Circularity of feed ingredient
Measurement answer
What this metric measures
Percentage of assessed feed ingredient volume that is derived from waste or by-products.
Specification
Metric specification
- Result format
- Single value
- Unit
- % of feed ingredient volume — source-defined reporting unit
- Reporting basis
- Reporting period used for the feed-ingredient volume assessment; no further period convention is specified in the extracted evidence.
- Aggregation
- Percentage of total feed ingredient volume.
- Pillar
- Environmental
- Topic
- Feed ingredient circularity
- Controlled domain
- Materials, circularity and waste
- Entity type
- Metric
Reporting boundary
Feed ingredient volume within the reporting organization's assessed feed sourcing scope; the extracted evidence does not further define organizational or value-chain boundary.
Verified source occurrences
Framework coverage
This is one canonical metric. The bindings below show every verified framework occurrence without creating duplicate metric pages. Edition, disclosure, role, and relationship remain source-specific.
- Adopting DisclosureSource evidence
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Requirement
- Not Specified
- Relationship
- Defines Disclosure
- Mapping outcome
- Direct Evidence
- Source locator
- Page 75, Section 3.3, Table 20, A.A23.0
- Adopting DisclosureA.A23.0
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Version 1.0, June 2024
- Requirement
- Recommended
- Relationship
- Maps Source Identity
- Mapping outcome
- Published
- Source locator
- Page 75, Section 3.3, Table 20, A.A23.0
Value structure
Dimensions and units
- Unit
- % of feed ingredient volume — source-defined reporting unit
- Reporting basis
- Reporting period used for the feed-ingredient volume assessment; no further period convention is specified in the extracted evidence.
Unit meaning: Values use % of feed ingredient volume under the disclosed TNFD sector-guidance method, reporting period and boundary.
Published dimensions
- Feed ingredient source classification: derived from waste or by-products versus total feed ingredient volume
Calculation method
Formula information
- Status
- Specified
- Formula type
- Percentage
Formula
(Volume of feed ingredients derived from waste or by-products / Total feed ingredient volume) × 100Apply the source-defined TNFD sector-guidance method within the stated reporting boundary. The source describes a standalone proportional outcome with an explicit denominator and percentage unit. It is not equivalent to general product circular-design or overall circular-material-use metrics because it is specifically bounded to feed ingredient sourcing.
Variables
| Symbol | Variable | Definition | Unit |
|---|---|---|---|
V_wb | Volume of feed ingredients derived from waste or by-products | Volume of feed ingredients classified as derived from waste or by-products under the reporting organization's stated criteria. | volume of feed ingredients |
V_total | Total feed ingredient volume | Total volume of feed ingredients included in the reported assessment boundary. | volume of feed ingredients |
Verified sources
Evidence and status sources
Sustopedia checked each record-specific claim directly against primary publisher material. Labels distinguish current measurement authority from future compatibility and corroborative, legal, edition, or method status context. Corroborative evidence can support a stated limitation but cannot establish the core measurement by itself.
Measurement evidence
- Measurement evidenceChecked 30 August 2026
TNFD additional sector guidance collection
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Locator
- Page 75, Section 3.3, Table 20, A.A23.0
Supports: The official TNFD sector guidance supports the identity, boundary and method basis of “Circularity of feed ingredient”.
Open official source
Use with context
Interpretation boundaries
Method disclosures required
Source-edition basis: TNFD sector guidance, Final English sector guidance collection through August 2026 (17 documents).
- Definition and eligibility criteria used to classify a feed ingredient as derived from waste or by-products.
- Method used to measure or estimate feed ingredient volumes.
- Composition of the total feed-ingredient-volume denominator and treatment of mixed-origin ingredients.
- Reporting boundary and period applied.
Record-specific limitations
- The extracted evidence does not define qualifying waste or by-products.
- The extracted evidence does not specify organizational consolidation, value-chain coverage, or treatment of mixed-origin ingredients.
- No ingredient-type disaggregation is specified in the extracted evidence.
Interpret this metric with the stated reporting boundary, period convention, value shape, and unit. Results prepared with different boundaries or conventions may not be directly comparable.
Measurement evidence supports the core record-specific claims described above. Corroborative evidence can support limitations, while compatibility and status sources provide their separately labelled context. None of these cards by itself determines an organisation's legal applicability, filing readiness, assurance status, or compliance conclusion.