中草药制剂对肉鸽生长性能, 血清抗氧化性能 及肠道消化酶活性的影响.

The study aims to explore the effects of different levels of herbal preparation on growth performance, serum antioxidant index and serum immune index intestinal enzyme activity in pigeons. In the experiment, 360 pigeons in good health and of similar weight were selected, randomly divided into 4 groups (group CK, group A, group B, group C), with 5 replicates in each group and 18 pigeons in each replicate. The group CK group was fed with basal diet, and the group A, group B and group C were fed with 0.01, 0.025 g/kg and 0.05 g/kg Chinese herbal preparations, respectively. The test period was 37 d, the pre-feeding period was 7 d, and the formal test period was 30 d. The results showed that: ① The final weight in group B was significantly higher than that in the group CK (P<0.05). ② In terms of serum antioxidant performance, T-AOC in group C was significantly higher than group CK, A and B (P<0.05), GSH-Px in group C was significantly or significantly higher than that in groups A, B and CK (P<0.01), and the difference between other indicators and groups was not significant, but the MDA in group B was reduced by 2.6% compared withgroup CK. ③ In terms of serum immune performance, IgA, IgM, IgG, IL-2 in B were significantly higher than group CK; complement C3 in group B was significantly higher than group CK (P<0.01), significantly higher than group A (P<0.05); complement C4 in group B was significantly higher than group CK and group A (P<0.01), IL-4 and IL-6 in group B were significantly or significantly higher than group A (P<0.05) and CK group (P<0.01), and IFN-γ in group B was significantly higher than group CK (P<0.01). ④ In terms of intestinal enzyme activity, the chymotrypsin activity in the ileum of group CK was significantly higher than that in group A (P<0.05), and that in group B was significantly higher than that in group A (P<0.01), with no significant effect on the duodenal digestive enzyme activity. In conclusion, under the conditions of this experiment, dietary herbal preparation effectively improved the growth performance of pigeons, significantly improved the antioxidant performance and immune function level of serum, and changed the activity of intestinal digestive enzymes, with the best effect of 0.025 g/kg. [ABSTRACT FROM AUTHOR]