T/WCACA 001-2021 Active Group standards

T/WCACA 001-2021: Quality Classification of Hay from Wu Di Alfalfa

T/WCACA 001-2021

Publish Date: 2021-03-21 Implement Date: 2021-03-21 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/WCACA 001-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Feed crops

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2021-03-21

Implement Date: 2021-03-21

Scope

Scope: This standard specifies the quality standards, testing methods, and quality grading rules for Wu Dai alfalfa hay. This standard applies to alfalfa hay grown in the Wu Dai region; Main technical content: 1. Technical requirements 1.1 Sensory requirements: - The surface of Wu Dai alfalfa hay should be green or light green. If the surface of the hay turns yellow or loses its greenness due to sun exposure, rainfall, or storage, its internal parts should be green or light green. - It should have no odor or a hay-like fragrance. - It should be free from mold. - The stems and leaves should be well preserved. 1.2 Physicochemical indicators: - The physicochemical indicators of Wu Dai alfalfa hay should meet the following requirements: - Extra-grade: ≥22.0% crude protein; - First-grade: ≥20.0, <22.0%; - Second-grade: ≥19.0, <20.0%; - Third-grade: <17.0%; - Neutral detergent fiber (NDF): - Extra-grade: <34.0%; - First-grade: ≥34.0, <36.0%; - Second-grade: ≥36.0, <40.0%; - Third-grade: >44.0%; - Acid detergent fiber (ADF): - Extra-grade: <27.0%; - First-grade: ≥27.0, <29.0%; - Second-grade: ≥29.0, <32.0%; - Third-grade: >35.0%; - Relative feed value (RFV): - Extra-grade: >190.0%; - First-grade: ≥170.0, <190.0%; - Second-grade: ≥150.0, <170.0%; - Third-grade: <130.0%; - Weed content (in %): - Extra-grade: <3.0%; - First-grade: <3.0%; - Second-grade: ≥3.0, <5.0%; - Third-grade: ≥5.0, <8.0%; - Crude ash content: ≤12.0%; - Moisture content: ≤14.0%; Note: - RFV = DMI (% BW) × DDM (% DM) / 1.29 - Where: - Dry matter intake (DMI % BW) = 120 / NDF (% DM) - Dry matter digestibility (DDM % DM) = 88.9 - 0.779 ADF (% DM) - All indicators are based on dry matter. 2. Testing methods 2.1 Sampling: Follow the provisions of N