鱼腥草粉对平坝灰鹅生长性能以及血清生化、免疫指标的影响OA

This experiment was conducted to investigate the effects of Houttuynia cordata powder on the growth performance,serum biochemical indices,and immune indices of Pingba Grey geese.A total of 180 one-day-old Pingba Grey goslings were randomly divided into four groups,each with three replicates of 15 goslings.The blank control group was fed a basal diet,while experimental groups Ⅰ,Ⅱ,and Ⅲ were fed the basal diet supplemented with 1％,3％,and 5％Houttuynia cordata powder,respectively.The experimental period lasted 28 days.The results showed that the final body weight and average daily gain of goslings in group Ⅱ were significantly higher than those of group Ⅲ(P<0.05),and the feed to gain ratio was significantly lower than that of group Ⅲ(P<0.05).Compared with the blank control group,the serum triglyceride(TG)content of goslings in group Ⅲ was significantly increased(P<0.05),and the serum glucose(GLU)content of goslings in group Ⅱ was significantly increased(P<0.05).Compared with the blank control group,the serum immunoglobulin A(IgA)content of goslings in all experimental groups was significantly increased(P<0.05),the serum immunoglobulin G(IgG)content of goslings in groups Ⅰ and Ⅱ was significantly increased(P<0.05),and the serum immunoglobulin M(IgM)content of goslings in groups Ⅱ and Ⅲ was significantly increased(P<0.05).The study indicates that supplementing the diet with different proportions of Houttuynia cordata powder does not negatively affect the growth performance of Pingba Grey geese,and at an appropriate supplementation level,it can improve nutrient metabolism and enhance immunity,with the optimal level being 3％.