| 摘要: |
| 为探讨益生菌与黄芪联合使用在肉仔鸡生产中的协同作用效果。把鸡源乳杆菌微胶囊、枯草芽孢杆菌菌粉、地衣芽孢杆菌粉和黄芪粉按照质量比3∶1∶1∶3的比例混合复配成益生菌-黄芪复合生物制剂;在3日龄AA肉仔鸡基础日粮中分别添加2 g/kg复合益生菌制剂、4 g/kg黄芪粉和4、5和6 g/kg益生菌-黄芪复合生物制剂,对肉仔鸡生长性能、免疫作用和肠道菌群影响的效果进行观察。益生菌-黄芪复合生物制剂组较复合益生菌组、黄芪组可以: 1)显著提高肉仔鸡生产性能,日增重分别提高了14.01%~24.90%和13.40%~24.24%;料肉比分别下降了14.56%~7.28%和14.15%~6.83%; 2)显著提高机体免疫力,法氏囊指标分别提高23.53%~28.10%和29.45%~34.25%;脾脏指标分别提高31.65%~34.53%和46.4%~49.6%; 3)促进鸡新城疫抗体产生,改善肉仔鸡肠道菌群,效果显著(P＜0.05)。在益生菌-黄芪复合生物制剂组中,以添加量为5 g/kg时,协同效果最佳。益生菌与黄芪对肉仔鸡的生产性能、免疫力及改善其肠道菌群方面均具有较好的协同作用。 |
| 关键词: 肉仔鸡 黄芪 复合生物制剂 益生菌 |
| DOI：10.11841/j.issn.1007-4333.2011.01.009 |
| 投稿时间：2010-04-13 |
| 基金项目:河南省重大科技攻关计划项目(0623012200) |
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| Preparation of probiotics-astragalus complex biological reagentand its effect on broilers |
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WANG Yong-fen1, QIAO Hong-xing1, XI Lei1, GENG Ai-lian2, LI Hua-wei1, BIAN Chuan-zhou1
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| (1.Department of Bio-engineering,Zhengzhou College of Animal Husbandry Engeering,Zhengzhou 450011,China;2.Institute of Animal Husbandry and Veterinary Medicine,Beijing Academy of Agriculture andForestry Sciences,Beijing 100097,China) |
| Abstract: |
| This research was engaged in study on synergistic effect of Probiotics and Astragalus on production of broilers.In this experiment,broilers lactobacillus microcapsule,bacillus subtilis powder,bacillus licheniformis powder and Astragalus were mixed by the mass ratio of 3∶1∶1∶3 to prepare the Probiotics-Astragalus complex biological reagent.2 g/kg Probiotics reagent,4 g/kg Astragalus and 4、5 and 6 g/kg Probiotics-Astragalus complex biological reagent were added respectively in the based diet of 3 days old of AA broilers.The result showed that Probiotics-Astragalus had better effect than Probiotics and Astragalus groups:1) Broiler product performances in Probiotics-Astragalus group were significantly increased compared with Probiotics and Astragalus groups,such as daily weight gain increased 14.01%-24.90% and 13.40%-24.24%,and the ratio of feed to meat decreased 14.56%-7.28% and 14.15%-6.83% respectively.2) Immunity ability in Probiotics-Astragalus group increased significantly compared with Probiotics and Astragalus groups,for example,bursal index increased 23.53%-28.10% and 29.45%-34.25%,and spleen index increased 31.65%-34.53% and 46.4%-49.6% respectively.3) Increased the production of antibody for broilers newcastle disease and improving intestinal flora (P＜0.05).Synergistic effect achieved the best when adding 5 g/kg supplement in Probiotics-Astragalus group.Probiotics and astragalus had better synergistic effect in improving the performance,immunity ability and intestinal flora of the broilers. |
| Key words: broiler astragalus composite biological preparations probiotics |
