Abstract:

This trial was conducted to investigate the effect of dietary Picriafel-tarrae Lour extracts on serum biochemical indexes and immune function of Guangxi Partridge chickens. 500 Guangxi Partridge chickens with 1 day old were randomly divided into 5 groups with 5 replicates per group and 20 chicks per replicate.Groups A,B and C were treatment groups and fed diets with 0.70%,0.35% and 0.175% Picriafel-tarrae Lour extracts,respectively,group D was a medical control group fed a diet with 0.01% colistin sulfate premix,and group E was control group fed basal diet. Serum samples were collected from 10 chicks in each group at 21,35 and 49 days old to analyze the biochemical and immune indexes. The results showed that compared with group E, the contents of GLU and TP were not significantly affected by the Picriafel-tarrae Lour extracts (P>0.05).However, in 21 and 35 days old, the TBILI content of groups A,B and C were extremely significantly or significantly reduced (P<0.01;P<0.05);At 35 days old,the activity of serum AKP of groups A,B and C were extremely significantly higher than that of group E (P<0.01),and the activity of serum GOT of group C at 21 and 35 days old were significantly higher than that of group E (P<0.05);At 49 days old,the serum IgG content of groups A,B,C and IL-2 of groups B and C were extremely significantly or significantly lower than those of group E (P<0.01;P<0.05);At 49 days old,the T-AOC of group B was significantly higher than group E (P<0.05);The GSH content of groups A,B and C at 49 days old were significantly increased than group E (P<0.05).In conclusion,the dietary Picriafel-tarrae Lour extract could significantly decreased the TBILI content,reduce the contents of IgG,IL-2 and IL-6, improve the activities of AKP and GOT,and the contents of T-AOC and GSH in some degree. The 0.35% additive amount had the better effects.

Key words: Picriafel-tarrae Lour extract; Guangxi Partridge chicken; serum biochemical index; immune index; antioxidant ability