Nezam El-Tayebat 事实核查对“نظام الطيبات”饮食体系的科学评估
选择国家
选择语言: 简体中文

基本正确 有充分科学证据支持 证据确定性: 中 初步 C-RES-05

在家禽生产中，过去（以及现在）使用抗生素来让鸡长得更快。

简而言之: 这一说法是正确的：过去曾使用低剂量抗生素让鸡长得更快，欧盟自 2006 年起禁止将其用于这一目的，而埃及的许多养殖场仍在非治疗性地使用；其促生长作用很小（饲料转化率约提高 3%），而现代鸡的快速生长主要来自育种。
结论: 从历史上看是正确的；欧盟自 2006 年起已禁止。
  1. 原始表述
  2. 科学评估
  3. 科学证据详解
  4. 通俗解释
  5. 与该说法相关的研究
  6. 地区背景
  7. 在我的国家适用什么？
  8. 参考文献

原始表述

كبر لك الفراخ بالمضادات الحيويه فهو عارف يكبر فرخه من 10 جرام كتكوت خلاها فرخه 3 كيلو في 40 يوم

按来源为原话. 译文由本项目提供；以阿拉伯语原文为准。

译文

在家禽生产中，过去（以及现在）使用抗生素来让鸡长得更快。

出处

来源状态
视频转录文本（本人原话）
归属
Elawady (machine transcript)
视频
Dr Diaa Al Awady د ضياء العوضي is live!لايف بصراحة (打开来源)
发布日期
2026年1月27日
时间戳
0:59:35 (在原视频 YouTube 自动字幕轨中的位置；可确认该内容出现的位置，但不能确认说话人是谁)
归属的不确定性
Archive transcript (YouTube CC or AI-generated); wording may contain transcription errors; no timestamps; 'published' is the date listed by the archive. Passage read in context.
所声称的机制

Microbiome-mediated growth promotion.

所声称的健康影响

Faster growth of chickens.

Elawady 设定的地域限制

none found

来源版本存在差异

المضاد الحيوي والكيماوي بيزود العيان وزن

来源状态
视频转录文本（本人原话）
归属
Elawady (machine transcript)
视频
Dr Diaa Al Awady د ضياء العوضي is live! الموت المفاجيء (打开来源)
发布日期
2025年7月14日
时间戳
0:27:05 (在原视频 YouTube 自动字幕轨中的位置；可确认该内容出现的位置，但不能确认说话人是谁)
归属的不确定性
Archive transcript (YouTube CC or AI-generated); wording may contain transcription errors; no timestamps; 'published' is the date listed by the archive. Passage read in context.

科学评估

基本正确 – 核心内容正确，但有局限或细微不准确之处。

证据确定性: 中 – 进一步研究仍可能影响该评估。

1. 说法是什么？

Antibiotics make chickens grow.

2. 哪些内容可证实是正确的？

Antibiotics were authorised as feed additives in the EU until 31 December 2005 and then banned (I-RES-04). A meta-analysis of 183 experiments found that antibiotic growth promoters increase weight gain and improve feed conversion, mainly in the first three weeks (I-RES-111). Cox et al. reproduce the growth-promoting effect in mice (A-ABX-03). In Egypt, 65% of surveyed farms reported non-therapeutic use (I-CHK-117). WHO recommends complete restriction of growth promotion (I-CHK-118).

3. 哪些内容是错误或夸大的？

The implication that today's broiler growth is due to antibiotics is not supported. The average effect is small (about 3% better feed conversion, with wide variation; I-RES-112), whereas genetic selection increased broiler growth by over 400% between 1957 and 2005 on the same feed (I-INTA-11). In the Egyptian survey, non-therapeutic use did not improve feed conversion (I-CHK-117).

4. 哪些内容仍不明确？

Current growth-promoter use in Egypt.

5. 哪些研究支持该说法？

I-RES-04, I-RES-111, A-ABX-03, I-CHK-117, I-CHK-118.

6. 哪些研究与该说法相矛盾？

I-INTA-11 (growth from genetics), I-RES-112 (small effect).

7. 对德国和欧洲而言情况如何？

Banned since 2006.

8. 关于埃及的已知情况是什么？

Non-therapeutic antibiotic use (prevention or growth promotion) reported by 65% of 111 surveyed farms; half used colistin (I-CHK-117).

9. 合理的实际结论是什么？

从历史上看是正确的；但并不是对欧盟当前做法的描述。

评估详情

证据确定性的依据

Growth promotion with sub-therapeutic antibiotics is historically well established (it is why the EU banned the practice in 2006) and is the basis of the mouse model in A-ABX-03. However, the fast growth of modern broilers (about 40 days to slaughter weight) is mainly due to genetics and feed, not antibiotics (general animal science; no source fetched), and EU broilers have been raised without antibiotic growth promoters since 2006.

