPS in diets for weaner piglets is 800 mg/kg.
HAN Jie
,
BIAN Lianquan
,
LIU Xianjun
,
ZHANG Fei
,
YANG Kankan
. Effects of Dietary Acanthopanax senticosus Polysaccharide on Growth Performance and Immune Parameters of Weaner Piglets[J]. Chinese Journal of Animal Nutrition, 2012
, (11)
: 2203
-2209
.
DOI: 10.3969/j.issn.1006-267x.2012.11.019
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