健脾消导中药复方对6月龄西杂牛生长性能、瘤胃发酵参数和血清指标的影响

【目的】研究健脾消导中药复方对6月龄西门塔尔牛×本地黄牛杂交犊牛（西杂牛）生长性能、瘤胃发酵参数和血清生化指标的影响。【方法】选取体重为193 kg±20 kg的西杂牛28头，随机均分为对照组和试验组。对照组饲喂基础饲粮，试验组在基础饲粮中添加0.5%健脾消导中药复方，预试期7 d后连续饲喂90 d，于第91天晨饲前称重并采集瘤胃液和血液，测定瘤胃液短链脂肪酸和血清生理生化指标。【结果】与对照组相比，试验组平均日增重（ADG）显著增加（P＜0.05），料重比（F/G）降低；瘤胃液pH、乙酸、丙酸、丁酸、总短链脂肪酸含量及乙酸/丙酸比值均无显著差异（P＞0.05）；血清总胆固醇（CHO）含量升高；总胆红素（TBIL）、直接胆红素（DBIL）、谷丙转氨酶（ALT）和丙二醛（MDA）含量均显著降低（P＜0.05）；免疫球蛋白A（IgA）、免疫球蛋白G（IgG）、胃泌素（GAS）、三碘甲状腺原氨酸（T₃）、还原型谷胱甘肽（GSH）含量均显著升高（P＜0.05）；胃动素（MTL）和生长激素（GH）含量虽有升高但均差异不显著（P＞0.05）。【结论】在6月龄西杂牛的饲粮中添加健脾消导中药复方可以调节激素分泌、促进草料消化吸收、增强抗氧化能力、提高机体免疫力，进而提升西杂牛的生长性能。

Effects of Jianpi Xiaodao Chinese Herbal Compound on Growth Performance,Rumen Fermentation Parameters and Serum Indexes of 6-month-old Simmental Crossbred Cattles

【Objective】 The purpose of this experiment was to find out the effects of Jianpi Xiaodao Chinese herbal compound on the growth performance,rumen fermentation parameters and serum biochemical indexes of 6-month-old Simmental cattle×local yellow cattle (Simmental crossbred cattle).【Method】 28 Simmental crossbred cattles weighing 193 kg±20 kg were selected and randomly divided into control group and experimental group respectively.The control group was fed with basal diet,and the experimental group was fed with basal diet supplemented with 0.5% Jianpi Xiaodao Chinese herbal compound.After 7 d of pretrial period,cattles were fed for 90 d.Rumen fluid and blood were collected before morning feeding on 91 d,and rumen short-chain fatty acids and blood physiological and biochemical indexes were measured.【Result】 Compared with control group,in the experimental group,the average daily gain weight (ADG) was significantly increased (P＜0.05),the feed-to-gain ratio (F/G) was decreased,there were no significant differences in rumen fluid pH and contents of acetic acid,propionic acid,butyric acid,total short-chain fatty acid and ratio of acetic acid to propionic acid (P＞0.05),the content of serum total cholesterol (CHO) was significantly higher,the contents of total bilirubin (TBIL),direct bilirubin (DBIL), alanine aminotransferase (ALT) and malondialdehyde (MDA) were significantly decreased (P＜0.05),the contents of immunoglobulin A (IgA),immunoglobulin G (IgG),gastrin (GAS),triiodothyronine (T₃) and reduced glutathione (GSH) were significantly increased (P＜0.05). The contents of motilin (MTL) and growth hormone (GH) were increased but there was no significant difference (P＞0.05).【Conclusion】 The supplementation of Jianpi Xiaodao Chinese herbal compound in the diet of 6-month-old Simmental crossbred cattle could regulate hormone secretion,promote forage digestion and absorption,enhance antioxidant capacity,improve body immunity,and then improve the growth performance.