来源质量

Machine transcript.

地区可推广性

EU: banned since 2006; elsewhere practice varies.

说法的地域范围
未说明
最近审核
2026年10月26日 初步

科学证据详解

有充分科学证据支持 – 该说法与一致的高质量证据相符。

研究问题: Were (and are) antibiotics used in poultry production to make chickens grow faster, and how large is the effect?

研究问题详解 (PECO)
人群
Broiler chickens
干预或暴露
Antibiotic growth promoters (AGP) or non-therapeutic antibiotic use
对照
No AGP
地域范围
production-dependent (banned in EU since 2006; used elsewhere)
结局指标
  • weight gain
  • feed conversion
  • current use

研究结果按作者报告呈现。我们的评估见下文。

哪些证据支持该说法？

哪些证据不支持该说法？

总体证据说明了什么？

基于上述研究的编辑评估——其本身并非研究结果。

哪种观点有更好的证据支持？

Correct: antibiotics were and in some countries still are used to promote growth; their effect is small compared with genetic selection.

为什么有些研究权重更大

Meta-analyses agree on a real but small effect; regulation and surveys document use.

因果关系是否已确立？ 是，已确立 Controlled feeding trials pooled in meta-analyses.

仍存在的不确定性

Current extent in Egypt (survey data only).

合理的结论

True as stated; the implication that modern fast growth is due to antibiotics is wrong.

为什么研究结果看起来互相矛盾？

I-RES-111 (clear effect) vs I-RES-112 (marginal effect) and I-CHK-117 (no FCR effect in Egyptian farms): effect concentrated in early life and under poorer hygiene; modern conditions reduce it.

这是否取决于国家？
一般生物学效应
Growth effect biologically established.
饮食习惯
Not relevant.
食品原产地
Imported poultry from countries allowing AGP; EU import rules since 3 September 2026 also cover growth-promotion bans (the project's research files).
污染物
Residues and resistance (C-CHK-05).
本国生产条件
Egypt: non-therapeutic use reported on 65% of surveyed farms.
法律规则
EU ban since 2006 (Reg. 1831/2003); WHO recommends complete restriction.
实际监测数据
EU sales monitoring (ESUAvet); Egypt: none.

地区差异有可靠数据支持。

统计复核
  • CI symmetry and practical size – 2.8% (1.3-4.3) symmetric; illustrative saving about 112 g feed per 2.5 kg bird (assumed values). 已重新计算
总体证据的确定性（GRADE，简化版）
主要结局
Growth promotion by antibiotics in broilers
起始等级
高（随机试验）
降级理由
  • inconsistency (effect size varies widely)
结果
中

由单名审查者参照 GRADE 方法进行的简化评估；并非正式的 GRADE 专家组评估。GRADE 评价的是针对某一结局的整体证据，而非单项研究。

已核查的临床指南和官方声明
  • WHO: WHO guidelines on use of medically important antimicrobials in food-producing animals (summary, Aidara-Kane et al. 2018, PMID 29375825) (2017) · 原始文献
    Complete restriction of antimicrobial use for growth promotion and for prevention in healthy animals; reduce overall use of medically important antimicrobials.
  • EU: Regulation (EC) No 1831/2003, Art. 11 (existing study I-RES-04 / I-CHK-02) (2003) · 原始文献 无法获取；内容未采用
检索策略

本次审查的文献检索记录（检索式采用原数据库语法）。

数据库日期检索式检索目标命中数纳入数
Europe PMC2026年10月26日(TITLE:"growth promoter" OR TITLE:"growth promoters" OR TITLE:"growth-promoting") AND (TITLE:antibiotic OR TITLE:antimicrobial) AND (TITLE:broiler OR TITLE:poultry OR TITLE:chicken) AND (TITLE:"meta-analysis" OR TITLE:review OR TITLE:withdrawal OR TITLE:ban)双向7
Europe PMC2026年10月26日TITLE:"WHO guidelines on use of medically important antimicrobials in food-producing animals"指南3

待解决的问题

National data on antimicrobial use in Egyptian poultry.

