T/NAASS 006-2020 Active Group standards

T/NAASS 006-2020 Corn Stalk Feed Processing and Modification Technical Specification

Publish Date: 2020-10-28 Implement Date: 2020-11-01 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 006-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Integrated agriculture and forestry

ICS Name: \nFeeds

Publish Date: 2020-10-28

Implement Date: 2020-11-01

Scope

Scope: This document specifies the terms and definitions, target requirements, raw material preparation, production methods, quality identification, and feeding methods for corn cobs. This document is applicable to the processing and preparation of corn cob feed in the Ningxia region; Main technical content: 3. Terms and definitions The following terms and definitions apply to this document. 3.1 Corn cob feed Corn cob (also known as corn axis) is a by-product of corn production, which is the axis of corn ears after removing the seeds and grains. Microbial fermentation produces various enzymes, which break down the chemical bonds of crude fiber in corn cob and degrade components such as cell walls, releasing a large amount of sugars to produce feed. 4. Target requirements 4.1 Raw material preparation 4.1.1 Raw materials The corn cob raw materials should be clean, free from impurities and mold, and meet the hygiene standards specified in GB 13078-2017. 4.1.2 Preparation of additives Common additives include cellulose complex enzymes, molasses, urea, and ammonium sulfate. Molasses should meet the standards specified in NY/T 3476-2019. 4.2 Production methods 4.2.1 Crushing Crush the corn cob with a dedicated crusher, with a particle size of 0.3cm to 0.5cm. 4.2.2 Soaking Soak the corn cob for more than 12 hours to soften it, with a water content controlled at 60% to 70%. The ideal state is that when squeezing it with your fingers, there is liquid seeping out but not dripping. 4.3 Treatment of corn cob Before fermentation, the corn cob should be treated with feed enzymes or molasses and urea. 4.3.1 Treatment with feed enzymes Add 1 to 1.5kg of cellulose feed enzymes per ton of corn cob. First, pre-mix the cellulose enzymes with 20kg of corn flour or bran. Sprinkle the mixed enzymes evenly on the corn cob and mix well. If possible, use a fully mixed ration mixer to mix it. 4.3.2 Treatment with molasses and urea Add 50kg of molasses