丙酸铬 — additive cross-jurisdiction identity

Derived crosswalk of how one feed additive is named and authorised across 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: 丙酸铬 (Chromium propionate)
Verdict: closest_with_differences

Per-jurisdiction entry

🇨🇳 CN — 公告2045 丙酸铬: 丙酸铬 is listed in 表一饲料添加剂品种目录 (category 矿物元素及其络（螯）合物); scope 猪、奶牛、肉仔鸡、犬、猫. _(src: CN 公告2045)_
🇪🇺 EU — Feed Additives Register: No current EU authorisation entry for this substance was found in the EU feed additives register (EU Food & Feed Information Portal; parsed dataset pdf-parsed/eu_feed_additives_2023_1813.json). Chromium propionate has no entry in the EU feed additives register; chromium is authorised in the EU only as the DL-methionine chelate (E-number 4d30). Do not fabricate an EU entry. _(src: EU Food & Feed Information Portal feed-additives register; parsed dataset pdf-parsed/eu_feed_additives_2023_1813.json — no matching authorisation; honest gap)_
🇺🇸 FDA (US) — EAFUS: No corresponding FDA EAFUS entry found for Chromium propionate (search of FDA EAFUS for 'CHROMIUM PROPIONATE' returned no 21 CFR listing for this substance); no US entry quoted — not fabricated. _(src: FDA EAFUS — gap)_
🇺🇸 AAFCO (US) — Ch.6 57.166 Chromium Propionate: is manufactured by the reaction of a chromium salt with propionic acid, at an appropriate stoichiometric ratio, to produce triaqua-(mu3-oxo) hexakis (mu2-propionato-O,O′) trichromium propionate with the empirical formula, [Cr3(O)(CH3CH2CO2)6(H2O)3]CH3CH2CO2. _(src: AAFCO OP 2024 Ch.6, code 57.166)_

🇨🇦 CA — Feeds Regs 2024 (CFIT): Chromium propionate — is the product resulting from the reaction of a chromium metal salt with an excess of propionic acid, at an appropriate stoichiometric ratio. Chromium propionate is for use as a source of chromium in registered chromium propionate supplements in amount not to exceed 0.2 mg of chromium /kg (200 ppb) of the complete feed for swine, turkeys and broiler chickens. It is also approved for use as a source of chromium in registered chromium propionate supplements in an amount not to exceed 0.5 mg of chromium /kg (500 ppb) of the total diet on a dry matter basis for cattle. It shall be labelled with the following statement: "Chromium propionate is for use as a source of chromium in registered chromium propionate supplements in an amount not to exceed 0.2 mg of chromium /kg (200 ppb) of the complete feed for swine, turkeys and broiler chickens. It is also approved for use as a source of chromium in registered chromium propionate supplements in an amount not to exceed 0.5 mg of chromium /kg (500 ppb) of the total diet on a dry matter basis for cattle." It shall be labelled with a guarantee for minimum percent chromium. _(src: Canadian Feed Ingredients Table (CFIT), inspection.canada.ca; SOR/2024-132; feed additive listed under Part 2 > Class 5. Nutritional ingredients > 5.3 Minerals)_

Crosswalk verdict

CN 公告2045 lists 丙酸铬 (scope 猪、奶牛、肉仔鸡、犬、猫). FDA EAFUS contains no corresponding entry for Chromium propionate (search for 'CHROMIUM PROPIONATE' returned no 21 CFR listing); recorded as an honest no_confirmed_equivalent — not fabricated. AAFCO OP 2024 Ch.6 defines Chromium Propionate (code 57.166). Verdict: CN↔US diverge in chemical form or regulatory framing; the pairing is the closest available US analogue, not a confirmed regulatory equivalence (EU noted as honest gap).

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): 猪、奶牛、肉仔鸡、犬、猫 _(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): honest gap — target-species / conditions of use not present in the currently retrieved EU source (conditions_of_use deferred). _(src: EU Feed Additives Register — gap)_
🇺🇸 FDA (EAFUS use class): honest gap — use class not present in the currently retrieved source (no FDA EAFUS entry found). _(src: FDA EAFUS — 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) — searched pdf-parsed/eu_feed_additives_2023_1813.json; no current authorisation for this substance (honest gap, not fabricated).
FDA: FDA EAFUS "Substances Added to Food" (pdf-raw/fda_substances_added_to_food_20260718.csv, first-hand)
AAFCO: OP 2024 Ch.6 (pdf-parsed/us-2026/aafco_ch6_2024_parsed.json, first-hand)

丙酸铬 — additive cross-jurisdiction identity