核查深度如何？

7 项相关研究：1 项核查了全文（其中 1 项进行了结构化偏倚风险评估），6 项基于摘要核查，0 项仅核查了文献信息。 尚未进行由两名独立审查者完成的正式评估，也尚未进行独立的人类专家审核。

最近一次科学审核: 2026年10月26日

评定结论的变更历史
  1. 2026年10月25日 · 第 1 阶段 · 初始评估: 基本正确 (中)
  2. 2026年10月26日 · 第 4 阶段（系统证据审查） · 在扩展证据后重新审查；评定结论不变: 基本正确 (中)
    Meta-analyses confirm a real but small growth effect; Egyptian survey shows ongoing non-therapeutic use. Verdict unchanged; it remains MOSTLY_TRUE because the statement is often used to imply that modern growth is antibiotic-driven.
    新来源: I-RES-111 I-RES-112 I-CHK-117 I-CHK-118

通俗解释

Elawady 医生说，过去用抗生素让鸡长得更快。从历史上看这是正确的：过去曾为此使用低剂量抗生素，这也是欧盟从 2006 年起禁止这种做法的原因。如今，鸡的快速生长主要来自育种和饲料。

与该说法相关的研究

支持该说法的研究 (5)

  • EU ban on antibiotic growth promoters

    European Parliament and Council. Official Journal of the EU 2003
    指南 / 立场声明独立交叉核查已核查摘要

    Since 1 January 2006, antibiotics may not be used as growth promoters in EU animal feed.

    该研究是否支持这一具体说法？ 不明确 · 方法学质量: 高 · 证据确定性：见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么？

    Ban growth promoters.

    研究是如何开展的？

    Regulation.

    实际发现了什么？

    Ban from 2006.

    研究结果对日常生活意味着什么？

    No legal antibiotic fattening in EU.

    它对 Elawady 的具体说法说明了什么？

    Context.

    研究结果是否适用于德国和欧洲？

    High.

    科学细节 →

  • Antibiotics, gut bacteria and fat in mice

    Cox LM et al.. Cell 2014 · PMID 25126780 · DOI 10.1016/j.cell.2014.05.052
    动物研究被 Tayebat 档案网站引用全文，含结构化偏倚风险评估★ 关键研究

    Low-dose penicillin early in life made mice fatter via their gut bacteria.

    该研究是否支持这一具体说法？ 部分支持 · 方法学质量: 中 · 证据确定性：见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么？

    Test causality in mice.

    研究是如何开展的？

    Experiments, microbiota transfer.

    研究了多少人、动物或样本？

    Mouse groups of about 3-10 animals per experiment.

    实际发现了什么？

    Continuous low-dose penicillin early in life increased weight and fat in mice (effects differed by sex); germ-free mice given the altered gut bacteria gained fat faster.

    研究结果对日常生活意味着什么？

    Shows a plausible mechanism.

    该研究有哪些局限？

    Mouse model; tiny groups and many tests; continuous low dosing like farm growth promoters, unlike human treatment courses; effects inconsistent between sexes.

    它对 Elawady 的具体说法说明了什么？

    Mechanism only.

    从该研究中明确不能得出什么结论？

    Human effect.

    科学细节 →

  • Antibiotics in feed do make broilers grow a little faster

    Maria Cardinal K et al.. Poult Sci 2019 · PMID 31544941 · DOI 10.3382/ps/pez536
    Meta分析独立交叉核查已核查摘要

    Across 183 experiments, antibiotic growth promoters increased weight gain and feed efficiency, mainly early in life.

    AGP increase weight gain and improve feed conversion, mainly in the first 3 weeks.

    该研究是否支持这一具体说法？ 是 · 方法学质量: 中 · 证据确定性：见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么？

    What are the performance and economic effects of withdrawing AGP from broiler diets?

    研究是如何开展的？

    Meta-analysis of 183 experiments plus economic model (Brazil)

    研究了多少人、动物或样本？

    174 articles, 183 experiments, 121,643 broilers

    实际发现了什么？

    AGP+ diets: higher feed intake, weight gain and lower feed conversion in the initial phase (1-21 d); no differences in the final phase (22-42 d); over the total period higher weight gain and better feed conversion. Economic impact $0.03 per bird.

    观察到的效应有多大？

    AGP+ diets: higher feed intake, weight gain and lower feed conversion in the initial phase (1-21 d); no differences in the final phase (22-42 d); over the total period higher weight gain and better feed conversion. Economic impact $0.03 per bird.

    研究结果对日常生活意味着什么？

    The growth effect is real but small.

    该研究有哪些局限？

    Effect sizes not in abstract; Publication bias possible; Industry-economic framing

    它对 Elawady 的具体说法说明了什么？

    Supports the claim that antibiotics were used to make chickens grow faster.

    研究结果是否适用于德国和欧洲？

    Banned in the EU since 2006.

