黄芩茎叶对西门塔尔杂交牛生长性能及血清生化、免疫和抗氧化指标的影响

Effects of Scutellaria Baicalensis Stem and Leaf on Growth Performance and Serum Biochemical,Immune,Antioxidant Indexes of Simmental Crossbred Cattle

本试验旨在探究黄芩茎叶对西门塔尔杂交牛生长性能及血清生化、免疫和抗氧化指标的影响。选用体重(385.67±39.21) kg、体况良好的西门塔尔杂交公牛20头,随机分为4组,每组5头。各组分别饲喂添加0(对照)、3%、6%、9%的黄芩茎叶(干物质基础)的饲验饲粮。预试期15 d,正试期90 d。结果表明:1)各组之间终末体重差异不显著(P>0.05)。6%添加组的平均日增重和干物质采食量显著高于对照组和3%添加组(P<0.05),料重比显著低于对照组和3%添加组(P<0.05)。2)各组之间血清葡萄糖、尿素氮、免疫球蛋白A、免疫球蛋白G和免疫球蛋白M含量差异不显著(P> 0.05)。3%添加组的血清胆碱酯酶活性显著低于其他各组(P <0.05),血清丙二醛含量显著低于对照组和6%添加组(P<0.05);6%添加组的血清总蛋白、白蛋白和白细胞介素-6含量显著高于3%和9%添加组(P<0.05),血清肿瘤坏死因子-ɑ含量显著高于其他各组(P<0.05);9%添加组的血清肌酐含量显著低于对照组和6%添加组(P<0.05),血清白细胞介素-2含量显著低于其他各组(P <0.05),血清总抗氧化能力显著高于对照组(P <0.05),血清超氧化物歧化酶和谷胱甘肽过氧化物酶活性显著高于6%添加组(P<0.05);3%和9%添加组血清球蛋白含量显著低于对照组(P<0.05)。综上所述,饲粮中添加黄芩茎叶对西门塔尔杂交牛肝脏和肾脏功能没有影响,且能促进机体蛋白质合成代谢,提高机体免疫和抗氧化性能,从而提高生长性能,建议黄芩茎叶添加水平在6%~9%。

The purpose of this study was to investigate the effects of Scutellaria baicalensis stem and leaf on growth performance and serum biochemical,immune and antioxidant indexes of Simmental crossbred cattle.Twenty healthy Simmental crossbred bulls with body weight of(385.67±39.21)kg were randomly divided into 4 groups with 5 cattle in each group. Cattle in each group were fed experimental diets supplemented 0(control),3%,6% and 9% Scutellaria baicalensis stem and leaf(DM basis),respectively. The pre-test period was 15 days and the formal test period was 90 days. The results showed as follows:1)there was no significant difference in final body weight among all groups(P>0.05). The average daily gain and dry matter intake of6% addition group were significantly higher than those of control group and 3% addition group(P<0.05),and the feed to gain ratio was significantly lower than that of control group and 3% addition group(P<0.05). 2)There were no significant differences in contents of glucose,urea nitrogen,immunoglobulin A,immunoglobulin G and immunoglobulin M in serum among all groups(P>0.05). The serum cholinesterase activity of 3%addition group was significantly lower than that of other groups(P<0.05),and the serum malondialdehyde content was significantly lower than that of control group and 6% addition group(P<0.05);the contents of total protein,albumin and interleukin-6 in serum of 6% addition group were significantly higher than those of 3%and 9% addition groups(P<0.05),and the serum tumor necrosis factor-ɑ content was significantly higher than that of other groups(P<0.05);the serum creatinine content of 9% addition group was significantly lower than that of control group and 6% addition group(P<0.05),the serum interleukin-2 content was significantly lower than that of other groups(P<0.05),the serum total antioxidant capacity was significantly higher than that of the control group(P<0.05),and the activities of superoxide dismutase and glutathione peroxidase in serum were significantly higher than those of 6% addition group(P<0.05);the serum globulin content of 3% and9% addition groups was significantly lower than that of the control group(P<0.05). In conclusion,the addition of Scutellaria baicalensis stem and leaf in diet has no effect on the liver and kidney function of Simmental crossbred cattle,and can promote the body protein synthesis and metabolism,improve the body immune and antioxidant performance,finally increase the growth performance,and the suggested supplemental level of Scutellaria baicalensis stem and leaf is 6% to 9%.