T/NAASS 024-2022 Active Group standards

T/NAASS 024-2022 Ningxia Large-scale Cattle Farms' Full Mixed Daily Diet Production and Quality Evaluation Procedures

T/NAASS 024-2022

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 024-2022

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 of total mixed ration (TMR) production and quality evaluation for large-scale dairy farms in Ningxia, including TMR mixers, herd and TMR types, feed and nutritional requirements, TMR production, TMR quality evaluation, and feeding management. This document applies to the production and quality evaluation of TMR in large-scale dairy farms in Ningxia. Main technical content: 3 Terms and Definitions The following terms and definitions apply to this document. 3.1 Total Mixed Ration (TMR) A scientifically designed ration formulated based on the nutritional needs of dairy cows and the nutritional value of feed raw materials. The selected coarse feed, concentrated feed, minerals, vitamins, and additives are cut and mixed in a specific proportion using dedicated mixing machines to produce a well-balanced diet. (Source: NY/T 3049-2016, 3.1) 3.2 Dry Matter Intake (DMI) The total amount of dry matter consumed by cows from all feed sources within 24 hours. (Source: NY/T 3049-2016, 3.2) 3.3 Pennsylvania Sifter A tool composed of two sieves with different apertures and a base, used to evaluate the proportion of various components in TMR. 4 TMR Mixers 4.1 The quality requirements for TMR mixers shall be implemented in accordance with NY/T 2203. 4.2 Types and selection of TMR mixers TMR mixers can be divided into three types based on their mixing methods: tractor-drawn, self-propelled, and fixed. They can also be classified into vertical and horizontal types based on the direction of the mixing shaft. The appropriate TMR mixer model should be selected according to the scale of the herd, the structure of the barn, and the feeding method. 4.3 TMR mixer volume configuration See Table 1 for the selection of TMR mixer volume based on the scale of dairy farming. Table 1 Selection of TMR mixer volume based on the scale of dairy farming TMR mixer volume (m3) Number of animals fed per mixing (head) Su