Effects of adding Paederia scandens(Lour.)Merr.extracts on the production performances and immune function of Ding'an goose during 9～12 weeks
To explore the effects of extracts from Paederia scandens(Lour.)Merr.on growth performance and immune function of Ding'an geese,240 63-day-old Ding'an geese were randomly divided into four groups with three replicates each group,20 geese each replicate.One group was fed with basic diet(control group).The other three groups were fed with 0.5%,1% and 2% extracts of Paederia scandens(Lour.)Merr,presented as experimental group 1,2 and 3 respectively.The experimental period was 28 days.The results showed that average daily gain of geese with adding 1% and 2% extracts of Paederia scandens(Lour.)Merr(experimental group 2 and 3)was significantly higher than that in control group(P＜0.05).For blood immune indexes,the total protein,albumin,IgA,IgG concentration,CD8 content,CD4/CD8 value and the positive rate of the T lymphocyte of geese in experimental group 2 and test group 3 were significantly higher than those of control group(P＜0.05).The levels of complement C3,complement C4,and CD4 in experimental group 2 and test group 3 were significantly elevated compared to the control group(P＜0.01).The results indicated that the production performances and immune function of Ding'an goose could be enhanced by adding the extract of Paederia scandens(Lour.)Merr.to the basic diet.
Paederia scandens(Lour.)Merr.Ding'an goosegrowth propertiesImmune function
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