DL-蛋氨酸 — additive cross-jurisdiction identity
Derived crosswalk of how one feed additive is named and authorised across three jurisdictions. No claim of regulatory equivalence is made — pairings are anchored on the substance identity, and the verdict states where the definitions actually diverge.
- Substance anchor: DL-蛋氨酸
- Verdict:
closest_with_differences
Per-jurisdiction entry
| 法域 | 名称 / 编号 | 状态 / 描述 | 来源 |
|---|---|---|---|
| 🇨🇳 CN | 公告2045 DL-蛋氨酸 | DL-蛋氨酸 is listed in 表一 饲料添加剂品种目录 (category 氨基酸、氨基酸盐及其类似物 for amino acids / 矿物元素及其络（螯）合物 for chelates / 维生素及类维生素 for vitamins), scope 养殖动物 (all livestock and poultry). | CN 公告2045 |
| 🇪🇺 EU | Feed Additives Register 3c301 | DL-methionine, technically pure — functional category 3 c. Authorised in the EU feed additives register (first-hand-derived parse of the EU Food & Feed Information Portal register). Cross-jurisdiction note: this EU authorisation is quoted from the register and is not asserted to be equivalent to the CN 公告 2045 / FDA EAFUS entries (definitions, chemical form, or conditions of use may differ). | EU Food & Feed Information Portal feed-additives register; parsed dataset pdf-parsed/eu_feed_additives_2023_1813.json, e_number 3c301 |
| 🇺🇸 AAFCO (US) | Ch.6 57.28 Metal Methionine Hydroxy Analogue Chelate | Metal Methionine Hydroxy Analogue Chelate is the product resulting from the reaction of a metal salt with 2-hydroxy-4-methylthiobutanoic acid (HMTBa), having a chelated molar ratio of one mole of metal to two moles of HMTBa to form coordinate covalent bonds. | AAFCO OP 2024 Ch.6, code 57.28 |
| 🇨🇦 CA | Feeds Regs 2024 (CFIT) | DL-Methionine — is the product that contains a minimum of 95% racemic 2-amino-4-methylthiobutyric acid, and having the CAS# 59-51-8. It shall be labelled with a guarantee for minimum percent L-methionine, and minimum percent DL-methionine. | Canadian Feed Ingredients Table (CFIT), inspection.canada.ca; SOR/2024-132; feed additive listed under Part 1 > Class 5. Nutritional ingredients > 5.1 Amino acids |
Crosswalk verdict
CN 公告2045 and EU No 469/2013 authorise DL-methionine (and its sodium salt / hydroxy analogue) for all animal species. AAFCO OP 2024 Ch.6 does not list isolated DL-methionine as a feed ingredient; the closest methionine-source entry is Metal Methionine Hydroxy Analogue Chelate (57.28), a metal-chelated hydroxy analogue — a different chemical form. Verdict: CN↔EU equivalent; AAFCO diverges in chemical form.
Species & use scope (适用范围)
Cross-jurisdiction species / use-scope dimension surfaced from each jurisdiction's retrieved source. CN 适用范围 is quoted verbatim from the 公告2045 饲料添加剂品种目录; EU target-species and FDA use-class reflect only what is already present in the topic's own cells (no new source fetches).
- 🇨🇳 CN (公告2045 适用范围): 养殖动物 _(src: 农业部公告第2045号 饲料添加剂品种目录, 适用范围)_
- 🇪🇺 EU (target species): All animal species. _(src: EU Food & Feed Information Portal feed-additives register (FFP policy-items JSON, e_number 3c301); target species = authorisation feedAnimal value(s))_
- EU (functional category):
cat_func_group_3_c— Nutritional additives (subcategoryc). _(src: EU Food & Feed Information Portal feed-additives register (FFP policy-items JSON, feedCategoryFunctionalGroup); category names per EU Reg 1831/2003 Annex I — pdf-raw/eu/eurlex_32003R1831_consolidated_2026-08-11.html)_ - 🇺🇸 FDA (EAFUS use class): honest gap — FDA cell absent in this topic. _(src: — gap)_
Sources
- CN: 农业部公告第2045号 《饲料添加剂品种目录》 (first-hand; fujian compile txt, intra-cell line wraps normalised for verbatim quotation)
- EU: EU Feed Additives Register (EU Food & Feed Information Portal; E-number 3c301 = DL-methionine, technically pure, category 3 c). First-hand-derived parse: pdf-parsed/eu_feed_additives_2023_1813.json. Target species (feedAnimal) cross-checked against FFP policy-items JSON (pdf-raw/eu/eu_ffp_feed_additives_policy_items_2026-08-11.json).
- AAFCO: OP 2024 Ch.6 code 57.28 (Metal Methionine Hydroxy Analogue Chelate)