The effect of adding polysaccharides from Atractylodes macrocephala to feed on growth performance and immune function of fattening pigs
The aim of this study is to investigate the effects of dietary addition of Atractylodes macrocephalon polysaccharide (AMP)on the growth performance and immune function of fattening pigs. 320 healthy ternary hybrid pigs(average weight 46.17±3.54 kg)were randomly divided into 4 groups based on the principles of male,female,and body weight,with 8 replicates in each group and 10 pigs per replicate. Adopting a three-stage feeding mode,each stage is 29 days,28 days,and 26 days,respectively. Add 0,150,300,and 600 mg/kg of Atractylodes macrocephala polysaccharides to the experimental feed at each stage. From day 1 to 29,compared with the control group,the ADG of piglets in the AMP groups of 600 and 1200 mg/kg significantly increased by 5.75％ and 5.15％(P<0.05),and the F/G significantly decreased by 5.61％ and 5.12％(P<0.05);From 30 to 58 days,compared with the control group,the ADG of piglets in the AMP group at 600 mg/kg significantly increased by 3.19％,and the F/G significantly decreased by 2.24％(P<0.05);From 59 to 85 days,compared with the AMP group at 600 mg/kg,the ADFI of piglets in the AMP group at 1200 mg/kg significantly increased by 1.45％(P<0.05). From 1 to 85 days,compared with the control group,the F/G of piglets in the AMP groups at 600 and 1200 mg/kg significantly decreased by 3.23％(P>0.05). The addition of 300 mg/kg AMP to the diet significantly increased the spleen index of fattening pigs(P<0.05);AMP had no significant effect on the liver,kidney,inguinal lymph nodes,and thymus index of fattening pigs(P>0.05). 300 and 600 mg/kg AMP group for IL-10 and TNF in fattening pigs-α The content significantly decreased(P<0.05);The C3 content of fattening pigs in the AMP groups of 300 and 600 mg/kg was significantly increased(P<0.05);The serum p65 content of fattening pigs in the AMP group with a concentration of 150-600 mg/kg significantly decreased linearly(P>0.05). In summary,this experiment suggests that AMP at a concentration of 300 mg/kg has the best feeding effect on fattening pigs.
atractylodes macrocephalon polysaccharideweaned pigletsgrowth performanceserum biochemistryimmunologic function
万方数据
维普