    从该研究中明确不能得出什么结论？

    Does not show that modern fast growth is due to antibiotics.

    科学细节 →

  • Egyptian farms report routine antibiotic use, often without medical need

    ElSayed N et al.. J Egypt Public Health Assoc 2025 · PMID 39828782 · DOI 10.1186/s42506-024-00180-w
    横断面研究独立交叉核查已核查摘要

    All 111 farms used antibiotics; 65% also used them for prevention or growth.

    Antibiotics are still used for growth promotion/prevention in Egypt, though without measurable FCR benefit in this survey.

    该研究是否支持这一具体说法？ 是 · 方法学质量: 低 · 证据确定性：见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么？

    What antimicrobials are used on Egyptian animal farms, for what purposes, and why?

    研究是如何开展的？

    Cross-sectional survey of farm personnel

    研究了多少人、动物或样本？

    111 of 150 farms (74% response)

    实际发现了什么？

    All surveyed personnel reported antimicrobial use; 65% used them for non-therapeutic purposes (prevention or growth promotion). Non-therapeutic use had no impact on FCR in any farm type. Most used: penicillins 81%, macrolides 78%, tetracyclines 72%. Half used colistin; 55% of these non-therapeutically.

    观察到的效应有多大？

    All surveyed personnel reported antimicrobial use; 65% used them for non-therapeutic purposes (prevention or growth promotion). Non-therapeutic use had no impact on FCR in any farm type. Most used: penicillins 81%, macrolides 78%, tetracyclines 72%. Half used colistin; 55% of these non-therapeutically.

    研究结果对日常生活意味着什么？

    In Egypt, routine antibiotic use in animals is common.

    该研究有哪些局限？

    Self-report; Farms selected from a private platform list; Small sample

    它对 Elawady 的具体说法说明了什么？

    Supports 'routine antibiotics' for Egypt.

    研究结果是否适用于德国和欧洲？

    Not applicable to the EU (growth promoters banned since 2006).

    从该研究中明确不能得出什么结论？

    Not representative of all Egyptian farms.

    科学细节 →

  • WHO: stop using antibiotics to make farm animals grow

    Aidara-Kane A et al.. Antimicrob Resist Infect Control 2018 · PMID 29375825 · DOI 10.1186/s13756-017-0294-9
    指南 / 立场声明独立交叉核查已核查摘要

    WHO recommends ending antibiotic use for growth promotion and for prevention in healthy animals.

    Confirms that antimicrobials were used for growth promotion and recommends complete restriction.

    该研究是否支持这一具体说法？ 是 · 方法学质量: 高 · 证据确定性：见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么？

    How should medically important antimicrobials be used in food-producing animals?

    研究是如何开展的？

    Summary of WHO guideline developed with GRADE and commissioned systematic reviews

    研究了多少人、动物或样本？

    not applicable

    实际发现了什么？

    Recommends reduction in overall use of medically important antimicrobials, complete restriction of use for growth promotion and for disease prevention in healthy animals, and no use of critically important antimicrobials unless susceptibility testing shows they are the only option.

    观察到的效应有多大？

    Recommends reduction in overall use of medically important antimicrobials, complete restriction of use for growth promotion and for disease prevention in healthy animals, and no use of critically important antimicrobials unless susceptibility testing shows they are the only option.

    研究结果对日常生活意味着什么？

    The international health authority agrees that farm antibiotic use is a resistance problem.

    该研究有哪些局限？

    Recommendations rest partly on low-certainty evidence

    它对 Elawady 的具体说法说明了什么？

    Supports the resistance concern; does not quantify human harm.

    研究结果是否适用于德国和欧洲？

    EU rules (Reg. 2019/6) largely implement these principles.

    从该研究中明确不能得出什么结论？

    Not a measure of current use in any country.

    科学细节 →

与该说法相矛盾或限制该说法的研究 (1)

  • Why do modern chickens grow so fast?

    Zuidhof MJ et al.. Poultry science 2014 · PMID 25260522 · DOI 10.3382/ps.2014-04291
    其他独立交叉核查已核查摘要

    Modern broilers grew over four times faster than 1957 birds on the same feed, showing the role of breeding.

    Growth gains attributable to genetic selection.

