T/NAASS 020-2022 Active Group standards

T/NAASS 020-2022 Technical Regulations for the Silage of Feed Oats in Large-Scale Dairy Farms in Ningxia

T/NAASS 020-2022

Publish Date: 2022-11-12 Implement Date: 2022-12-16 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/NAASS 020-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: \nFeeds

Publish Date: 2022-11-12

Implement Date: 2022-12-16

Scope

Scope: This document specifies the terms and definitions, silage form, production process, raw material preparation, post-storage management, quality requirements, and retrieval requirements for oat silage used in large-scale dairy farms in Ningxia. This standard applies to oat silage used in large-scale dairy farms in Ningxia. Forage processing enterprises and cooperatives may refer to and use it as a reference. Main technical content: 3. Terms and definitions: The following terms and definitions apply to this document. 3.1 Oat silage: Oat silage refers to oat that is mechanically harvested at the appropriate time and stored in a silage facility. Under anaerobic conditions, it undergoes fermentation by beneficial microorganisms such as lactic acid bacteria, which reduces acidity and inhibits the activity of harmful microorganisms, thereby preserving nutrients and allowing the coarse feed to be stored for a certain period of time. 3.2 Heading stage: The process of the oat spike gradually emerging from the sheath of the flag leaf is called heading. Generally, when one-third to one-half of the spike has emerged, it is considered to have reached the heading stage. In the field, when more than 50% of the plants have reached the heading stage, it is referred to as the heading stage. 3.3 Penn State Particle Separator: A sieve invented by researchers at Pennsylvania State University, used for grading forage materials, also known as a forage analysis sieve. 4. Silage forms 4.1 Pit silage: A method of silage storage using silage pits. 4.2 Wrapped silage: A method of silage storage that involves mechanically harvesting oat at the appropriate time, densely bundling it with a baler, and wrapping it with professional stretch film. 5. Raw material preparation 5.1 Pre-harvest preparation: Select dedicated harvesting machinery and harvest during clear, rain-free days. 5.2 Harvest period: From heading to flowering stage. 5.3 Stubble height: The stubble height should be ≥10 cm. I