摘 要
随着畜牧业中抗生素的广泛使用，细菌耐药性问题加剧，全球开始寻找替代品。植物提取物因其天然和环保特性，成为潜在的抗生素替代品。本研究评估了黄芩、金银花和姜黄三种植物提取物在家禽饲料中的应用效果。实验显示，这些提取物能减少肠道病原菌，改善肠道微生态，且不影响肉鸡生长。试验组肉鸡日增重提高5.2%，料肉比降低3.8%，并增强了抗氧化和免疫调节功能。研究首次探讨了植物提取物的协同作用，支持了新型绿色饲料添加剂的开发。合理使用植物提取物可减少药物残留，促进家禽养殖业可持续发展。
关键词：植物提取物；抗生素替代；家禽饲料；免疫调节
EVALUATION OF THE EFFECT OF PLANT EXTRACTS ON REPLACING ANTIBIOTICS IN POULTRY FEED
ABSTRACT
With the widespread use of antibiotics in livestock, the problem of bacterial resistance has intensified and the global search for alternatives. Plant extracts are potential alternatives to antibiotics due of their natural and environmentally friendly properties. This study evaluated the effectiveness of three plant extracts of baicalensis, honeysuckle and turmeric in poultry feed. Experiments showed that these extracts could reduce enteric pathogens, improve intestinal microecology, and did not affect the growth of broilers. In the experimental group, the daily weight gain increased by 5.2%, and the raw meat ratio decreased by 3.8%, and enhanced the antioxidant and immune regulation functions. We explored the synergistic synergy of plant extracts and supported the development of new green feed additives. Rational use of plant extracts can reduce drug residues and promote the sustainable development of the poultry industry.
KEY WORDS：Plant extracts; Antibiotic replacement; Poultry feed; Immunomodulation
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 研究背景与意义 1
1.2 国内外研究现状 1
第2章 相关理论概述 3
2.1 植物提取物的抗菌活性成分分析 3
2.2 植物提取物对家禽肠道微生物的影响 3
2.3 植物提取物对家禽免疫系统的调节作用 4
第3章 植物提取物替代抗生素的饲养效果评估 5
3.1 植物提取物对家禽生长性能的影响 5
3.2 植物提取物对家禽饲料转化率的影响 5
3.3 植物提取物对家禽健康状况的综合评估 6
第4章 植物提取物替代抗生素的经济与环境效益分析 7
4.1 植物提取物替代抗生素的成本效益分析 7
4.2 植物提取物替代抗生素的环境影响评估 7
4.3 政策与市场前景分析 8
第5章 结论 9
参考文献 10
致 谢 11
随着畜牧业中抗生素的广泛使用，细菌耐药性问题加剧，全球开始寻找替代品。植物提取物因其天然和环保特性，成为潜在的抗生素替代品。本研究评估了黄芩、金银花和姜黄三种植物提取物在家禽饲料中的应用效果。实验显示，这些提取物能减少肠道病原菌，改善肠道微生态，且不影响肉鸡生长。试验组肉鸡日增重提高5.2%，料肉比降低3.8%，并增强了抗氧化和免疫调节功能。研究首次探讨了植物提取物的协同作用，支持了新型绿色饲料添加剂的开发。合理使用植物提取物可减少药物残留，促进家禽养殖业可持续发展。
关键词：植物提取物；抗生素替代；家禽饲料；免疫调节
EVALUATION OF THE EFFECT OF PLANT EXTRACTS ON REPLACING ANTIBIOTICS IN POULTRY FEED
ABSTRACT
With the widespread use of antibiotics in livestock, the problem of bacterial resistance has intensified and the global search for alternatives. Plant extracts are potential alternatives to antibiotics due of their natural and environmentally friendly properties. This study evaluated the effectiveness of three plant extracts of baicalensis, honeysuckle and turmeric in poultry feed. Experiments showed that these extracts could reduce enteric pathogens, improve intestinal microecology, and did not affect the growth of broilers. In the experimental group, the daily weight gain increased by 5.2%, and the raw meat ratio decreased by 3.8%, and enhanced the antioxidant and immune regulation functions. We explored the synergistic synergy of plant extracts and supported the development of new green feed additives. Rational use of plant extracts can reduce drug residues and promote the sustainable development of the poultry industry.
KEY WORDS：Plant extracts; Antibiotic replacement; Poultry feed; Immunomodulation
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 研究背景与意义 1
1.2 国内外研究现状 1
第2章 相关理论概述 3
2.1 植物提取物的抗菌活性成分分析 3
2.2 植物提取物对家禽肠道微生物的影响 3
2.3 植物提取物对家禽免疫系统的调节作用 4
第3章 植物提取物替代抗生素的饲养效果评估 5
3.1 植物提取物对家禽生长性能的影响 5
3.2 植物提取物对家禽饲料转化率的影响 5
3.3 植物提取物对家禽健康状况的综合评估 6
第4章 植物提取物替代抗生素的经济与环境效益分析 7
4.1 植物提取物替代抗生素的成本效益分析 7
4.2 植物提取物替代抗生素的环境影响评估 7
4.3 政策与市场前景分析 8
第5章 结论 9
参考文献 10
致 谢 11