    该研究是否支持这一具体说法？ 部分支持 · 方法学质量: 中 · 证据确定性：见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么？

    Broiler genetics and growth

    研究是如何开展的？

    Strain comparison on identical diet

    研究了多少人、动物或样本？

    180 chicks per strain

    实际发现了什么？

    Growth +400% from 1957 to 2005

    观察到的效应有多大？

    FCR -50%

    研究结果对日常生活意味着什么？

    Fast growth is mostly bred into the birds

    该研究有哪些局限？

    One experiment

    它对 Elawady 的具体说法说明了什么？

    Qualifies 'antibiotics make chickens grow' (C-RES-05)

    研究结果是否适用于德国和欧洲？

    High

    从该研究中明确不能得出什么结论？

    Whether antibiotics are still used in Egypt

    科学细节 →

结果不一或不明确的研究 (1)

  • Antibiotic growth promoters improve feed efficiency by only about 3%

    El-Fateh M et al.. Poult Sci 2024 · PMID 39504822 · DOI 10.1016/j.psj.2024.104472
    Meta分析独立交叉核查已核查摘要

    On average, antibiotics improved feed conversion by 2.8%, with large variation.

    Growth promotion is real but marginal (2.8% better FCR); modern growth is mainly due to genetics (I-INTA-11).

    该研究是否支持这一具体说法？ 部分支持 · 方法学质量: 中 · 证据确定性：见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么？

    What is the overall effect of AGP on FCR in broilers?

    研究是如何开展的？

    Meta-analysis with meta-regression (PRISMA)

    研究了多少人、动物或样本？

    42 articles, 74 experiments, 19,562 chickens

    实际发现了什么？

    Overall FCR improvement 2.8% (95% CI 1.3-4.3%; prediction interval -10 to 16%). Breed, dose and location explained 53% of variation.

    观察到的效应有多大？

    Overall FCR improvement 2.8% (95% CI 1.3-4.3%; prediction interval -10 to 16%). Breed, dose and location explained 53% of variation.

    研究结果对日常生活意味着什么？

    Antibiotics are a minor factor in how fast chickens grow today.

    该研究有哪些局限？

    Heterogeneous studies; FCR only

    它对 Elawady 的具体说法说明了什么？

    Supports use for growth; limits its importance.

    研究结果是否适用于德国和欧洲？

    EU: banned.

    从该研究中明确不能得出什么结论？

    Does not measure residues or human effects.

    科学细节 →

地区背景

德国 / 欧盟

Banned since 2006.

埃及

Non-therapeutic antibiotic use (prevention or growth promotion) reported by 65% of 111 surveyed farms; half used colistin (I-CHK-117).

在我的国家适用什么？

一般科学评估

基本正确 从历史上看是正确的；欧盟自 2006 年起已禁止。

以下食品安全领域与该说法相关：

  • 农药与农药残留
  • 兽药与抗生素
  • 激素类促生长剂
  • 污染物（重金属、PFAS、PCB、二噁英、硝酸盐）
  • 病原体（沙门氏菌、弯曲杆菌等）
  • 畜禽养殖与饲料
  • 监管、进口、召回、标签

蛋类 · 禽类 · 乳制品 · 鱼类与海产品 · 红肉 · 水果与蔬菜

选择一个国家，查看针对该国已核查的信息。

局限：法律规则描述的是允许什么，而不是每一种食品实际含有什么。检测数据来自样本，只有结合其方法细节才有意义。

居住或购买所在国 与另一个国家比较

参考文献

  1. Regulation (EC) No 1831/2003 on additives for use in animal nutrition, Article 11. European Parliament and Council. Official Journal of the EU 2003
  2. Altering the intestinal microbiota during a critical developmental window has lasting metabolic consequences.. Cox LM et al.. Cell 2014 · PMID 25126780 · DOI 10.1016/j.cell.2014.05.052
  3. Withdrawal of antibiotic growth promoters from broiler diets: performance indexes and economic impact.. Maria Cardinal K et al.. Poult Sci 2019 · PMID 31544941 · DOI 10.3382/ps/pez536
  4. Antimicrobial use in animal farms in Egypt: rates, patterns, and determinants.. ElSayed N et al.. J Egypt Public Health Assoc 2025 · PMID 39828782 · DOI 10.1186/s42506-024-00180-w
  5. World Health Organization (WHO) guidelines on use of medically important antimicrobials in food-producing animals.. Aidara-Kane A et al.. Antimicrob Resist Infect Control 2018 · PMID 29375825 · DOI 10.1186/s13756-017-0294-9
  6. Growth, efficiency, and yield of commercial broilers from 1957, 1978, and 2005.. Zuidhof MJ et al.. Poultry science 2014 · PMID 25260522 · DOI 10.3382/ps.2014-04291
  7. Effect of antibiotic growth promoters (AGPs) on feed conversion ratio (FCR) of broiler chickens: A meta-analysis.. El-Fateh M et al.. Poult Sci 2024 · PMID 39504822 · DOI 10.1016/j.psj.2024.104472

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